I-19 Frontage Roads Study Area 94 Appendix C Cultural Resources Database Search Results

II--1199 FFrroonnttaaggee RRooaaddss SSttuuddyy Task Assignment TPD 01-08 Contract # T0449P001 PGKG 3120

Working Paper No. 1 – Existing and Future Conditions

Prepared by:

January, 2008 091374019

1. INTRODUCTION ...... 1 1.1 Study Purpose...... 1 1.2 Study Area...... 1 1.3 Purpose of Working Paper No. 1...... 2

2. REVIEW OF PLANS, STUDIES, AND PROGRAMMING INFORMATION ...... 5 2.1 Studies and Plans...... 5 2.1.1 Interstate 19 Corridor Study, I-10 to Pima / Santa Cruz County Line, Corridor Report and General Plan, Kimley-Horn and Associates, October 2003...... 5 2.1.2 City of Nogales, Unified Nogales / Santa Cruz County Transportation 2000 Plan, December 2000 ...... 7 2.1.3 City of Nogales, North-South / East-West Interconnectors and Frontage Roads Feasibility Analysis, January 2000...... 7 2.1.4 Town of Sahuarita, Arizona Small Area Transportation Study, September 1999 ..8 2.1.5 ADOT, Southeast Arizona Regional Transportation Profile Working Paper No. 2, Needs and Deficiencies, December 2005 ...... 8 2.1.6 Pima County I-19 East Frontage Roads Design Concept Report, Canoa Ranch Drive to Continental Road, On-going (2007)...... 9 2.1.7 I-19 Widening, I-10/ I-19 Interchange to San Xavier Road, on-going (2007) .....10 2.1.8 Santa Cruz County, Preliminary Design Concept Report for Rio Rico West Frontage Road, Yavapai Drive to Calle Calabasas...... 10 2.1.9 ADOT, I-19 West Frontage Road, Country Club Road to Ruby Road, Final Project Assessment, June 2005...... 10 2.2 Agency Programs and Long Range Plans ...... 12 2.2.1 ADOT 5-Year Transportation Facilities Construction Plan (2008-2012)...... 12 2.2.2 PAG Five-Year Draft Regional Transportation Improvement Plan (TIP) (2008- 2012) 12 2.2.3 PAG 2030 Regional Transportation Plan...... 12 2.2.4 SEAGO Transportation Improvement Program (2008-2012)...... 13 2.3 Agency General Plans ...... 13 2.3.1 Santa Cruz County General Plan (2004) ...... 13 2.4 Summary of Completed Traffic Impact Studies ...... 14 2.5 U.S. Border Patrol Permanent Inspection Station ...... 15

3. EXISTING (2007) CONDITIONS ...... 19 3.1 Frontage Road Overview ...... 19 3.1.1 West-Side Frontage Roads...... 19 3.1.2 East-Side Frontage Roads...... 20 3.2 Laneage...... 24 3.2.1 Frontage Road / Interchange Intersections ...... 24 3.3 Traffic Volume Data ...... 27 3.4 Frontage Road Level of Service ...... 27 3.5 Access Management ...... 28

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc i I-19 Frontage Road Study January 2008 Working Paper No. 1 TABLE OF CONTENTS WORKING PAPER 1 - EXISTING AND FUTURE CONDITIONS

3.6 Existing Traffic Control...... 32 3.7 Crash Summary ...... 32 3.8 Transit Services...... 36 3.8.1 Sun Tran...... 36 3.8.2 Pima County Rural Transit ...... 36 3.9 Bicycle Facilities ...... 36 3.10 Maintenance of the Frontage Road System...... 38 3.11 Neighborhood Electric Vehicles...... 40

4. ENVIRONMENTAL OVERVIEW ...... 41 4.1 Purpose of an Environmental Overview...... 41 4.1.1 Environmental Conditions Study Area...... 41 4.2 Social and Environmental Opportunities and Constraints...... 41 4.2.1 Land Jurisdiction and Ownership...... 41 4.2.2 Socioeconomic Conditions...... 43 4.2.2.1 Title VI Populations ...... 43 4.2.2.2 Title VI Related Statutes/ Environmental Justice Populations...... 47 4.2.2.3 Limited English Proficiency (LEP) Populations...... 51 4.2.2.4 Socioeconomic Environment Conclusions ...... 54 4.2.3 Natural Environment ...... 54 4.2.3.1 Biotic Communities...... 54 4.2.3.2 Wildlife...... 55 4.2.3.3 Special Status Species and Critical Habitat ...... 57 4.2.3.4 Noxious Weeds ...... 58 4.2.3.5 Water Resources...... 58 4.2.3.6 Prime and Unique Farmlands...... 59 4.2.4 Visual Character...... 62 4.2.5 Air Quality...... 62 4.2.5.1 Nonattainment Areas...... 63 4.2.5.2 Conformity...... 63 4.2.6 Noise ...... 63 4.2.7 Hazardous Materials ...... 65 4.2.7.1 Underground Storage Tanks ...... 66 4.2.7.2 Leaking Underground Storage Tanks...... 66 4.2.7.3 Hazardous Material Incident Logbook...... 66 4.2.7.4 Superfund Sites ...... 66 4.2.7.5 Treatment, Storage, and Disposal Facilities and Solid Waste Landfills...... 66 4.2.7.6 Other Environmental Sites and Facilities ...... 66 4.2.7.7 Hazardous Materials Conclusion ...... 66 4.2.8 4(f) Resources...... 67 4.2.9 6(f) Resources...... 68 4.2.10 Cultural Resources ...... 68 4.2.11 Summary of Environmental Opportunities and Constraints ...... 72

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc ii I-19 Frontage Road Study January 2008 Working Paper No. 1 TABLE OF CONTENTS WORKING PAPER 1 - EXISTING AND FUTURE CONDITIONS

4.2.12 Summary of Land-Use and Jurisdiction, Local Perspectives, Opportunities and Constraints...... 76 4.3 Environmental Overview Conclusion...... 76

5. PROJECTED FUTURE TRAFFIC VOLUMES...... 78 5.1 Near-Term (2017) Traffic Projections...... 78 5.2 Long-Term (2030) Traffic Projections...... 79

6. CONCLUSIONS...... 83 6.1 Transportation Conclusions...... 83 6.2 Environmental Conclusions ...... 84

APPENDIX – ENVIRONMENTAL OVERVIEW SUPPORTING MATERIALS ...... 86 Appendix A Listed and Proposed Threatened and Endangered Species...... 87 Appendix A.1 USFWS Listed and Proposed Species that May Occur in Pima County and Santa Cruz County, Arizona ...... 87 Appendix A.2 AGFD Sensitive Species List Identified within the I-19 Frontage Road Study Area for Pima County and Santa Cruz County, Arizona...... 89 Appendix B Hazardous Material Database Search Results ...... 91 Appendix B.1 Underground Storage Tanks (UST) Database Search Results within the I-19 Frontage Road Study Area ...... 91 Appendix B.2 Leaking Underground Storage Tanks (LUST) Database Search Results within the I-19 Frontage Road Study Area...... 93 Appendix B.3 Incident Logbook Database Search Results within I-19 Frontage Roads Study Area 94 Appendix C Cultural Resources Database Search Results ...... 95 Appendix C.1 AZSITE Cultural Resource Database Results on Cultural Projects within the I-19 Frontage Road Review Area ...... 95 Appendix C.2 AZSITE Cultural Resource Database Results on Cultural Sites within the I- 19 Frontage Road Review Area...... 103 Appendix D Environmental Documentation References...... 125

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc iii I-19 Frontage Road Study January 2008 Working Paper No. 1 TABLE OF CONTENTS WORKING PAPER 1 - EXISTING AND FUTURE CONDITIONS

LIST OF EXHIBITS

Exhibit 1-1 – Study Area Vicinity ...... 3 Exhibit 1-2 – Study Area...... 4 Exhibit 2-3 – Summary of Traffic Impact Studies Reviewed...... 16 Exhibit 3-1 – Frontage Road Segments...... 21 Exhibit 3-2 – Characteristics of West-Side Frontage Road Segments ...... 22 Exhibit 3-3 – Characteristics of East-Side Frontage Road Segments ...... 23 Exhibit 3-4 – Interchange Configurations ...... 25 Exhibit 3-5 – Frontage Road / Ramp Spacing ...... 26 Exhibit 3-6 – 2007 Daily Traffic Volumes...... 27 Exhibit 3-7 – Frontage Roads with Greater Than Average Number of Access Points ...... 28 Exhibit 3-8 – Access Management Summary...... 30 Exhibit 3-9 – Distance Between Interchanges ...... 31 Exhibit 3-10 – Crash Data Summary – West-Side Frontage Roads...... 34 Exhibit 3-11 – Crash Data Summary – East-Side Frontage Roads...... 35 Exhibit 3-13 – Summary of Frontage Road Multi-Use Lane Recommendations from the Santa Cruz Valley Bicycle Advocate Committee...... 38 Exhibit 3-12 – Sun Tran Bus Routes within I-19 Frontage Road Study Area...... 39 Exhibit 4-1 – Land Jurisdiction and Ownership ...... 42 Exhibit 4-2 – Racial and Ethnic Demographics of the Study Area Population ...... 45 Exhibit 4-3 – Socioeconomic / Census Tract Information – Race...... 46 Exhibit 4-4 – Population Composition of Elderly, Low-Income, Disabled, and Female Head-of- Household within the Study Area ...... 49 Exhibit 4-5 – Socioeconomic Data/Census Tract Information (Elderly, Low-Income, Disabled, and Female Head-of-Household) ...... 50 Exhibit 4-6 – Limited English Proficiency (LEP) Populations within the Study Area ...... 52 Exhibit 4-7 – Socioeconomic Data/Census Tract Information (LEP)...... 53 Exhibit 4-8 – Natural Vegetation...... 56 Exhibit 4-9 – 100-year & 500-year Floodplains ...... 61 Exhibit 4-10 – FHWA Noise Abatement Criteria...... 65 Exhibit 4-12: National Register of Historic Places (NRHP) Sites within the I-19 Study Area ...... 69 Exhibit 4-11 – Section 4(f) & 6(f) Resources...... 71 Exhibit 4 -13– Summary of Environmental/Social Opportunities and Constraints ...... 75 Exhibit 4-14 – Summary of Land-Use & Jurisdictions, Local Perspectives, and Constraints...... 77 Exhibit 5-1 – Summary of Near-Term and Long-Term Traffic Volumes...... 80 Exhibit 5-2 – Near-Term Traffic Volumes Projections...... 81 Exhibit 5-3 – Long-Term Traffic Volumes Projections ...... 82

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc iv I-19 Frontage Road Study January 2008 Working Paper No. 1 1. INTRODUCTION The Arizona Department of Transportation has commenced a study of the frontage roads (east- side and west-side) on Interstate 19 from the U.S. / Mexico border in Nogales, Arizona to the Interstate 10 / Interstate 19 interchange in Tucson, Arizona. The study area includes the entire length of Interstate 19, and lies within the eastern portion of Pima County, Arizona, and the western portion of Santa Cruz County, Arizona. The existing frontage roads in the study area are primarily two-way facilities. The existing frontage roads, while serving an important local circulation function, are discontinuous in many areas within the study area.

1.1 Study Purpose The purpose of the I-19 Frontage Roads Study is to: Document existing (2007) traffic operations, safety, and land access conditions on the I-19 frontage roads. Identify traffic and safety deficiencies on the frontage roads for a 10-year planning horizon. Review recommendations for long-term improvements on the frontage roads made in other studies and plans, and document the status of the recommendations. Assess ADOT policies and jurisdictional perspectives on frontage roads relating to construction, maintenance, and operations. Develop a policy recommendation to ADOT for the function, construction, maintenance, and operations of the frontage roads. Example policy positions may include: (a) status quo, (b) construct frontage roads to establish continuity, or (c) turn-back to local jurisdictions. Recommend a 10-year program of multi-modal improvements. This may include projects such as shoulder widening, intersection improvements, speed-change lanes, access management strategies, or future needed studies by ADOT. The study will include a series of open houses and stakeholder meetings that will be facilitated and documented to identify issues, present transportation and policy recommendations, and obtain input.

1.2 Study Area The study area encompasses the east side and west side frontage roads on Interstate 19, from the U.S. / Mexico border to the Interstate 10 / Interstate 19 interchange in Tucson, Arizona, a distance of approximately 60 miles (95 km). Exhibit 1-1 displays the project vicinity. Exhibit 2-1 displays in more detail the study area roadways. A Technical Advisory Committee (TAC) comprised of agencies and jurisdictions within the study area has been established to participate in the study process. The following agencies are represented on the TAC: Arizona Department of Transportation (Transportation Planning Division, Tucson District, Baja Traffic Region, Communications and Community Partnership Division) Pima Association of Governments (PAG) 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 1 I-19 Frontage Road Study January 2008 Working Paper No. 1 Pima County Department of Transportation Southeastern Arizona Governments Organization Arizona Department of Public Safety Arizona State Land Department San Xavier District of the Tohono O’odham Nation City of Nogales Town of Sahuarita Santa Cruz County Greater Nogales/Santa Cruz County Port Authority Green Valley Community Coordinating Council Fresh Produce Association of the Americas

1.3 Purpose of Working Paper No. 1 Working Paper No. 1 presents available data and information on existing and future traffic conditions on I-19 frontage roads necessary to identify needs and deficiencies. Working Paper No. 1 is organized as follows: Chapter 1 describes the project, study area and study purpose. Chapter 2 presents an overview of recently completed and on-going transportation studies that have addressed transportation issues on frontage roads in the study area. These include the I-19 Corridor Study, the Southeast Arizona Regional Transportation Profile, and the Nogales/Santa Cruz Small Area Transportation Study. The status of the recommendations made in each of these studies is documented. Chapter 2 also summarizes ADOT and local jurisdiction relevant programming information and developer-led traffic impact studies. Chapter 3 documents existing traffic conditions in the study, including current daily traffic volumes, access management, traffic control, crash history and rates, and multimodal (transit, pedestrian facilities, bicycle) transportation facilities and use. Chapter 4 presents an environmental overview consistent with ADOT Environmental Overview Guidelines. The environmental overview includes a description of the affected physical and socioeconomic environment, and identifies potential environmental concerns within the study area. The focus of the environmental overview is on environmental conditions that may affect future projects on the frontage road system. Title VI and Environmental Justice considerations are addressed. Chapter 5 documents future traffic conditions on the I-19 frontage roads. Traffic projections for 2030 will be documented based on a review of other completed studies and future development. This information, combined with 2007 traffic data, will be used to derive traffic projections for an interim 10-year planning horizon (2017). Chapter 6 presents conclusions based on the data presented in Chapters 2 through 5.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 2 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 1-1 – Study Area Vicinity

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 3 I-19 Frontage Road Study January 2008 Working Paper No. 1 TUCSON 5VWF[#TGC

EXIT 95 VALENCIA ROAD NOGALES HWY NOGALES EXIT 80 PIMA MINE ROAD

EXIT 75 SAHUARITA ROAD

LA CANADA DRIVE

EXIT 69 DUVAL MINE RD

CONTINENTAL ROAD EXIT 63 MISSION TWIN BUTTES CAMINO ENCANTO CALLE TRES

CANOA ROAD EXIT 56 PIMA COUNTY ELEPHANT HEAD ROAD EXIT 48 ARIVACA RD SANTA CRUZ COUNTY AMADO AGUA LINDA ROAD EXIT 42

CHAVEZ SIDING ROAD EXIT 40

TUBAC ROAD EXIT 34 TUBAC TUMACACORI EXIT 29 TUMACACORI PALO PARADO ROAD EXIT 25

PECK CANYON ROAD EXIT 22

RIO RICO DRIVE EXIT 17 PENDLETON DRIVE

RUBY ROAD EXIT 12

COUNTRY CLUB ROAD NOGALES Interstate Frontage Road U.S./MEXICO BORDER Cross - Road

'ZJKDKVÄ 2. REVIEW OF PLANS, STUDIES, AND PROGRAMMING INFORMATION Chapter 2 presents an overview of recently completed and on-going transportation studies that have addressed transportation issues on study area frontage roads. This section also includes a documentation of progress/status of the recommendations made in the studies. The studies that were reviewed are:

Reference Document Title 2.1.1 ADOT Interstate 19 Corridor Study, I-10 to Pima / Santa Cruz County Line 2.1.2 City of Nogales, Unified Nogales / Santa Cruz County Transportation 2000 Plan 2.1.3 City of Nogales, North-South / East-West Interconnectors and Frontage Roads – Feasibility Analysis 2.1.4 Town of Sahuarita, Arizona, Small Area Transportation Study 2.1.5 ADOT, Southeast Arizona Regional Transportation Profile 2.1.6 Pima County, I-19 Frontage Roads Design Concept Report, Canoa Road to Continental Road, On-going (2007) 2.1.7 ADOT, I-19 Widening, Ajo to San Xavier Mission Road 2.1.8 Preliminary Design Concept Report for Rio Rico West Frontage Road, Yavapai Drive to Calle Calabasas 2.1.9 ADOT, I-19 West Frontage Road, Country Club Road to Ruby Road, Final Project Assessment, June 2005 2.1.10 ADOT, Nogales-Tucson Highway, Rio Rico Traffic Interchange to Ruby Road Traffic Interchange Change of Access Study (reconstructed in 2004) 2.1.11 Santa Cruz County, Rio Rico Corridor Study, 2002

Chapter 2 also summarizes relevant short and long-range programming information from ADOT, regional planning organizations, county, and local jurisdictions that affects the I-19 frontage roads. In addition, recommendations from traffic impact studies for a number of development projects affecting the frontage roads are summarized.

2.1 Studies and Plans

2.1.1 Interstate 19 Corridor Study, I-10 to Pima / Santa Cruz County Line, Corridor Report and General Plan, Kimley-Horn and Associates, October 2003 The purpose of the I-19 Corridor Study was to identify transportation needs and deficiencies along approximately 33 miles of I-19 in Pima County, Arizona and to develop recommendations for corridor rehabilitation to meet multi-modal transportation demands in the year 2030. A summary of recommendations and the status of the recommendations is provided below. The report notes that:

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 5 I-19 Frontage Road Study January 2008 Working Paper No. 1 1. Small segments of frontage roads located near the Valencia Road and Duval Mine interchanges have been or are being turned over to local jurisdictions as part of the interchange reconstruction projects by ADOT. 2. The recommendations assume that the frontage roads south of Continental Road will remain under the jurisdiction of ADOT and are intended to improve traffic operational aspects of the I-19 corridor by providing an alternate route to the freeway during incidents or congestion. However, if it is determined through studies and coordination with Pima County that frontage roads are to be turned over to local control, those recommendations should be reconsidered. Recommendations for I-19 Frontage Roads

I-19 frontage roads between Continental Road and Arivaca Road primarily serve as local access roads to land development along the corridor. A study should be conducted in cooperation with Pima County to define the future function of the frontage roads and to determine whether these frontage roads will serve a function consistent with roadways on the State Highway System.

STATUS: The I-19 Frontage Roads Study is addressing this recommendation.

If frontage roads are to remain under ADOT jurisdiction, convert and reconstruct discontinuous two-way frontage roads between Continental Road and Canoa Road to continuous, one-way frontages. In conjunction with the conversion of the frontage roads, construct a new freeway crossing on the Camino Encanto roadway alignment.

STATUS: Pima County is currently conducting a Design Concept Report (DCR) for the east-side frontage roads between Canoa Road and Continental Road (Pima County Project Number 4INFRC, ADOT TRACS No. H7191 01C), a 4.6 mile segment. The east-side frontage road is being planned and designed as a two-lane, two-way roadway with paved shoulders. Improvements to existing frontage road intersections and improvements to the interchanges at Canoa Road and Continental Road are included in the project. An analysis of a new freeway crossing at Camino Encanto is not included in the project.

A recommendation for continuous, one-way frontage roads between Continental Road and Canoa Road received significant public opposition at the October 2002 open houses. Support was received for a new freeway crossing on Camino Encanto roadway alignment and construction of continuous one-way frontage roads. An ADOT design concept study should be conducted to evaluate alternatives to the above recommendations including alternatives for providing one-way frontage roads between Canoa Road and Camino Encanto crossing.

STATUS: See above. The Design Concept Report currently being developed in this area is assuming a two-way frontage road. A Camino Encanto crossing is not being analyzed as part of the project.

Frontage road design must incorporate ADOT design criteria if those frontage roads are to remain part of the State Highway System. Frontage road infrastructure design projects should

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 6 I-19 Frontage Road Study January 2008 Working Paper No. 1 coordinate with local jurisdictions, integrate with local design criteria, and include a public information program to obtain public input during the design process.

STATUS: The I-19 Frontage Roads Study will assist in addressing this recommendation.

A concept of parallel, one-way frontage road system was recommended as not being feasible for I-19, north of Valencia Road, based on geometric, traffic operations, and land use access issues including recommendations for reconstructing the following interchanges to single point urban interchanges; Ajo Way, Irvington Road, and Drexel Road (new interchange). The Valencia Road interchange reconstruction to a single point urban interchange has been completed.

STATUS: No frontage roads are planned in this area. 2.1.2 City of Nogales, Unified Nogales / Santa Cruz County Transportation 2000 Plan, December 2000 The purpose of the Unified Nogales / Santa Cruz County Transportation 2000 Plan was to develop a transportation plan to address short-term (5-year), mid-term (10-year), and long-term (20-year) transportation needs for Nogales/ Santa Cruz County planning region. Short Term (2001-2005) Recommendations for I-19 Frontage Roads Conduct a corridor study for I-19 Frontage Road, Rio Rico to Western Avenue. Design and construct East I-19 Frontage Road, Rio Rico to Ruby Road.

Mid –Term (2006-2010) Recommendations for I-19 Frontage Roads No recommendations are made related to I-19 Frontage Roads

Long-Term (2011-2020) Recommendations for I-19 Frontage Roads Design and construct I-19 Frontage Roads, Rio Rico to Western Avenue. Design and construct I-19 Frontage Roads, Ruby Road to Rio Rico Road.

STATUS: A Design Concept Report was prepared for a two-lane west-side frontage road between Yavapai Drive and Calle Calabasas which would complete the frontage road connection between Rio Rico and Ruby traffic interchanges. The west-side frontage road from the Ruby Road interchange to its southern terminus near Country Club Road is currently under initial design by ADOT.

The east-side frontage road, Rico Rico Drive to Ruby Road, was designed and constructed by ADOT and included interchange improvements at Rio Rico Drive and Ruby Road. 2.1.3 City of Nogales, North-South / East-West Interconnectors and Frontage Roads Feasibility Analysis, January 2000 The purpose of the feasibility analysis was to conduct engineering field reviews and analyses necessary to develop planning-level corridor descriptions, corridor development process, and

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 7 I-19 Frontage Road Study January 2008 Working Paper No. 1 associated cost estimates for three proposed roadway corridors in the Nogales urban area. One of the three corridors considered in this feasibility study included I-19 Frontage Roads from Ruby Road to Western Avenue. The study defined a process for further frontage road and corridor study. Recommendations for I-19 Frontage Roads The study recommended that new frontage roads should generally follow existing frontage road alignments. The study recommends that approximately 4 miles of new one-way frontage roads should be constructed on both sides of I-19 from Country Club Drive to Western Avenue.

STATUS: In the past, ADOT has conducted project assessments for west-side frontage road improvements and extension south of Country Club Drive however no projects are underway or programmed at this time for frontage roads in this area.

2.1.4 Town of Sahuarita, Arizona Small Area Transportation Study, September 1999 The purpose of the Town of Sahuarita, Small Area Transportation Study was to evaluate the transportation system requirements for Sahuarita, Arizona. The primary goals of the study were to define the current circulation system, evaluate its performance, forecast future needs, and prepare a plan for fulfilling the identified needs. The I-19 frontage roads within the town limits include the west-side frontage road that extends from Duval Mine Road south about one-half mile to Duval Road and the east-side I-19 frontage road which extends north and south of Duval Mine Road (Nogales Highway). Since the publication of that report, the Duval Mine Road interchange has undergone major reconstruction and the east-side frontage road has been removed south of Nogales Highway. The west-side frontage road has been turned-back to local (Town of Sahuarita) jurisdiction.

Recommendations for I-19 Frontage Roads Study recommended extending the west-side frontage Road north of Duval Mine Road to access developing property. Study recommended abandonment of east-side frontage road between Nogales Highway and Duval Road.

STATUS: The east-side frontage road was abandoned between Nogales Highway and Duval Road as part of the Duval Mine Road interchange reconstruction.

2.1.5 ADOT, Southeast Arizona Regional Transportation Profile Working Paper No. 2, Needs and Deficiencies, December 2005 The purpose of the Southeast Arizona Regional Transportation Profile, Working Paper No. 2, was to document future transportation system needs and deficiencies for the Southeast Arizona Regional Transportation Profile study area. The study area includes Cochise and Santa Cruz counties, as well as a portion of southeast Pima County. Final study recommendations are not yet available.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 8 I-19 Frontage Road Study January 2008 Working Paper No. 1 Recommendations for I-19 Frontage Roads Working Paper No. 2 summarizes several current and future projects related to interchange needs and deficiencies which were previously identified in the I-19 Corridor Study and the Unified Nogales/ Santa Cruz County Transportation 2000 Plan. Available documents do not identify any additional recommendations, beyond those already identified in other studies for I-19 Frontage Roads.

2.1.6 Pima County I-19 East Frontage Roads Design Concept Report, Canoa Ranch Drive to Continental Road, On-going (2007) Pima County Department of Transportation is currently conducting a design concept report for Interstate 19 east-side frontage roads between Canoa Ranch Road and Continental Road that will complete a frontage road gap between the these two interchanges. The project includes the design of a two-lane frontage road on the east side of I-19 between Continental Road and Canoa Ranch Drive, for a distance of 4.6 miles and safety and operational improvements at Continental Road. The resulting project, utilizing the preferred alternatives at Canoa Road, Esperanza Wash and Continental Road. will consist of the following design features: A roundabout east of I-19 at Canoa Road. A continuous 2-lane frontage road between the Canoa Interchange and the Continental Interchange. A new bridge over Esperanza Wash. A combined signalized intersection of the East Frontage Road, the I-19 northbound on and off ramps and Continental Road. Widening of Continental Road between the southbound on and off ramps and the Post Office, including widening of the underpass of I-19 to accommodate northbound dual left-turn lanes.

The project design is being administered by the Pima County Department of Transportation (PCDOT); however, both The Arizona Department of Transportation (ADOT) and PCDOT will review all project deliverables. The Federal Highway Administration (FHWA) will also be involved in the review process.

Pima County has adopted a master plan for the Raúl M. Grijalva Canoa Conservation Park. This project is adjacent to the I-19 East Frontage Road project and consists of preservation and restoration of the Manning Era ranch headquarters. Visitor parking, a new orientation center and a new conference and dining center are also proposed. Access to Canoa Ranch will be provided as a part of the I-19 East Frontage Road project. The Canoa Ranch development is on the west side of I-19 adjacent to the Canoa interchange. This development is age-restricted and consists of approximately 2,100 homes, 360 condominiums, 170,000 square feet of commercial space and a resort consisting of 200 homes, 30 casitas and 98,000 square feet of commercial space along with a golf course and associated club house. This development is recommending a roundabout diamond interchange consisting of roundabouts east and west of I-19 at Canoa.

STATUS: The draft Design Concept Report was published in December 2007, and is currently under review. The frontage road is planned to be a two-lane, two-way roadway with paved shoulders. Paved shoulders are planned to be 4-feet wide which will accommodate bicyclists but not golf carts. Comments by Green Valley representatives have indicated that this is a major

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 9 I-19 Frontage Road Study January 2008 Working Paper No. 1 disruption to multi-modal transportation widely used in Green Valley. I-19 divides the town and golf carts will not be able to cross the interstate at the Canoa Interchange, but they would be able to, if the paved shoulders were 6- feet wide as they are through out most of Green Valley.

2.1.7 I-19 Widening, I-10/ I-19 Interchange to San Xavier Road, on-going (2007) A design concept report and environmental assessment are currently being prepared for the ultimate widening of I-19, from the I-19/I-10 interchange to San Xavier Road. The project was originally scoped as an interim widening project from Ajo Way to San Xavier Road. The roadway widening plan calls for I-19 to be widened to four lanes in each direction from the I- 10 / I-19 interchange to Valencia Road. From the Valencia Road interchange to San Xavier Road, I-19 is planned to be widened to three through lanes in each direction. Collector-distributor roads are planned between San Xavier Road and Los Reales Road and northbound from Ajo Way to Eastbound I-10. STATUS: This project is ongoing.

2.1.8 Santa Cruz County, Preliminary Design Concept Report for Rio Rico West Frontage Road, Yavapai Drive to Calle Calabasas A design concept report was prepared for a new two-lane frontage road between Yavapai Drive and Calle Calabasas. This project would complete the frontage road connection between Rio Rico and Ruby traffic interchanges with I-19. The typical section includes one 12-foot travel lane in each direction, with seven foot paved shoulders. The intersection of the west-side frontage road and Yavapai Drive is planned to be signalized when the frontage road is constructed. STATUS: This project is programmed in the SEAGO Transportation Improvement Program to be constructed in 2012.

2.1.9 ADOT, I-19 West Frontage Road, Country Club Road to Ruby Road, Final Project Assessment, June 2005 The purpose of this project is to improve the safety and operation of the existing 2-lane west-side frontage road from Al Harrison Drive (located south of Country Club Road at MP 4.5) to Ruby Road (MP 7.7). The project scope includes two phases. The first phase consists of improvements to the intersection of the west-side frontage road and Country Club Drive. A roundabout is planned to be built. The second phase consists of improvements to the west-side frontage road from Al Harrison Drive to Ruby Road including reconstruction of the existing west-side frontage road, further improvements to the intersection of West Frontage road and Country Club Drive, and relocation of the south leg of the intersection of the west-side frontage road to line up with the northerly leg of the intersection of the West Frontage Road and Ruby Road. The north leg of the intersection of the west-side frontage road with Ruby Road will be widened to provide four lanes at the intersection to accommodate signalization. The report states that the City of Nogales is planning to annex the area south of Ruby Road within the next 5-years, and is willing to take ownership of the frontage road after it has been constructed. STATUS: This project has not been constructed.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 10 I-19 Frontage Road Study January 2008 Working Paper No. 1 2.1.10 ADOT, Nogales-Tucson Highway (1-19) Rio Rico Traffic Interchange to Ruby Road Traffic Interchange, Draft Change of Access Report, January 2002

This report requests a modification in access control for I-19 northbound only resulting from the frontage road being reconstructed between these interchanges. The project consists of relocating the I-19 northbound off-ramps for both Ruby Road and Rio Rico Drive to new locations at the mainline. Key features of the recommended alternative include: Ramps connected to the frontage Road except northbound on-ramp at Ruby Road. Two-way operation to north end of industrial park, one-way frontage road operation to Rio Rico Drive. Southbound connector between Ruby Road and frontage road.

The east-side two-way frontage road will be reconfigured and signed as one-way near the crossroads with relocated connections from the crossroad to the frontage road allowing two-way traffic through a large portion of the frontage road. The project also includes widening of the existing Ruby Road bridge. STATUS: This project has been constructed. 2.1.11 Santa Cruz County, Rio Rico Corridor Study, 2002 The purpose of this study was to identify an additional all-weather access roadway that connects development lying to the east of the Santa Cruz River with the Interstate 19 corridor. Alternatives were evaluated in an area bounded to the north by Bridge Road (north of Tubac), on the south by Rio Rico Drive, to the west by Interstate 19 and to the east by developments existing east of the Santa Cruz River and having current access to either Pendleton Road or Bridge Road. The Palo Parado crossing and alignment was the recommended alternative for a new all-weather crossing. STATUS: No action has been taken on constructing the recommended alternative. 2.1.12 Continental Road / I-19 Pedestrian Enhancement Grant Application, August, 2005 The Continental Road/I-19 Bicycle and Pedestrian Enhancement provides new bicycle lanes, sidewalks, and shade landscaping at the I-19 interchange with Continental Road. This project is located along Continental Road from La Cañada Drive to Abrego Drive.This project will link existing north/south bike lanes on La Cañada Drive and on Abrego Drive to recently completed bike lanes on Continental Road east of I-19 to White House Canyon Road, and will connect missing sections of sidewalk on both sides of I-19. The project will also link with a planned bike lane project by Pima County west of I-19, connecting to Pima College and also to recently completed bike lanes on Camino del Sol. This project will provide the first and only east/west bike route in the community and will increase pedestrian safety and access, particularly for persons with disabilities.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 11 I-19 Frontage Road Study January 2008 Working Paper No. 1 The project extends 0.55 miles through the underpass, includes construction of 6-foot bike lanes and 6-foot sidewalks that comply with ADA standards, and installation of shade trees to enhance the intersection as the “gateway” to Green Valley and to the Madera Canyon Recreation Area. It also opens up a route for the 3,600 residents east of I-19 to more safely walk and bike to the shopping and recreational areas west of I-19. STATUS: This project was approved and ADOT is in the process of completing the design of the Continental Road/I-19 Bicycle and Pedestrian Enhancement Project. The project is planned to be advertised for construction in 2009. Improvements will be coordinated with the I-19 East Frontage Road project. 2.2 Agency Programs and Long Range Plans Agency programming documents were reviewed for projects on I-19 Frontage Roads. Programming documents from ADOT, Pima Association of Governments (PAG), Southeastern Arizona Governments Organization (SEAGO), Pima County, Santa Cruz County, and City of Nogales were reviewed. These programs are described as follows.

2.2.1 ADOT 5-Year Transportation Facilities Construction Plan (2008-2012) The ADOT 5-Year Plan (2008-2012) shows that a new frontage road is planned for construction from the Canoa traffic interchange to the Continental traffic interchange beginning in 2009. This is consistent with the I-19 East Frontage Roads Design Concept Report, Canoa Ranch Drive to Continental Road, described in Section 2.1.6.

2.2.2 PAG Five-Year Draft Regional Transportation Improvement Plan (TIP) (2008- 2012) The Pima Association of Governments Draft Five-Year TIP (2008-2012) shows that beginning in 2008, the I-19 east-side frontage road from the Canoa Road traffic interchange to the Continental Road traffic interchange will be constructed with paved shoulders. This is a Regional Transportation Authority funded project. The I-19 / Irvington Road traffic interchange is planned to be reconstructed as a single point urban interchange (SPUI). Although frontage roads are not planned or existing in this section of I-19, this project listing is provided for general information.

Project name Project Limits Project Project Description Implementation Jurisdiction Length Year (s)

I-19 East Canoa TI to 4.6 Construct new frontage 2008-2012 Pima County Frontage Road – Continental Road road with paved Part 2 shoulders

I-19 : Irvington TI Irvington TI N/A Reconstruct TI with 2009, 2012 ADOT SPUI

2.2.3 PAG 2030 Regional Transportation Plan The PAG 2030 Regional Transportation Plan identifies improvements to I-19 frontage roads, as summarized in the table below. In addition, several interchange reconstruction projects are planned at the I-19 / Canoa Road traffic interchange, the I-19 / Irvington Road traffic interchange,

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 12 I-19 Frontage Road Study January 2008 Working Paper No. 1 the I-19 / Pima Mine Road interchange, and the I-19 / Sahuarita Road interchange. Mainline widening of I-19 is planned between Valencia Road and Ajo Way. It should be noted that the I-19 West Frontage Road project identified at Continental Road is already constructed and in operation.

Project name Project Limits Project Project Implementation Jurisdiction Length Description Year (s)

I-19 East Frontage Canoa TI to 4.6 Reconstruct and Early Period Pima County Road Continental Road Complete East Frontage Road

I-19 West Frontage Continental Road 0.73 Realign to Separate Early Period Pima County Road at Continental to Mission Twin ramps to provide Road Buttes Road traffic signals

I-19 / Canoa Traffic I-19 / Canoa Traffic Reconstruct Medium Period Pima County Interchange Interchange Interchange approaches

I-19 / Irvington I-19 / Irvington Reconstruct Early Period ADOT Road Traffic Road Traffic Interchange with Interchange Interchange SPUI

I-19 Mainline Valencia Road to 3.03 Widen to 6 lanes Early Period ADOT Widening #3 Ajo Way

I-19 / Pima Mine I-19 / Pima Mine Reconstruct Medium Period ADOT Road Traffic Road Traffic Interchange Interchange Interchange

I-19 / Sahuarita I-19 / Sahuarita Reconstruct Medium Period ADOT Road Traffic Road Traffic Interchange Interchange Interchange

2.2.4 SEAGO Transportation Improvement Program (2008-2012) The FY 2008-2012 SEAGO Transportation Improvement Plan lists one project for Fiscal Year 2012, which is the reconstruction of the Rio Rico west-side frontage road. It should be noted that the project is listed in the Transportation Improvement Plan to get it functionally classified with the Federal Highway Administration, as prerequisite to obtaining Federal Surface Transportation Program (STP) funding.

Project name Project Limits Project Project Implementation Jurisdiction Length Description Year (s)

Rio Rico West 3.1 Reconstruct West 2012 Santa Cruz Frontage Road Frontage Road County

2.3 Agency General Plans

2.3.1 Santa Cruz County General Plan (2004) A review of the Santa Cruz County General Plan identified the following recommendations regarding I-19 Frontage Roads: The I-19 Frontage Road at Tubac has been proposed as a candidate for a scenic route.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 13 I-19 Frontage Road Study January 2008 Working Paper No. 1 Federal and state highways need to be improved or maintained to accommodate traffic increases. This would include frontage road and interchange improvements along I-19 and maintenance issues on SR 82 and SR 83 to Parker Canyon Lake. To reduce the impacts from the developing areas on traffic flow on I-19, limited access should be maintained. This can be facilitated with improvement to and increased use of the frontage roads and ensuring connectivity to established interchanges.

2.4 Summary of Completed Traffic Impact Studies Over the past several years, several development projects have been proposed for construction along the I-19 corridor that could potentially significantly affect frontage roads operations. Available traffic impact studies for developments along the I-19 corridor were reviewed and are summarized in Exhibit 2-3. In addition to those developments for which traffic studies have been completed, other developments have been proposed but not yet approved. These include the following: Las Mesas: The Santa Cruz County Board of Supervisors approved the Las Mesas Comprehensive Plan Amendment in December, 2007. Las Mesas, located south of Chavez Siding Road on the east side of I-19 is proposed to include over 2,600 homes. The development plan shows that new roads to the development will access the frontage roads (see rendering). The Santa Cruz County Community Development Department Staff report for the project stated that many as 26,000 vehicles per day could be added to the Chavez Siding interchange. Information materials provided by the developer states that significant improvements would be made to the interchange and frontage road that serve the development. Sopori Ranch: The developers of Sopori Ranch propose to construct approximately 6,000 homes. The Santa Cruz County Board of Supervisors approved the Sopori Ranch Comprehensive Plan Amendment in December, 2007.

Development in the Pima Mine Road Area – Comments received from the Town of Sahuarita and the Tohono O’odham Nation indicated that the Town has interest in a new interchange south of Pima Mine Road and the potential development of large tracts of vacant land in that area. There

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 14 I-19 Frontage Road Study January 2008 Working Paper No. 1 is also an interchange proposal by the Tohono O’odham Nation north of Pima Mine Road. Commercial or other development opportunities of these large land tracts may be fostered by consideration of a frontage road system in this area, which is of mutual benefit to the Town of Sahuarita and the Tohono O’odham Nation.

2.5 U.S. Border Patrol Permanent Inspection Station In November 2006, the U.S. Congress listed a federal prohibition on permanent U.S Border check points in the U.S. Border Patrol Tucson Sector. As a result, in November, 2006, the U.S. Border Patrol stopped moving a temporary checkpoint up and down I-19 and fixed it at kilometer 42. The Border Patrol also began planning to build an interim checkpoint and a more permanent in the Tucson Sector. In September 2007, the Border Patrol announced that they would locate the interim check point at kilometer 41.5 or 42, and will improve the existing temporary check point on I-19. Previously the Border Patrol had been planning to operate a checkpoint between kilometers 50 and 52, near Amado. The Border Patrol has also announced that the scale and size of the permanent check point would be dramatically reduced in size as compared to a check point in Laredo, Texas. As the U.S. Border Patrol continues to develop its plans, coordination will be required with ADOT, including consideration of frontage roads.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 15 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 2-3 – Summary of Traffic Impact Studies Reviewed

Document Reference Development Project Location Impact to I-19 Key Findings Frontage Roads

Amendment to the Rancho Single family East side of I-19, No No recommendations made as related to I-19 Frontage Roads Sahuarita Master Planned residential, between Sahuarita Community condominium, Road and Pima Mine townhouse, Road Kimley-Horn and elderly housing, Associates, Inc, .April 2005 and retail.

Traffic Impact Analysis Hotel and Southeast corner of I- Yes, one site access For the horizon study year (2009), a southbound left turn lane was Report for Comfort Suite restaurant 19 East Frontage point is planned to recommended at the intersection of the I-19 Frontage Road and the Site Access Hotel Road / Old Tucson intersect the I-19 East Driveway. Road intersection Frontage Road Mathieu Engineering Corp., June 2007

Proposed Developments Commercial, West of Interstate 19 / Yes, three site access 3 proposed access points on I-19 West Frontage Road Impact on the Interstate 19 residential, hotel Canoa Interchange points on I-19 West and Canoa Ranch Road and condominium Frontage Road Signals warranted at I-19 West Frontage Road and Canoa Ranch Road, I-19 Traffic Interchange development East Frontage Road and Canoa Ranch Road, and I-19 Southbound Off-Ramp and Canoa Ranch Road. United Civil Group, January 2007 Recommendations for an interim interchange reconstruction include realigning the north and south legs of the West Frontage Road approximately 400 feet west. Geometrics at the I-19 West Frontage Road/ Canoa Ranch Road intersection are recommended to be Eastbound: one left turn lane and one shared through/right lane Westbound: one shared left / through / right lane Northbound: one shared through / left lane and one right turn lane Southbound: one right turn lane and one through / left lane. The intersection control would change to stop signs on the northbound and southbound approaches until the intersection is signalized. The interim condition would allow the TI to operate at an acceptable level of service for 2-3 years. Considerations should be made for planning and design of an ultimate configuration that may include double roundabouts or a full TI signalization.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 16 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 2-3 – Summary of Traffic Impact Studies Reviewed (continued)

Document Reference Development Project Location Impact to I-19 Key Findings Frontage Roads

Canoa Ranch Traffic Impact Residential, Development is Yes- development is A one-way frontage road was deemed infeasible because of the distance Analysis commercial, and located on both sides located on both sides between interchanges (5 miles in each direction) golf course of I-19 and the of I-19 and the Curtis Lueck & Associates development of frontage roads, near frontage roads, near Access was planned to be provided on the west side of I-19 via direct access 1260 acres. the I-19/ Canoa TI the I-19/ Canoa TI to the West Frontage Road and from Camino del Sol (extended south to the site) and Canoa Ranch Drive (extended west into the site). On the east side, access will come primarily from the East Frontage Road. Offsite improvements relating to the frontage roads include Canoa Road / Frontage Road intersection spot improvements, and spot improvements at development entrances along the frontage road.

Love’s Truck Stop Convenience Southwest corner of Yes, one access point A left turn lane is warranted at the Frontage Road / Access B once the store, fast food Ruby Road and East is planned to intersect development has been constructed. United Civil Group restaurant with I-19 Frontage Road the I-19 East Frontage drive-through Road A right turn lane is warranted at Ruby Road / Access A once the lane, and 20 development has been constructed. The storage for the right-turn lane shall vehicle fueling extend from the Access A to the northbound I-19 frontage road. stations (8 for large trucks), Revision of May 10, 2007

Traffic Impact Study Report Existing schools I-19 West Frontage Yes Left turn deceleration lanes should be installed at the following intersections: for Santa Cruz Valley Road and Camino Unified School District #35 – Maricopa (north of I- Northbound approach on I-19 West Frontage Road at Access Point A to the 19 / SR 289 schools Calabasas Middle School interchange) and Pena Blanca Northbound approach on I-19 West Frontage Road at Camino Maricopa Elementary School, Northbound approach on the I-19 West Frontage Road at Paseo De Yucatan United Civil Group, April 27, A right turn deceleration lane should be installed at the southbound I-19 West 2004 Frontage Road at Access A. Adequate sight distance should be provided for the intersection of Access A / I- 19 West Frontage Road and Camino Maricopa/ I-19 West Frontage Road.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 17 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 2-3 – Summary of Traffic Impact Studies Reviewed (continued)

Document Reference Development Project Location Impact to I-19 Key Findings Frontage Roads

Irvington Road Traffic Under review Interchange Curt Lueck and Associates Traffic Impact Analysis for Residential Camino Diez Yes Limited signal needs assessment warranted installation of traffic signal at Ruby Heights Phase II, development (124 Mandamientos intersection of Boulevard del Ray David and I-19 West Frontage Road for units) accessed via opening year (2008). A full traffic signal warrant analysis was recommended at Kimley-Horn and Boulevard Del Ray these locations. Associates, Inc., September David and I-19 West 2007 Frontage Road

Traffic Analysis for a Town Center, Rio Rico Drive, near No Report focused on Santa Cruz River bridge and need for widening. Proposed Town Center in including high the I-19/ Rio Rico Recommended additional study of impacts to I-19 once site plan established. Rio Rico, Arizona density residential Road interchange shopping center area. Kimley-Horn and and office and Associates, Inc., July 2007 flexible land uses, primarily on the east side of I-19.

Traffic Impact Analysis for a Residential Pendleton Road No I-19 frontage foads were outside the study area for the Rio Rico Country Club. Residential Development in development between Rio Rico Rio Rico, Arizona along Pendleton Drive and Ruby Road Road, east of I-19 Kimley-Horn and Associates, Inc., August 2007

Traffic Impact Analysis for Single Family Along the northerly Yes Developer to construct new 3-lane Camino Diez Mandamientos Loop Roadway Las Colinas Sagradas, residential extension of Camino intersection with I-19 West Frontage Road. At the intersection, a northbound left development Diez Mandamientos turn lane and a southbound right turn lane will be provided. When warranted, the Mathieu Engineering Corp. (1040 residences) developer will build a traffic signal at this intersection. June 2006

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 18 I-19 Frontage Road Study January 2008 Working Paper No. 1 3. EXISTING (2007) CONDITIONS Chapter 3 documents existing conditions in the study area, including current daily traffic volumes, access management, traffic control, crash history, and multimodal (transit, pedestrian, bicycle) transportation facilities.

3.1 Frontage Road Overview The I-19 frontage roads are characterized by frequent discontinuities. For ease of discussion, the frontage roads were numbered into segments that are shown in Exhibit 3-1 and described in Exhibits 3-2 and 3-3 for the west-side frontage road and east-side frontage road segments, respectively. Approximately half of the I-19 mainline has accompanying frontage roads. Gaps in the frontage road system are summarized as follows: West-Side Frontage Road Gaps I-10 to Valencia Road – 3.9 miles Valencia Road to Duval Mine Road -15.7 miles South of Duval Mine Road to Continental Road - 3.8 miles South of Agua Linda Road to north of Chavez Siding Road - 0.73 miles South of Tubac Road to north of Palo Parado Road -1.75 miles Rio Rico to north of Ruby Road - 0.77 miles South of Country Club Road to Border - 4.5 miles

East-Side Frontage Road Gaps I-10 to north of Duval Mine Road – 18.95 miles Duval Mine Road to Continental Road – 3.90 miles South of Continental Road to north of Canoa Road – 1.2 miles South of Agua Linda to north of Chavez Siding Road – 0.91 miles South of Palo Parado to Peck Canyon Road – 1.42 miles South of Peck Canyon Road to north of Rio Rico Road – 2.2 miles North of Country Club Road to Border – the frontage road intersects Grand Avenue

In the northern section of the corridor, there are few frontage roads north of Duval Mine Road, with the exception of a short segment of frontage road at Valencia Road. At the south end of the corridor, the west-side frontage road ends south of Country Club Road in Nogales. A more detailed description of the frontage roads is provided in the following sections.

3.1.1 West-Side Frontage Roads The frontage roads on the west side of I-19 are two-way frontage roads and provide access to a wide variety of land uses. The function of the frontage roads on the west side of I-19 can be characterized as primarily providing local access. Near the interchanges with Valencia Road and Duval Mine Road, the frontage road segments are short and provide access to commercial areas. The longest frontage road segment is 13.2 miles between Continental Road and Agua Linda Road. The frontage road in this area serves Green Valley, Arivaca Junction and Amado. The three separate frontage road segments that are located between Chavez Siding Road and Country Club

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 19 I-19 Frontage Road Study January 2008 Working Paper No. 1 Road are approximately 5 to 6 miles in length. Speed limits vary widely on the west-side frontage road segments, ranging from 25 miles per hour to 55 miles per hour.

3.1.2 East-Side Frontage Roads The frontage roads on the east side of I-19 are primarily two-way roadways with the exception of a one-way frontage road segment between the Rio Rico and Ruby Road interchanges. This one- way operation is located north of the commercial activity centers which are largely served by the Ruby Road interchange. The frontage road system provides access to primarily commercial land uses on the south end of the corridor (particularly in the Ruby Road area) and residential land uses to the north. Speed limits vary widely on the East Frontage Road segments ranging from 25 miles per hour to 55 miles per hour.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 20 I-19 Frontage Road Study January 2008 Working Paper No. 1 TUCSON

EXIT 95

VALENCIA ROAD NOGALES HWY NOGALES

PIMA MINE ROAD EXIT 80

SAHUARITA ROAD EXIT 75 LACANADA DR

CONTINENTAL ROAD EXIT 63 EXIT 63 DUVAL MINE RD

MISSION TWIN BUTTES

CAMINO ENCANTO CALLE TRES

CANOA ROAD EXIT 56

PIMA COUNTY EXIT 48 ARIVACA RD ELEPHANT HEAD ROAD SANTA CRUZ COUNTY AMADO

AGUA LINDA ROAD EXIT 42

EXIT 40 CHAVEZ SIDING ROAD

TUBAC ROAD EXIT 34 TUBAC TUMACACORI

TUMACACORI EXIT 29

PALO PARADO ROAD EXIT 25

PECK CANYON ROAD EXIT 22

PENDLETON DRIVE

EXIT 17 RIO RICO DRIVE (TQPVCIG4QCF5GIOGPVU

RUBY ROAD EXIT 12

COUNTRY CLUB ROAD NOGALES

U.S./MEXICO BORDER

'ZJKDKVÄ Interstate Frontage Road Crossroad

Segment Number

Intersection Control Exhibit 3-2 – Characteristics of West-Side Frontage Road Segments

Segment Segment Limits Two-Way or Speed Limit(s) Segment Comments One-way Mileage Frontage Roads

1 I-19 / Valencia Road TI to Two-way, no No speed limit marked 0.9 This short segment serves a limited 0.9 miles south of TI passing permitted number of businesses (Rinker Materials / Pioneer Landscaping)

3 I-19 / Duval Mine Road TI Two-way, no 25 mph 0.5 Appears to have been recently to 0.5 miles south of Duval passing permitted resurfaced. Frontage road transitions at Mine Road the south end to West Duval Road

6 Continental Road to 0.25 Two-way, Varies between 35 mph and 50 mph: 13.2 Reconstructed at Continental Road miles south of Agua Linda includes passing 35 mph SB, south of Continental Road Traffic Interchange. Road and no-passing 40 mph SB, near Placita Quieta sections Signed for “No Golf Carts” near Placita 50 mph NB, north of Calle Tres Quieta Alamos. 50 mph SB, south of Elephant Head Road 35 mph SB, near Santa Maria Drive 50 mph SB, south of Arivaca Road. 8 North of I-19 / Chavez Two-way includes Varies between 25 mph (at northern terminus) and 55 6.3 North end of this frontage road serves Siding Road TI to south of passing and no- mph: Santa Cruz County Solid Waste Facility Aliso Springs Road (2.2 passing sections 45 mph SB north of Chavez Siding Road miles south of Tubac exit) 25 mph SB near the Santa Cruz County Solid Waste Facility 55 mph SB south of Burro Lane 45 mph SB near Keating Circle/ Kenyon Ranch Rd 45 mph NB near southern terminus of frontage road. 11 0.4 miles north of I-19 / Two-way Varies between 25 mph and 45 mph: 6.3 Part of this frontage road segment is a Palo Parado Road TI to 25 mph SB, north of Palo Parado Road dirt road (south of Palo Parado to Rio Rio Rico Road 30 mph SB, north of Peck Canyon Road Rico Landfill access). There is a large 45 mph SB, south of Tubac Fire Department distance between the frontage road and 35 mph SB at Yavapai Drive mainline between Peck Canyon Road and Circulo Mercado. The distance varies between 300 and 450 feet.

12 South of Rio Rico Road Two-way, Varies between 30 mph and 50 mph: 5.7 The T - intersection with Boulevard Del (Calle Calabasas Road) to primarily with 50 mph SB at Via Pueblo Ray David provides exclusive right and 0.4 miles south of Country passing sections. 30 mph SB near intersection with Boulevard Del Ray left turn lanes on the frontage road. Club Road, south of Al David Harrison Road.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 22 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-3 – Characteristics of East-Side Frontage Road Segments

Segme Segment Limits Two-Way or Speed Limit(s) Segment Comments nt One-way Miles per hour Mileage Frontage Roads

2 North of Duval Mine Road Two-way 1.1 Transitions to Calle de Marzo

4 Segment is south of Duval Two-way 0.3 Small segment of old frontage road that is Road remaining after majority of roadway was abandoned during the Duval Mine Road TI reconstruction.

5 Continental Road to 0.2 Two-way 50 mph 2.0 Missing frontage road segment between miles south of Continental Continental and Canoa is currently under Road design.

7 0.1 mile south of Agua Two-way Varies between 25 mph and 50 mph: 9.0 Missing frontage road segment between Linda Road to .54 miles 35 mph NB , north of Agua Linda Road Continental and Canoa is currently under north of Canoa Road 50 mph NB, approximately MP 20 design. 35 mph NB, south of Canoa Road 25 mph NB, north of Canoa Road 9 0.6 miles north of Chavez Two-way Varies between 25 mph and 55 mph 10.4 Segment 9 has some significant length of Siding Road to 0.34 miles 25 mph paved shoulders that could be used for south of Palo Parado 35 mph NB, north of Palo Parado bicyclists. Clearing of vegetation and interchange 55 mph , south of MP 16 marker smoothing the shoulders would provide 50 mph, NB, north of Santa Gertrudis Lane bike facilities in this area. 45 mph NB, south of Barrio De Tubac 55 mph NB, north of access to Tubac Golf Resort 40 mph NB, south of Chavez Siding Road 10 Peck Canyon Road Two-way 25 mph 0.4 This short segment of frontage road interchange to 0.4 miles transitions to the Peck Canyon Road at south of Peck Canyon Rd the interchange.

13 0.5 miles north of I-19 / Rio Two-way, except 25 mph 6.4 At Rio Rico Rd, frontage road transitions Rico Road Interchange to for one-way 30 mph NB , north of Ruby Road to off-ramp. There also is another frontage Intersection with Grand section north of road segment that intersects Rio RIco Rd Avenue Kipper Street east of the off-ramp. between Rio Rico and Ruby Road At Ruby Rd intersection, medians and interchanges. exclusive turn lanes are provided at a signalized intersection. North of Ruby Rd, frontage road is four lanes for a short distance.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-07).doc 23 I-19 Frontage Road Study January 2008 Working Paper No. 1 3.2 Laneage Nearly all sections of frontage road within the study area allow two-way traffic via a two-lane cross-section, with the exception of the East Frontage Road north of Ruby Road. The frontage road in this area serves numerous warehouses and trucking businesses near the interchange and briefly provides two lanes in each direction near the signalized intersection at Ruby Road. North of Ruby Road, the frontage road transitions to one lane in each direction with a center left turn lane. Further north, approximately 2.4 miles north of the interchange (north of Kipper Street), the roadway transitions to a one-way, one-lane frontage road to the Rio Rico Interchange. 3.2.1 Frontage Road / Interchange Intersections In all cases, the two-way frontage roads intersect crossroads at separate locations from the interchange ramps. Exhibit 3-4 shows the frontage road / ramp configurations at each of the major interchanges with frontage roads. Exhibit 3-5 shows the approximate separation in feet between the ramp and the frontage road intersections. As shown, the majority of the two-way frontage roads are separated by the freeway ramps by less than 600 feet. While this spacing is sufficient in rural areas where volumes are low, traffic operations at the interchanges can be expected to degrade as volumes increase. If signalization is needed at either the freeway ramps or at the frontage roads, traffic signals should be installed at both intersections and synchronized to prevent queuing problems between the intersections. Alternatively, existing two-way frontage roads can be converted to one-way frontage roads. One- way frontage roads are advantageous in that they can merge with freeway ramps, thus eliminating a frontage road / cross street intersection, and resulting in improved operations at the interchange area.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 24 I-19 Frontage Road Study January 2008 Working Paper No. 1 EXIT 95 EXIT 69 TUCSON VALENCIA RD DUVAL MINE RD

VALENCIA ROAD NOGALES HWY NOGALES

EXIT 63 CONTINENTAL RD

EXIT 56 CANOA RD PIMA MINE ROAD

SAHUARITA ROAD

LA CANADA DR

EXIT 48 EXIT 42 CONTINENTAL ROAD ARIVACA RD AGUA LINDA RD DUVAL MINE RD MISSION TWIN BUTTES

CAMINO ENCANTO CALLE TRES

CANOA ROAD

EXIT 34 ELEPHANT HEAD ROAD EXIT 40 TUBAC ROAD ARIVACA RD CHAVEZ SIDING ROAD AMADO

AGUA LINDA ROAD

CHAVEZ SIDING ROAD

EXIT 25 TUBAC ROAD PALO PARADO TUBAC EXIT 29 ROAD TUMACACORI TUMACACORI TUMACACORI

PALO PARADO ROAD

PECK CANYON ROAD

RIO RICO DRIVE

PENDLETON DR

RIO RICO DRIVE +PVGTEJCPIG%QPHKIWTCVKQPU EXIT 22 EXIT 17 PECK CANYON RUBY ROAD ROAD

COUNTRY CLUB ROAD NOGALES

EXIT 12 RUBY ROAD U.S./MEXICO BORDER 'ZJKDKVÄ Exhibit 3-5 – Frontage Road / Ramp Spacing

Interchange West Frontage Road Spacing East Frontage Road Spacing from SB Ramps from NB ramps (Spacing in feet) (Spacing in feet) Valencia Road 940 --- Duval Mine Road 700 470 Continental Road 200 130 from NB on-ramp 155 from NB off-ramp Canoa Road 130 130 Arivaca Road 725 150 Agua Linda Road 180 190 Chavez Siding Road 480 470 Tubac / Aliso Springs 470 470 Tumacacori --- 490 Palo Parado Road 125 180 Peck Canyon Road 190 ---- (frontage road transitions into crossroad) Rio Rico Road 272 390 Ruby Road 350 feet (north side frontage road) 340 160 feet (south side frontage road)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 26 I-19 Frontage Road Study January 2008 Working Paper No. 1 3.3 Traffic Volume Data Traffic volume data was collected on the Interstate 19 frontage roads in September 2007. The daily traffic volumes on the frontage roads vary from less than 100 vehicles per day (at the east frontage road south of Agua Linda Road) to approximately 5,800 vehicles per day on the west frontage road north of Ruby Road. A summary of the traffic count data is provided in Exhibit 3- 6, below. Exhibit 3-6 – 2007 Daily Traffic Volumes

Study Location Segment I-19 East-Side Frontage Road Northbound Southbound Total 5 South of Continental Road 898 1,283 2,181 7 South of Canoa Road 486 552 1,038 7 South of Arivaca Road 270 461 731 7 South of Agua Linda 18 23 41 9 North of Aliso Springs Road 1,281 1,900 3,181 9 South of Aliso Springs Road 516 831 1,347 9 South of Santa Gertudis 369 591 960 13 North of Ruby Road 1,273 1,925 3,198 13 South of Ruby Road 888 1,935 2,823 I-19 West-Side Frontage Road 6 South of Continental Road 2,381 1,283 4,834 6 North of Canoa Road 1,315 1,569 2,884 6 South of Canoa Road 346 504 850 6 North of Agua Linda 105 140 245 8 North of Aliso Springs 333 412 745 8 South of Aliso Springs 132 164 296 11 North of Peck Canyon 1,868 2,521 4,389 11 South of Peck Canyon 1,827 2,633 4,460 12 North of Ruby Road 2,034 3,811 5,845 12 North of Country Club Road 1,683 2,719 4,402

3.4 Frontage Road Level of Service Traffic operations analysis as described in the 2000 Highway Capacity Manual employs a level of service (LOS) analysis grading system to describe the operations of an intersection. In the case of roadway segments, it is quantified by a general capacity based on many factors including directional distribution and number of access points. The LOS grading system quantifies the operating conditions of an intersection or roadway segment in terms of quality of traffic flow and the perception of the motorist. Six levels of service are defined ranging from LOS A to LOS F. LOS A represents the best operating conditions and indicates free-flow conditions with little or no

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 27 I-19 Frontage Road Study January 2008 Working Paper No. 1 delay experienced by motorists. LOS A, B, and C are customarily considered to be acceptable. Moderate delay is noticed by the motorists in LOS D. LOS E and LOS F are generally deemed unacceptable and represent roadways operating at or over capacity (stop and go conditions). ADOT establishes LOS D as the desired criteria for arterial roadways. HCS software package was utilized to approximate the level of service on selected study area frontage road segments. Those segments with the highest traffic volumes were analyzed. The segment level of service analysis helps to identify general capacity issues and serves as a screening tool for problem identification. The planning-level HCM analysis procedures incorporate existing traffic features such as peak hour volumes, peak hour factors, and directional distribution and roadway design features such as percent passing zones, access points per mile, terrain and segment lengths. The analysis (Exhibit 3-7) of selected frontage road segments indicates that all of the frontage road segments operate at LOS C or better during peak periods.

Roadway Segment Level of Service West Frontage Road, Canoa to Elephant Head A West Frontage Road, Continental to Canoa B West Frontage Road, Peck Canyon to Rio Rico C West Frontage Road, Ruby Road to North End of C Segment West Frontage Road, Aliso Springs to Chavez A Siding Road

3.5 Access Management A field survey of study area frontage roads was conducted in July 2007. Access management conditions including existing driveways and access points along the entirety of the I-19 frontage roads were documented. Access density along with additional geometric and operational data is shown in Exhibit 3-8. Driveway Openings: There are a total of 417 access points along the 63.42 miles of frontage road that exists within the study area. This equates to approximately 6 to 7 access points per mile, or approximately one access point for every 800 feet of frontage road. The frontage roads segments with a density greater than this average are summarized in Exhibit 3-7, below:

Exhibit 3-7 – Frontage Roads with Greater Than Average Number of Access Points

West Frontage Road Segments with Greater than East Frontage Road Segments with Greater Average Number of Access Points than Average Number of Access Points

Segment 3 - Duval Mine Road TI to 0.5 miles south Segment 2 - North of Duval Mine TI of TI Segment 11 - 0.4 miles north of I-19 / Palo Parado Segment 9 - South of Palo Parado interchange to Road TI to Rio Rico Road 0.6 miles north of Chavez Siding Road Segment 13 - Intersection with Grand Avenue to 0.5 miles north of I-19 / Rio Rico Road Interchange

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 28 I-19 Frontage Road Study January 2008 Working Paper No. 1 As traffic volumes increase on the frontage roads, higher access point densities could lead to higher accident rates, particularly at locations where speeds are high.

Supporting Alternate Transportation Network: Another access consideration is the absence or presence of a supporting alternate transportation network that parallels the frontage road system. The lack of a supporting alternate roadway network increases reliance on the frontage roads. A supporting road network is particularly important in areas where the distance between interchanges is large. Frontage roads that are located in areas where the distance between interchanges is great increases the dependency on the frontage roads.

In addition, the lack of alternate routes makes conversion of frontage roads from two-way to one way to improve operations infeasible.

Areas with a supporting alternate road system are the Green Valley area (with exception of the East Frontage Road south of Calle Torres Blancas) and between Peck Canyon Road and Rio Rico Road area. Other areas have limited or no supporting road systems.

Even in areas with a supporting road system, it should be noted that the lack of a continuous frontage road system through Sahuarita has the potential to place/detour substantial traffic volume obligations on local Sahuarita streets. It should be recognized that the Town has certain limitations to handling traffic on Rancho Sahuarita Boulevard and a weight restricted bridge crossing on Pima Mine Road leading to Nogales Highway.

A summary of the distance between interchanges is summarized in Exhibit 3-9.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 29 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-8 – Access Management Summary

Segment Limits Speed Is there a backup roadway system in place in this area? Length # Access Density Segment Direction Center Median Terrain Limit Observations (mi) Points per mile (mph)

I-19 / Valencia TI to 0.3 No 1 miles south of TI West Side 0.88 3 3.4 None Flat 25 Access to Rinker Materials Valencia Plant

North of Duval Mine TI to None At the north end there is a supporting road system. Immediately north of the interchange there is no 2 Duval Mine Road TI East Side 1.08 8 7.4 Flat 25 Access to residential and shopping center supporting road system.

Duval Mine Road TI to 0.5 None West Duval Road also provides access in this area (the frontage road transitions to this street) but the 3 miles south of TI West Side 0.46 4 8.7 Flat 25 Access to commercial frontage road provides major access.

South of Duval Mine Road Limited backup system connects to East Duval Road which connects to Abrego Drive, a north-south parallel 4 East Side 0.28 1 3.6 None Flat 25 Access to residential route.

Continental Road TI to 0.2 There is a supporting road system in this area. Access to private homes, post office, and 5 miles south of Continental East Side 2.92 9 3.1 None Flat 50 water tank power sub station Road TI

Continental Road TI to Camino Del Sol provides a supporting parallel road system between Continental Road and Canoa Ranch 0.25 miles south of Agua Access to Amado commercial sites, private Drive. South of Canoa Ranch Drive, there is no supporting system, except near the Arivaca Interchange 6 West Side 13.27 53 4.0 None Flat 40-50 Linda TI residences, and Canoa Hills CG (Arivaca Road). Between Arivaca TI and Agua Linda TI, there is not a supporting road system on the west side of I-19.

0.54 miles north of Canoa There is no supporting roadway system in this area. Access to private residences / ranches, 7 Road TI to 0.1 miles south East Side 9.07 33 3.6 None Flat 35-50 Amado rural commercial of Agua Linda Road

North of Chavez Siding TI Supporting road system north of Tubac TI. Access to private residences, ranches, and 8 to 2.2 miles south of West Side 6.30 35 5.6 None Rolling Hills 45-55 Santa Cruz County Solid Waste Facility Tubac TI

South of Palo Parado No supporting road system except for a short segment of Old Nogales Highway, Apache Lane, and some interchange to 0.6 miles road system near the Tubac Road interchange. 9 East Side 10.39 93 9.0 None Flat 25-55 north of Chavez Siding Access to private residences, Tubac, small Road business, and Tumacacori National Park South of Peck Canyon No supporting road system. 10 Road to I-19/ Peck East Side 0.41 1 2.4 None Flat 25 Access to Peck Canyon with a Bus stop Canyon Road interchange

0.4 miles north of Palo Between Peck Canyon and Rio Rico there is a supporting road system. Near the Peck Canyon interchange, Parado TI to Rio Rico the frontage road provides access to a number of schools including San Cayetano Elementary School, Access to various commercial and residential 11 Road West Side 6.29 80 12.7 None Mild Slopes 25-45 Mountain View Elementary School and Rio Rico High School. home sites. Provides access to three schools Between Palo Parado and Peck Canyon, there is some supporting road system near the Peck Canyon area. Provides only access to Rio Rico Landfill and material businesses

South of Rio Rico TI to 0.4 The west frontage road is discontinuous in this area. Between Rio Rico and Ruby Road there is a supporting miles south of Country Rolling Access to Rio Rico residential subdivisions, roadway system at the south end, near the Rio Rico interchange there are planned platted lots, with a future 12 West Side 5.65 23 4.1 None 30-50 Club Road TI Hills commercial warehouses, and a golf course supporting roadway system. Santa Cruz County has indicated that connectivity is needed in this area for circulation, emergency response, and to reduce the number of vehicle miles traveled.

Intersection with Grand Some supporting road system to the south, but north of Ruby Road, the frontage road provides the main Two-way Ave. to 0.5 miles north of access to numerous produce warehouses and other commercial establishments. continuous left Access to private homes, produce distributors, 13 I-19 / Rio Rico Rd East Side 6.42 74 11.5 Mild Slopes 25-30 turn lane & One- and industrial / commercial sites Interchange way (0.75 mi)

TOTAL 63.42 417

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 30 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-9 – Distance Between Interchanges

From Interchange To Interchange Distance Between Frontage road at Interchanges (miles ) Interchange? I-10 Ajo Way 1.58 no Ajo Way Irvington Road 1.01 no Irvington Road Valencia Road 2.02 no Valencia Road San Xavier Road 1.90 Yes, a short frontage road on the west side San Xavier Road Papago Road 2.52 no Papago Road Pima Mine Road 4.67 no Pima Mine Road Sahuarita Road 3.01 no Sahuarita Road Duval Mine Road 3.58 Yes, a segment on the east side Duval Mine Road Esperanza Boulevard 2.47 Yes, discontinuous segments Esparanza Boulevard Continental Road 1.31 no Continental Road Canoa Road 4.58 Yes, discontinuous on the east side Canoa Road Arivaca Road 4.89 Yes, both sides Arivaca Road Agua Linda 3.48 Yes, both sides Agua Linda Chavez Siding Road 1.70 Yes, discontinuous segments Chavez Siding Road Tubac Road 3.21 Yes, both sides Tubac Road Tumacacori 3.48 Yes, discontinuous segments Tumacacori Palo Parado 2.59 Yes, discontinuous segments Palo Parado Peck Canyon Road 1.69 Yes, discontinuous segments on east side Peck Canyon Road Rio Rico Drive 3.06 Yes, discontinuous segments on east side Rio Rico Drive SR 289 / Ruby Road 3.17 Yes, both sides SR 289 / Ruby Road Exit 8 2.41 Yes – discontinuous Exit 8 SR 189 / Mariposa Road 2.35 no SR 189 / Mariposa Road Western Avenue 1.78 no Western Avenue Begin I-19 1.18 No

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 31 I-19 Frontage Road Study January 2008 Working Paper No. 1 3.6 Existing Traffic Control Currently, traffic control on the I-19 frontage roads is a mix of signals and stop signs at the various traffic interchanges located along the extent of the interstate. There are a total of 27 traffic controlled intersections along the frontage road system of which 24 are stop controlled. The three signal controlled intersections are listed below: I-19 @ Valencia Rd Traffic Interchange (west-side frontage road) I-19 @ Continental Rd Traffic Interchange (west-side frontage road) I-19 @ Ruby Rd Traffic Interchange (east-side frontage road)

3.7 Crash Summary Crash data was obtained for I-19 frontage roads for the five-year period beginning on January 1, 2001 and ending on December 31, 2005. Within the five year period from 2001 through 2005, a total of 246 crashes occurred on the thirty frontage road segments and sub-segments. The crash data was analyzed for the frontage road segments defined earlier in this chapter. In some cases, longer segments of frontage road were sub-divided in order to determine crash trends between major crossroads. A summary of the crash data for the West Frontage Road segments is shown in Exhibit 3-10 and for the East Frontage Road segments on Exhibit 3-11. Crash data was analyzed based on the manner of collision and injury severity. Crash rates and severity indices were calculated for each frontage road segment. The crash rate is defined as the number of crashes per million entering vehicles (mev) per year. The severity index provides a numerical value to the segment related to the severity of the crashes – the higher the number, the more severe the injuries. General findings of the analysis are provided below: The total number of crashes increased from 2001 to 2002, decreased from 2002 to 2003, nearly doubled from 2003 to 2004, and decreased again from 2004 to 2005. The highest number of crashes occurred in 2004 with 69 crashes accounting for 28 percent of all crashes. The predominant crash type for the frontage roads is single vehicle crashes, accounting for 35 percent of all crashes. Rear end crashes and angle crashes are the next most common types representing 24 percent and 18 percent respectively. Combined, these three crash types represent 77 percent of all crashes. Of the 246 total crashes over the five year period, 155 of them resulted in no injury, accounting for 63 percent of the total crashes. 35 crashes resulted in non-incapacitating injuries and another 32 resulted in possible injury. There were 10 crashes resulting in incapacitating injuries and 9 crashes were of unknown severity. Of the 5 reported fatalities, 3 of them occurred on the west frontage road between Continental Road and Duval Mine Waterline Road. Two of these fatal crashes included left-turning vehicles. The east-side frontage road segment from Continental Road to 0.2 miles south of Continental Road has the highest number of crashes with a total of 30 crashes over the five year period. The number of reported crashes for this segment decreased from 2001 to 2002 then remained about the same from 2002 to 2005 with an average of 6 crashes per year. Road segments with no crashes in the 5-year period were:

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 32 I-19 Frontage Road Study January 2008 Working Paper No. 1 West Frontage Road Segments with No Crashes, East Frontage Road Segments with No 2001-2005 Crashes 2001-2005

Canoa Road to Arivaca Road 0.6 miles north of Chavez Siding Road to Chavez Siding TI

Arivaca Road to Agua Linda Road South of Palo Parado TI Aliso Springs Road to 2.2 miles south of Tubac TI

0.4 miles north of Palo Parado TI to Palo Parado TI

The road segment with the lowest crash rate (of segments having crashes) was on the west- side frontage road between Peck Canyon Road and Rio Rico Road, with a five year crash rate of 0.12 c/mev. The segment with the highest crash rate was located on the east-side frontage road segment between Agua Linda Road to 0.1 miles south of Agua Linda Road. While the rate was high (83.53 c/mev), this location only had one crash in the five year period. The rate was computed to be relatively high because of the short length of the segment. Other segments with relatively high crash rates were located on the east-side frontage road north of Canoa Road (crash rate of 3.91 c/mev ) and from the Continental traffic interchange to 0.2 miles south of the traffic interchange (2.58 c/mev). This later segment also had the highest number of crashes (30) in the five year period. The average severity index for all segments is 1.60. The severity indices range from 0.50 occurring on the west frontage road Segment 1 (I-19 / Valencia Road TI to 0.9 miles south of I-19/ Valencia Road traffic interchange ) to 3.40 occurring on west-side frontage road Segment 8 (north of Chavez Siding Road TI). There are nine segments with severity indices over the average and fifteen below the average.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 33 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-10 – Crash Data Summary – West-Side Frontage Roads

Segment 3 – Segment 1- I-19 / Duval Mine I-19 / Valencia Road TI to 0.5 Segment 8 - North of I-19 / Chavez Siding Road TI Road TI to 0.9 miles south of Segment 6 – Continental Road to 0.25 miles south of to south of Aliso Springs Road (2.2 miles south of Segment 11- 0.4 miles north of I-19 / Segment 12- South of Rio Rico Road (at Calle Calabasas Road) to miles south of TI Duval Mine Road Agua Linda Road Tubac exit) Palo Parado TI to Rio Rico Road 0.4 miles south of Country Club Road , south of Al Harrison Drive

Sub-segments Sub-segments Sub-segments Sub-segments 0.4 miles Palo Chavez north of I- Parado Peck Arivaca start of Siding Rd 19 / Palo Rd to Canyon South of Rio Rico Continental Canoa Rd Rd to segment to to Aliso Parado TI Peck Rd to Road (at Calle Rd to Calle Calle Tres to to Arivaca Agua Chavez Springs Aliso Springs Rd to Palo Canyon Rio Rico Calabasas Road) to Ruby Rd to 0.4 miles south of Country Tres Canoa Rd Rd Linda Rd Siding Rd Rd to end of segment Parado Rd Rd Road Ruby Rd Club Road, south of Al Harrison Drive Single Vehicle 2 2 7 5 0 0 2 0 0 0 0 1 5 8 Sideswipe (same) 0 0 1 1 0 0 0 0 0 0 0 0 1 1 Sideswipe (opposite) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 Angle 0 5 9 0 0 0 0 1 0 0 1 0 2 1 Left Turn 0 5 3 0 0 0 0 1 0 0 0 0 2 2 Rear End 0 13 5 2 0 0 0 0 0 0 1 1 5 7 Head on 0 0 0 1 0 0 0 0 0 0 0 1 0 1 Backing 0 0 0 0 0 0 0 0 0 0 1 0 1 1 Other 0 0 1 0 0 0 0 0 0 0 1 0 0 0 Non-Contact (no mc) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 U-Turn 0 1 0 0 0 0 0 0 0 0 0 0 0 0 Total 2 26 26 9 0 0 2 2 0 0 4 3 17 21

No Injury 1 18 14 3 0 0 1 1 0 0 2 2 13 18 Possible Injury 0 2 4 0 0 0 0 0 0 0 1 0 2 0 Non- Incapacitating 0 4 5 3 0 0 0 1 0 0 1 1 2 2 Incapacitating 0 1 0 1 0 0 0 0 0 0 0 0 0 1 Fatal 0 0 3 1 0 0 1 0 0 0 0 0 0 0 Unknown 1 1 0 1 0 0 0 0 0 0 0 0 0 0

2001 0 1 3 1 0 0 0 0 0 0 0 0 2 1 2002 0 7 2 0 0 0 1 0 0 0 1 0 0 1 2003 1 2 4 2 0 0 0 0 0 0 1 0 4 4 2004 1 11 10 4 0 0 1 0 0 0 1 0 6 9 2005 0 5 7 2 0 0 0 2 0 0 1 3 5 6 Crash Rate N/A N/A 0.65 0.34 0.00 0.00 1.75 0.46 0.00 0.00 0.29 0.12 0.67 0.79 Severity Index 0.50 1.38 1.90 2.29 - - 3.40 1.50 - - 1.50 1.33 1.24 1.32

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (11-21-07).doc 34 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-11 – Crash Data Summary – East-Side Frontage Roads

4 – Duval Mine 5 – Continental Segment 10- I-19 Segment 2 – North of Road TI to South Road to 0.2 miles / Peck Canyon TI Segment 13 – 0.5 miles north of I-19 / Duval Mine Road to of Duval Mine south of Segment 7- 5.4 miles north of Canoa Road to 0.1 Segment 9 – 0.6 miles north of Chavez Siding Road to south of Palo to south of Peck Rio Rico Interchange to Intersection Duval Mine Road TI Road Continental Road miles south of Agua Linda Road Parado Interchange Canyon Road with Grand Avenue

Sub-segments Sub-segments Sub-segments 0.6 miles north Chavez Canoa Rd Elephant Agua of Chavez Siding Rd Aliso Santa Palo start of start of to Head Rd to Linda Rd Siding Road to to Aliso Springs Rd Gertrudis to Parado Rd segment Rio Rico segment to Elephant Agua to end of Chavez Siding Springs to Santa Palo Parado to end of to Rio Rd to Ruby Rd to end Canoa Rd Head Rd Linda Rd segment Rd Rd Gertrudis Rd segment Rico Rd Ruby Rd of segment Single Vehicle 2 2 11 1 5 1 0 0 3 6 1 0 1 2 8 11 Sideswipe (same) 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 1 Sideswipe (opposite) 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 Angle 1 0 4 1 1 1 0 0 2 2 0 0 0 0 8 6 Left Turn 5 0 2 0 0 0 0 0 2 1 0 0 0 0 1 0 Rear End 0 3 10 0 0 1 1 0 0 0 0 0 0 0 5 5 Head on 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 Backing 0 0 1 0 0 0 0 0 0 0 0 0 0 1 3 0 Other 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 Non-Contact (no mc) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 U-Turn 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 8 6 30 4 6 3 1 0 7 10 1 0 1 3 28 26

No Injury 6 3 20 3 3 1 0 0 4 3 1 0 0 2 17 19 Possible Injury 2 2 4 1 1 1 0 0 1 0 0 0 0 0 6 5 Non- Incapacitating 0 1 4 0 0 1 1 0 1 4 0 0 1 1 1 1 Incapacitating 0 0 2 0 1 0 0 0 1 2 0 0 0 0 1 0 Fatal 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Unknown 0 0 0 0 1 0 0 0 0 1 0 0 0 0 3 1

2001 2 1 9 0 1 1 0 0 2 2 1 0 0 0 5 3 2002 2 4 6 1 1 0 0 0 2 1 0 0 1 3 5 9 2003 0 1 5 1 0 0 0 0 1 1 0 0 0 0 7 4 2004 3 0 5 2 3 0 0 0 1 3 0 0 0 0 3 6 2005 1 0 5 0 1 2 1 0 1 3 0 0 0 0 8 4 Crash Rate 2.58 3.91 0.65 0.65 83.53 0.00 0.37 1.17 0.22 0.00 0.93 1.49 1.93 Severity Index 1.25 1.50 1.59 1.25 1.80 1.67 2.00 - 1.97 2.26 1.00 - 2.00 1.33 1.31 1.19

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (11-21-07).doc 35 I-19 Frontage Road Study January 2008 Working Paper No. 1 3.8 Transit Services This section describes public transit services that are operating on, or in the vicinity of the I-19 frontage roads. These services all operate in Pima County. Currently there are no forms of public transit operated by Santa Cruz County or by any of the jurisdictions within the county. There are a few privately owned transportation companies in Santa Cruz County that primarily provide service from the U.S. / Mexico border to employment locations.

3.8.1 Sun Tran Sun Tran is the largest public transit provider in the Tucson metropolitan region. Based on information from the Pima Association of Governments, Sun Tran operates a network of 38 local and express bus routes using a fleet of 189 full-size buses. All vehicles are fully accessible to persons with disabilities and are equipped with bike racks for multi-modal connections. While Sun Tran does not operate on any of the I-19 frontage roads, it does serve several areas within the project study area, specifically on Valenica Road, Irvington Road, and Ajo Way. The Sun Tran system runs seven days a week, with service throughout the City of Tucson, South Tucson, and parts of Marana and unincorporated Pima County. In 2003, Sun Tran provided over 15 million passenger trips throughout the Tucson metro area. A map of Sun Tran routes in the I-19 Study area is provided in Exhibit 3-12. The Sun Tran system is administered by the City of Tucson, which owns all equipment and facilities, where the day-to-day operations are conducted by a private management firm and employee group.

3.8.2 Pima County Rural Transit Pima Rural Transit provides fixed route transit service to residents living in rural areas of Pima County. The system is designed to transport residents to jobs, major shopping centers, and medical facilities within the Tucson metro area by connecting with the Sun Tran system at major transfer centers. There are a total of six routes serving northwest Marana, Tucson Estates, the San Xavier area, the towns of Sells and Ajo, and towns of Sahuarita and Green Valley. Service is limited to regular business hours Monday thru Friday. The San Xavier Route also runs on Saturday. In 2006-2007 Pima County Rural Transit provided 104,326 passenger trips. The Sahuarita / Green Valley and the San Xavier routes serve areas within the vicinity of the project study area. One in particular, the Green Valley Circulator Loop, utilizes the West I-19 Frontage Road from Continental Road to Camino Encanto. Pima Rural Transit is administered by the Pima County Department of Transportation. Service is provided through individual multi-year contracts with private operators. It should be noted that the Regional Transportation Authority has funded construction of a park and ride lot near the I-19 Frontage Road / Continental Road intersection (westside of I-19).

3.9 Bicycle Facilities “ADOT Traffic Engineering Policies, Guidelines, and Procedures, March 2002” Section 1030, states that bicycles are permitted to operate on all State highways, including controlled access highways, except where an equally suitable route is available. As it pertains to the study area, bicycles are prohibited on I-19 from I-10 to Duval Mine Road [(I-19 MP 43.24 (km 69.59) (Duval Mine Road) to MP 63.09 (Jct. I-10)]. In this area, Nogales Highway and La Canada Drive serve as alternative routes.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 36 I-19 Frontage Road Study January 2008 Working Paper No. 1 Bicycles are permitted on the remaining extent of I-19 (Duval Mine Road to Nogales). On the frontage road system, there are no restrictions in use. Typically signs and markings are not provided for bicyclists on the frontage roads, such as “Share the Road” signs. Paved shoulders are not provided along the majority of the frontage road system. Based on field observations, usable paved shoulders (greater than one foot of pavement beyond the lane line) are limited to the following locations: West Frontage Road o Approximately 8-foot shoulders (both sides) south of Arivaca Road o Approximately 6- to 7-foot shoulders (both sides) north of Rio Rico Drive East Frontage Road o Approximately 8-foot shoulders (both sides) south of Arivaca Road o Approximately 8-foot shoulders (both sides) south of Tubac Road o Approximately 6-foot shoulder (northbound) and 2-foot shoulder (southbound) north of Ruby Road o Approximately 6-foot shoulder (northbound) and 2-foot shoulder (southbound) south of Ruby Road The design concept currently being developed for the East frontage road from Continental Road to Canoa Road includes shoulders that are 4-feet wide. The Santa Cruz County Bicycle Advocate Committee has developed a Master Plan for Multi-use lanes. The plan includes three elements: o Projects needed for connectivity o Projects needed for urgent safety, and o Projects needed for future growth – these are projects that are needed to maintain a high quality of life as population grows. There are I-19 frontage road projects recommended in the plan, as described in Exhibit 3-13. There is currently a proposed transportation enhancement project that is currently applying for funding. It is located at the intersection of I-19 and Esperanza Boulevard. The Esperanza Boulevard/I-19 Bicycle and Pedestrian Enhancement project would provide new bicycle lanes, sidewalks, benches, and shade landscaping on Esperanza Boulevard at the I-19 interchange. This project will link existing north-south bike lanes on La Cañada Drive west of I-19 to Abrego Drive east of I-19, and will provide ADA- compliant sidewalks through the underpass. It provides the third of four possible east-west bike routes in the community and will increase pedestrian safety and access, particularly for persons with disabilities. It opens a route for the residents to more safely walk and bike to the shopping and recreational areas on both sides of I-19, including to several Green Valley Parks and Recreation health and recreation centers. The project extends 0.4 miles through the underpass, includes construction of 6-foot wide bike lanes and 5-foot wide sidewalks that comply with ADA standards, and installation of shade landscaping and benches to enhance the corridor and to improve the walking and cycling environment.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 37 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-13 – Summary of Frontage Road Multi-Use Lane Recommendations from the Santa Cruz Valley Bicycle Advocate Committee

Multiuse Lanes Needed for Future Growth Project Location Length Construction (miles) West Frontage Road Calle Tres – Canoa 0.7 Add paved shoulders with road improvements Tubac East Frontage Chavez Siding to Add paved shoulders or separated path Road Tumacacori West Frontage Road Continental – Calle Tres 5.1 Add paved shoulders when road reconstructed Tubac West Frontage Chavez Siding to Tubac Add paved shoulders Road I-19 Frontage roads Canoa Exit to Amado 6.0 Add paved shoulders with road improvements Multiuse Lanes Needed for Future Growth – Projects Underway East Frontage Road Continental to Canoa 4.4 Add paved shoulders when connecting Road east frontage road.

3.10 Maintenance of the Frontage Road System The maintenance of the frontage roads is currently the responsibility of the Arizona Department of Transportation, Tucson District, with the exception of the following segments: The West I-19 Frontage Road between Rio Rico Road and Peck Canyon Road is the responsibility of Santa Cruz County, not ADOT. A segment of the East Frontage Road, north of the Duval Mine Road TI (ADOT maintains the frontage road to approximately 0.10 mile north of the interchange, and the Town of Sahuarita maintains it further north beyond that point).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 38 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 3-12 – Sun Tran Bus Routes within I-19 Frontage Road Study Area

Source: Suntran

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 39 I-19 Frontage Road Study January 2008 Working Paper No. 1 3.11 Neighborhood Electric Vehicles Neighborhood electric vehicles (NEV) (e.g., golf carts), are utilized by a relatively significant portion of the population within the study area, particularly near retirement communities in Green Valley and Sahuarita. Arizona revised statutes describe conditions under which NEV’s may be operated on public roads. The golf carts used for transportation in Green Valley are typically licensed and road legal. Arizona Revised Statutes describing golf cart and electric vehicle use are summarized below:

Arizona Revised Statutes (ARS) 28-101 includes definitions of "golf cart" and "neighborhood electric vehicle" (refer to http://www.azleg.state.az.us/ars/28/00101.htm):

23. "Golf cart" means a motor vehicle that has not less than three wheels in contact with the ground, that has an unladen weight of less than one thousand eight hundred pounds, that is designed to be and is operated at not more than twenty-five miles per hour and that is designed to carry not more than four persons including the driver. and 35. "Neighborhood electric vehicle" means a self-propelled electrically powered motor vehicle to which all of the following apply:

(a) The vehicle is emission free.

(b) The vehicle has at least four wheels in contact with the ground.

(c) The vehicle complies with the definition and standards for low speed vehicles set forth in federal motor vehicle safety standard 500 and 49 Code of Federal Regulations sections 571.3(b) and 571.500, respectively. Based on a search of Title 28, it seems to me that as long as a golf cart -- defined as a type of motor vehicle -- is registered with MVD (http://www.azleg.state.az.us/ars/28/02153.htm), it may be operated on highways (note that this section does not apply to, "a golf cart used in the operation of a golf course or only incidentally operated or moved on a highway").

(http://www.azleg.state.az.us/ars/28/00966.htm): 28-966. Neighborhood electric vehicles; speed; restrictions

A. A neighborhood electric vehicle shall not be operated at a speed of more than twenty-five miles per hour.

B. A neighborhood electric vehicle shall not be driven on a highway that has a posted speed limit of more than thirty-five miles per hour. This subsection does not prohibit a neighborhood electric vehicle from crossing a highway that has a posted speed limit of more than thirty-five miles per hour at an intersection.

C. A neighborhood electric vehicle shall have a notice of the operational restrictions applying to the vehicle permanently attached to or painted on the vehicle in a location that is in clear view of the driver.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 40 I-19 Frontage Road Study January 2008 Working Paper No. 1 4. ENVIRONMENTAL OVERVIEW

4.1 Purpose of an Environmental Overview The environmental overview describes the existing social and environmental conditions along the I-19 corridor in Pima and Santa Cruz Counties and identifies potential environmental concerns for future development of the I-19 Frontage Roads within the planning area. Information presented within this environmental analysis is based on the existing data sources from local, county, state, and federal agencies. This analysis is not intended to meet the requirements of the National Environmental Policy Act (NEPA).

4.1.1 Environmental Conditions Study Area For the purpose of the environmental overview the study area for the I-19 Frontage Road is defined as a 500 foot (ft) buffer of the I-19 right-of-way (R/W), from the I-10 Junction in Tucson, Arizona, to the United States/Mexico border at Nogales, Arizona. The environmental conditions study area is within the eastern portion of Pima County, Arizona, and the western portion of Santa Cruz County, Arizona.

4.2 Social and Environmental Opportunities and Constraints This environmental overview contains documentation and evaluation of the land-use within the study area, the socioeconomic environment, physical and natural environmental character, cultural resources, and section 4(f) resources in the study area. Existing environmental conditions within the study area have been evaluated to identify potential “fatal flaws”, obstacles, issues, and sensitive areas for future improvements. This analysis also addresses surveying, permitting, and agency coordination requirements that would need to be addressed in future studies prepared in accordance with NEPA.

4.2.1 Land Jurisdiction and Ownership Land jurisdiction refers to the authority to regulate land uses. Land ownership is identified as public or private ownership. The study area contains property within the western unincorporated portion of Santa Cruz County and the southeastern unincorporated portion of Pima County, as well as land areas incorporated into the City of Tucson, the City of Sahuarita, and the City of Nogales. Unincorporated areas dominate the central and southern portion of the study area with the incorporated Tucson land area occupying the northern most portion of the study area. The dominant unincorporated areas of Pima and Santa Cruz Counties are made up of private land ownership, State Trust land, and the San Xavier Indian Reservation. Land ownership is shown graphically in Exhibit 4-1. State Trust Land is located in the following five general areas: 1. Approximately 8 miles north of Milepost 0 (Nogales), east side 2. Approximately 18 miles north, between Rio-Rico and Tumacacori-Carmen, west side; 3. Between Tubac and Amado, west side; 4. Near the intersection of I-19 with Nogales Highway , in the Town of Sahuarita, east side; and 5. Between Sahuarita and Pima Mine Road, in the Town of Sahuarita, east side

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 41 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-1 – Land Jurisdiction and Ownership

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 42 I-19 Frontage Road Study January 2008 Working Paper No. 1 The I-19 Frontage Road Study Area is located within 20,000 feet (ft) of a public-use airport identified as the Tucson International Airport (KTUS). The closest runway on KTUS is located within 10,000 ft of the project area. KTUS is open to the public and consists of three runways. Runway 11L/29R is 10,961 ft in length, runway 11R/29L is 8,408 ft in length, and runway 3/21 is 7,000 ft in length. All runways at KTUS exceed 3,200 feet, therefore notification to the FAA Administrator is required if construction operations within a 20,000 ft radius of KTUS exceed a 100:1 slope equation, based upon guidance standards as stipulated in 14 CFR Part 77, Objects Affecting Navigable Airspace, and explained in the Federal Aviation Administrator (FAA) Advisory Circular AC 70/7460-2K.

4.2.2 Socioeconomic Conditions Discussion of the socioeconomic environment of the study area includes an overview of the demographic composition of the area. Title VI of the Civil Rights Act of 1964 and related statutes assure that individuals are not excluded from participation in, denied the benefit of, or subjected to discrimination under any program or activity receiving federal financial assistance on the basis of race, color, national origin, age, sex, and disability. Executive Order (EO) 12898, Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations, issued February 11, 1994, requires that federally funded projects identify and address any disproportionately high and adverse human health and environmental effect on minority and low-income populations. The EO is a reaffirmation of the principles of the Title VI and adds the consideration of low-income to the minority, disabled, female, and elderly populations. The demographic composition of the study area was calculated using the United States Census Bureau, Census 2000 data sets. Census tracts (CT) and the block groups (BG) within these census tracts are large, relatively permanent statistical subdivisions that do not cross county boundaries. The size of the census tracts varies widely, depending on the density of settlement. Census tracts are delineated with the intention of being maintained over a long time, allowing statistical comparisons from census to census. Block groups are geographic subdivisions of census tracts; their primary purpose is to provide a geographic summary unit for census tract data. Each census tract contains a minimum of one block group and may have a maximum of nine block groups. For the purposes of this analysis, the demographic composition is limited to census tracts. The study area lies within a total of seventeen (17) census tracts; twelve (12) census tracts are within Pima County, Arizona and five (5) census tracts are within Santa Cruz County, Arizona. The boundaries of some census tracts extend beyond the study area and therefore depict the demographic characteristics for an area greater than the study area. The exact population and demographic characteristics of the I-19 Frontage Road study area may vary from the represented census tract data; continued evaluations at the block group level of analysis could provide a less varied representation of the demographic characteristics within the I-19 Frontage Road study area. It is also important to note that Tucson has the potential to experience significant seasonal changes in resident population, because many winter-only visitors temporarily populate Tucson and the surrounding communities. The seventeen (17) census tracts within the environmental conditions study area contain a total of 75,140 people (2000 Census).

4.2.2.1 Title VI Populations EO 12898 requires that federally funded projects identify and address any disproportionately high and adverse human health effects from environmental impacts on minority and low-income people. The United States Department of Transportation (USDOT) Order 5610.2 and the United States Census Bureau defines a racial minority person as:

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 43 I-19 Frontage Road Study January 2008 Working Paper No. 1 Black (a person having origins in any of the black racial groups of Africa); Hispanic (a person of Mexican, Puerto Rican, Cuban, Central or South American, or other Spanish culture or origin, regardless of race); Asian (a person having origins in any of the original peoples of the Far East, Southeast Asia, the Indian subcontinent, or the Pacific Islands); American Indian and Alaskan Native (a person having origins in any of the original people of North America and who maintains cultural identification through tribal affiliation or community recognition); Native Hawaiian or Other Pacific Islander (a person having origins in any of the original peoples of Hawaii, Guam, Samoa, Tonga, Chamorro, Fiji, or other Pacific Islands).

Federal Highway Administration (FHWA) Order 6640.23 defines disproportionately high and adverse effect on minority populations as an adverse effect that (1) is predominantly borne by a minority population; or (2) will be suffered by the minority population and is appreciably more severe or greater in magnitude than the adverse effect that will be suffered by the non-minority population and/or the non-low-income population. For purposes of the socioeconomic analysis for minority populations, disproportionate adverse impacts to minority populations is likely to occur when the minority population is either (1) 50 percent of the total population of that census tract or (2) is more than double the percentage of the respective minority population within the comparative counties. Within the study area the majority of the total population is Hispanic or Latino and comprises 62.2 percent of the population, with a total minority population of 67.6 percent (shown in Exhibit 4-2). The total minority population and the total Hispanic population within the study area are both greater than 50 percent of the total population for the study area, indicating the potential of disproportionate adverse impacts occurring to the minority populations. The total American Indian and Alaska Native population at 3.1 percent is higher than the percentage within Pima County and more than double the percentage within Santa Cruz County. However, with the exception of the Hispanic and American Indian/Alaska Native populations, no other individual minority groups within the total study area is greater than 50 percent or more than double the percentage for Pima County or Santa Cruz County. When analyzing individual census tracts within the study area, a total of twelve (12) census tracts (CT 23, CT 24, CT 25.01, CT 39.01, CT 39.02, CT 39.03, CT 9409, CT 9961.01, CT 9961.02, CT 9962, CT 9964.01, and CT 9964.02) indicated minority populations with the potential to result in disproportionate adverse impacts (See Exhibit 4-2 and Exhibit 4-3, Socioeconomic / Census Tract Information - Race). The shaded numbers in Exhibit 4-2 indicate the twelve (12) census tracts with percentages of minority populations that exceed 50 percent of the total population within the census track, or are more than double the percentage of the minority population within Pima or Santa Cruz County.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 44 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-2 – Racial and Ethnic Demographics of the Study Area Population

Population of One Race / Not Hispanic or Latino* Population Area/ Native of Two or Hispanic American Total Census Total Hawaiian More or Latino* Black or Indian White and Other Minority Tract Population African and Asian Races/ Not of Any Other Population (CT) American Alaska Hispanic Race Pacific Native or Latino* Islander Pima 517,982 23,047 22,640 16,375 968 1,022 13,851 247,861 325,764 843,746 County 61.4% 2.7% 2.7% 1.9% 0.1% 0.1% 1.7% 29.4% 38.6% Santa 6,626 44 57 296 8 113 196 31,041 31,755 38,381 Cruz Cnty 17.2% 0.1% 0.2% 0.8% >0.1% 0.3% 0.5% 80.9% 82.7% 497 79 380 80 0 0 52 4,402 4,993 CT 23 5,490 9.1% 1.4% 6.9% 1.5% 0.0% 0.0% 0.9% 80.2% 90.9% 461 7 276 4 0 0 14 5,388 5,689 CT 24 6,150 7.5% 0.1% 4.5% 0.1% 0.0% 0.0% 0.2% 87.6% 92.5% 1,271 295 171 38 0 2 48 3,802 4,356 CT 25.01 5,627 22.6% 5.2% 3.0% 0.7% 0.0% >0.1% 0.9% 67.6% 77.4% 97 34 69 0 0 0 40 2,152 2,295 CT 39.01 2,392 4.1% 1.4% 2.9% 0.0% 0.0% 0.0% 1.7% 89.9% 95.9% 315 41 78 0 0 0 21 2,487 2,627 CT 39.02 2,942 10.7% 1.4% 2.7% 0.0% 0.0% 0.0% 0.7% 84.5% 89.3% 523 73 15 0 0 15 28 2,720 2,851 CT 39.03 3,374 15.5% 2.2% 0.5% 0.0% 0.0% 0.4% 0.8% 80.6% 84.5% 3,161 5 0 4 0 0 0 128 137 CT 43.07 3,298 95.9% 0.1% 0.0% 0.1% 0.0% 0.0% 0.0% 3.9% 4.2% 2,670 4 2 25 0 0 25 873 929 CT 43.14 3,599 74.2% 0.1% 0.1% 0.7% 0.0% 0.0% 0.7% 24.2% 25.8% 5,791 17 5 10 0 0 14 160 206 CT 43.15 5,997 96.6% 0.3% 0.1% 0.2% 0.0% 0.0% 0.2% 2.6% 3.4% 2,368 0 34 21 0 0 123 1,333 1,511 CT 43.16 3,879 61.0% 0.0% 0.9% 0.5% 0.0% 0.0% 3.2% 34.4% 39.0% 2,858 7 0 0 0 0 8 48 63 CT 43.17 2,921 97.8% 0.2% 0.0% 0.0% 0.0% 0.0% 0.3% 1.7% 2.2% 207 0 1,247 0 0 0 48 438 1,733 CT 9409 1,940 10.7% 0.0% 64.3% 0.0% 0.0% 0.0% 2.5% 22.5% 89.3% CT 1,286 0 17 0 8 0 7 547 579 1,865 9961.01 69.0% 0.0% 0.9% 0.0% 0.4% 0.0% 0.4% 29.3% 31.0% CT 2,184 37 0 224 0 7 109 10,314 10,691 12,875 9961.02 17.0% 0.3% 0.0% 1.7% 0.0% 0.1% 0.8% 80.1% 83.0% 329 0 0 0 0 0 0 3,818 3,818 CT 9962 4,147 7.9% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 92.1% 92.1% CT 144 0 0 17 0 0 11 3,473 3,501 3,645 9964.01 3.9% 0.0% 0.0% 0.5% 0.0% 0.0% 0.3% 95.3% 96.0% CT 182 0 26 39 0 62 19 4,671 4,817 4,999 9964.02 3.7% 0.0% 0.5% 0.8% 0.0% 1.2% 0.4% 93.4% 96.4% Total Study 24,344 599 2,320 462 8 86 567 46,754 50,796 75,140 Area 32.4% 0.8% 3.1% 0.6% >0.1% 0.1% 0.8% 62.2% 67.6% Source: U.S. Census Bureau. Census 2000 Summary File 3 (SF-3) Data Set P7. Website http://factfinder.census.gov (accessed on 5/3/2007) * Hispanic or Latino’ refers to ethnicity and is derived from the total population; ‘Hispanic or Latino’ is not classified as a separate race.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 45 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-3 – Socioeconomic / Census Tract Information – Race

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 46 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.2.2 Title VI Related Statutes/ Environmental Justice Populations Title VI Related Statutes/Environmental Justice Populations include individuals classified as elderly, disabled, low-income, and/or female head-of-household. The following Title VI Related Statutes/Environmental Justice Population groups are defined as: Elderly: an individual 60 years of age or over. Disabled: a non-institutionalized civilian that has reported a sensory disability, physical disability, mental disability, self-care disability, go-outside-home disability, or employment disability. Low-income: a person whose median household income is at or below the US Department of Health and Human Services (DHHS) poverty guidelines1. The 2007 DHHS poverty guidelines for a four person family is $20,650 2. Female head-of-household: any woman either living alone or not living alone who acts as the primary income provider.

For purposes of the socioeconomic analysis on Title VI Related Statutes / Environmental Justice, disproportionate adverse impacts to populations is likely to occur when the population is either (1) 50 percent of the total population of that census tract or (2) is more than double the percentage of the respective Title VI Related Statutes / Environmental Justice population within the comparative counties. Exhibits 4-4 and 4-5 summarize the population composition of elderly, low-income, disables and female head of household within the study area. The shaded numbers in Exhibit 4-4 indicate those percents that exceed the standards established for this socioeconomic analysis for disproportionate adverse impacts to Title VI Related Statutes / Environmental Justice populations within Pima County and Santa Cruz County. A summary of these data are: Elderly population Four (4) individual census tracts (CT) within the study area (CT 43.07, CT 43.15, CT 43.17, and CT 9961.01) displayed substantially higher percentages of elderly populations that either exceed more than double the total percent of Pima County and Santa Cruz County or were greater than 50 percent of the total population for the census tract. These four (4) census tracts may require further consideration for disproportionate adverse impacts. Reviewing the study area as a whole, elderly individuals within the study area comprise of 25.7 percent of the population, which is higher than both Pima County and Santa Cruz County elderly populations; however, the total elderly population within the study area does not exceed the standards established for this socioeconomic analysis. Low – Income households Five (5) individual census tracts within the study area (CT 23, CT 24, CT 9962, CT 9964.01, and CT 9964.02) displayed substantially higher percentages of low-income populations that are more than double the total percent of Pima County and may require further consideration for disproportionate adverse impacts.

1 The DHHS poverty guidelines are an administrative version of the poverty measure, and are used in determining financial eligibility for certain federal programs. 2 United States Department of Health and Human Services. The 2007 HHS Poverty Guidelines: One Version of the [U.S.] Federal Poverty Measure. http://aspe.hhs.gov/poverty/07poverty.html

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 47 I-19 Frontage Road Study January 2008 Working Paper No. 1 The percent for low-income households below the poverty level within the study area is 21.4 percent, which is higher than the total percent for Pima County yet lower than the total percent for Santa Cruz County; the total low-income population within the study area however does not exceed the standards established for this socioeconomic analysis. Disabled Individuals No individual census tracts within the study area that exceed 50 percent of the population or are double that of the total disabled populations for Pima County or Santa Cruz County. Disabled individuals within the study area comprise of 22.7 percent of the population, which is higher than both Pima County and Santa Cruz County disabled populations; however, the total disabled population within the study area does not exceed the standards established for this socioeconomic analysis. Female Head of Household All seventeen (17) individual census tracts within the study area displayed substantially higher percentages of female head-of-household populations that are more than double the total percent of Pima County and may require further consideration for disproportionate adverse impacts. Additionally, female head-of-household populations within the study area comprise 26.1 percent of the population, which is slightly higher than the female head-of-household population of Santa Cruz County and over three times greater than the female head-of-household population for Pima County.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 48 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-4 – Population Composition of Elderly, Low-Income, Disabled, and Female Head-of- Household within the Study Area

Female Head of Area/ Elderly Low-Income Disabled * Census Tract Household** (CT) Number % Number % Number % Number % Pima County 153,400 18.2 120,778 14.7 155,566 20.1 62,584 7.4 Santa Cruz County 5,633 14.7 9,356 24.5 6,409 18.3 2,942 24.9 CT 23 814 14.8 2,525 46.5 1,423 28.5 623 34.7 CT 24 843 13.7 2,185 35.7 1,630 29.0 608 33.6 CT 25.01 803 14.3 935 22.2 1,176 29.9 456 36.5 CT 39.01 416 17.4 423 17.7 417 18.8 91 15.1 CT 39.02 434 14.7 732 24.9 574 21.2 259 30.4 CT 39.03 467 13.8 663 19.6 796 25.5 234 24.2 CT 43.07 2,764 83.8 93 2.8 1,036 31.7 626 32.6 CT 43.14 710 19.7 235 6.6 597 17.9 223 17.3 CT 43.15 4,976 83.0 146 2.4 1,166 19.5 574 17.5 CT 43.16 656 16.9 691 17.8 850 23.1 365 25.1 CT 43.17 2,542 87.0 104 3.7 889 31.4 522 29.9 CT 9409 244 12.6 479 24.9 316 17.8 212 40.4 CT 9961.01 685 36.7 157 8.4 389 21.6 215 24.7 CT 9961.02 1,178 9.1 1,805 14.0 1,968 17.0 583 15.7 CT 9962 411 9.9 1,449 35.0 594 15.8 271 23.1 CT 9964.01 502 13.8 1,158 32.3 718 21.4 322 32.5 CT 9964.02 852 17.0 1,916 38.5 1,032 22.5 555 35.7 Total Study Area 19,297 25.7 15,696 21.4 15,571 22.7 6,739 26.1 Source: U.S. Census Bureau. Census 2000 Summary File 3 (SF-3) Data Sets P8, P9, P42, and P87. Website http://factfinder.census.gov (accessed on 5/3/2007) * Disabled population is comprised of individuals within the population 5 years of age and older. **Female Head of Household population is comprised of individuals in ‘1-person’ households, ‘2-or-more-person’ households, and ‘non-family’ households either living alone or not living alone.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 49 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-5 – Socioeconomic Data/Census Tract Information (Elderly, Low-Income, Disabled, and Female Head-of-Household)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 50 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.2.3 Limited English Proficiency (LEP) Populations Executive Order (EO) 13166, Improving Access to Services for Persons with Limited English Proficiency (LEP), requires all agencies ensure that federally supported programs and activities are meaningfully accessible to LEP individuals. Data from the U.S. Census Bureau, Census 2000, database was used to determine the “Ability to Speak English” for the population of individuals’ age five years and over. For purposes of the socioeconomic analysis on LEP populations, implementing LEP services is likely to be required when the LEP population is either (1) 20 percent of the total population of that census tract or (2) is more than double the percentage of the LEP population within the comparative counties. The U.S. Census Bureau classifies spoken languages into five categories as follows: English; Spanish or Spanish Creole; Other Indo-European Languages Asian and Pacific Island languages Other languages: includes Navajo, Other Native North American languages, Hungarian, Arabic, Hebrew, African languages, and other unspecified languages.

Exhibit 4-6 summarizes census data on Limited English usage populations. The shaded numbers indicate those percents of the LEP populations that exceed the standards established for this socioeconomic analysis. Exhibit 4-7 shows these data graphically. Key findings are: Five (5) individual census tracts (CT 23, CT 24, CT 9962, CT 9964.01, and CT 9964.02) displayed LEP populations within the study area that exceeded 20 percent of the total population within those census tracts and thereby would require considerations for LEP services. Additionally, four (4) individual census tracts (CT 25.01, CT 39.01, CT 39.03, and CT 9961.02) displayed LEP populations within the study area that were more than double the LEP percentage of Pima County and thereby may require considerations for LEP services. Evaluation of the nine (9) identified individual census tracts that exceed the established standards for this socioeconomic analysis indicates that Spanish is the dominate language of concern for the LEP populations. Of the LEP population that speak English “Not at All” or “Not Well” for the nine (9) identified individual census tracts, 99.1 percent are Spanish speaking, 0.4 percent speak Asian and Pacific Island Within the study area 13.4 percent of the total population speaks English “Not Well” or “Not at All”, which is higher than the total percentage for Pima County and lower than the total percentage for Santa Cruz County.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 51 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-6 – Limited English Proficiency (LEP) Populations within the Study Area

Total Population That Speak Area/ Total Population 5 LEP Percentage English “Not Well” or “Not at Years and Over Census Tract (CT) All” (%) Pima County 788,868 36,059 4.6% Santa Cruz County 35,184 7,279 20.7% CT 23 5,002 1,160 23.2% CT 24 5,615 1,201 21.4% CT 25.01 5,335 565 10.6% CT 39.01 2,214 352 15.9% CT 39.02 2,725 218 8.0% CT 39.03 3,115 348 11.2% CT 43.07 3,272 14 0.4% CT 43.14 3,348 77 2.3% CT 43.15 5,986 30 0.5% CT 43.16 3,675 266 7.2% CT 43.17 2,921 7 0.2% CT 9409 1,770 73 4.1% CT 9961.01 1,814 81 4.5% CT 9961.02 11,581 1,663 14.4% CT 9962 3,761 936 24.9% CT 9964.01 3,394 988 29.1% CT 9964.02 4,581 1,398 30.5% Total Study Area 70,109 9,377 13.4% Source: U.S. Census Bureau. Census 2000 Summary File 3 (SF-3) Data Sets P19. Website http://factfinder.census.gov (accessed on 5/3/2007)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 52 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-7 – Socioeconomic Data/Census Tract Information (LEP)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 53 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.2.4 Socioeconomic Environment Conclusions The study area is predominantly Hispanic or Latino; the Hispanic population within the seventeen (17) census tracts is 62.2 percent. The total American Indian and Alaska Native population at 3.1 percent is more than double the percentage within Santa Cruz County and higher than the percentage within Pima County. Twelve (12) census tracts within the study area have been identified with race minority populations that exceed the standards set for this socioeconomic analysis and may require further consideration for disproportionate adverse impacts. The total elderly population within the study area is slightly higher than both counties and the total female head-of-household population within the study area is slightly higher when compared with Santa Cruz County and over three times greater than the female head-of-household population for Pima County. Review of individual census tracts within the study area displayed that standards were exceeded with the elderly population, the low-income population, and the female head-of-household population. Four (4) individual census tracts, CT 43.07, CT 43.15, CT 43.17, and CT 9961.01, displayed substantially higher percentages of elderly populations that either exceed more than double the total percent of Pima County and Santa Cruz County or were greater than 50 percent of the total population for the census tract. Five (5) individual census tracts, CT 23, CT 24, CT 9962, CT 9964.01, and CT 9964.02, displayed substantially higher percentages of low-income populations that exceed more than double the total percent of Pima County. All seventeen (17) individual census tracts displayed substantially higher percentages of female head-of-household populations that exceed more than double the total percent of Pima County. The total disabled population within the study area, along with the individual census tract populations for disabled individuals, is comparable to the percentages of Pima County and Santa Cruz County and does not exceed the standards established for this socioeconomic analysis. The percent of LEP individuals, at 13.4 percent, is higher than the total percentage for Pima County and lower than the total percentage for Santa Cruz County. However, five (5) individual census tracts, CT 23, CT 24, CT 9962, CT 9964.01, and CT 9964.02, displayed LEP populations within the study area that exceeded 20 percent of the total population with those census tracts and thereby, would require considerations for LEP services. The dominate concentration of LEP individuals within the study area are Spanish speaking, at 99.1 percent.

4.2.3 Natural Environment This section describes the existing natural environment within the study area in terms of wildlife, sensitive species, plants, water resources, visual character, air quality, noise, and hazardous material concerns. The inventory of the natural environment of the study area consisted of gathering data and information from various local, state, and federal agencies, including the Arizona Game and Fish Department (AGFD) and the U.S. Fish and Wildlife Service (USFWS). The characteristics of the natural environment within the study area were also identified by field surveys and aerial photographs (Google Earth, 2007).

4.2.3.1 Biotic Communities The study area is located within the Arizona Upland subdivision of the Sonoran Desertscrub Biotic Community and within the Semidesert Grassland Biotic Community. The Sonoran Desertscrub Biotic Community is observed in the northern portion of the study area from the I-19 junction with I-10 to just south of the town of Green Valley. The Semidesert Grassland Biotic Community is observed in the central to southern portion of the study area where it blends and transitions with the Sonoran Desertscrub Biotic Community just south of the town of Green Valley to the United States/Mexico border. The study area also crosses urbanized settings, which influences the distribution and quality of

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 54 I-19 Frontage Road Study January 2008 Working Paper No. 1 vegetation. The characteristics of the natural environment were also identified based on aerial photographs (Google Earth, 2007) of the study area. Numerous ephemeral washes occur throughout the study area which contain xeroriparian habitat. In addition, there are intermittent and/or perennial waters with associated riparian habitat that cross our study corridors. Some of the major drainages include: Julian Wash, Airport Wash, Santa Cruz River, Demetrie Wash, Sopori Wash, and Potrero Creek. Biotic communities within the study area are described in more detail below and are depicted in Exhibit 4-8, Natural Vegetation. Sonoran Desertscrub (Arizona Upland Subdivision) The Sonoran Desertscrub community is comprised of a large arid region that is centered at the head of the Gulf of California and encompasses the western half of the state of Sonora, Mexico, as well as large areas in southeastern California, southwestern Arizona, and the Baja California peninsula. There are seven recognized subdivisions, all of which are derived from the subtropical species. Common species in this community include blue paloverde (Cercidium floridum), yellow paloverde (Cercidium microphyllum), desert ironwood (Olneya tesota), mesquites (Prosopis spp.), cat-claw acacia (Acacia greggii), crucifixion thorn (Canotia holacantha), cholla (Opuntia spp.), saguaro cactus (Carnegiea gigantea), pincushion cacti (mammillaria spp.), and barrel cacti (Ferocactus spp.). Semidesert Grassland Semidesert grassland adjoins and largely surrounds the Chihuahuan desert in Texas, New Mexico and much of Mexico, and is only in some areas in southeast Arizona. Common species in this community include: black grama (Bouteloua eriopoda), slender grama (Bouteloua filiformis), Chino grama (Bouteloua breviseta), spruce top grama (Bouteloua chondrosioides), hoe grass (Muhlenbergia porteri), several three-awn species (Artistida spp.), curly mesquite (Hilaria belangeri), slim tridens (Tridens muticus), pappus grass (Pappophorum vaginatum), and tanglehead grass (Heteropogon contortus). Field observations within the study area revealed that the native Semidesert Grassland Biotic Community has been significantly displaced in the Tucson area as a result of urban development. The vegetation within the area of Tucson is predominately urban ornamental. Additionally, field observations along the I-19 corridor revealed that the native Semidesert Grassland Biotic Community has been moderately displaced in the Green Valley and Nogales areas and slightly displaced in the Amado, Tubac, and Rio Rico Northwest areas as a result of urban and residential developments. The vegetation within these towns is a combination of natural vegetation and urban ornamental. Disturbances to roadside vegetation should be kept to the minimum disturbance necessary for construction operations.

4.2.3.2 Wildlife Numerous washes occur throughout the project area which contain xeroriparian vegetation. The most common wildlife found within the study area includes, but not limited to: black-tailed jack rabbit (Lepus californicus), spotted ground squirrel (Spermophilus spilosoma), hispid pocket mouse (Perognathus hispidus), mourning dove (Zenaida macroura), road-runner (Geococcyx californianus), raven (Covus cryptoleucus), cactus wren (Campylorhynchus brunneicapillus), and various lizard species. Xeroriparian habitat associations with drainages provide the best habitat value for wildlife by providing food, shelter, and travel corridors.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 55 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-8 – Natural Vegetation

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 56 I-19 Frontage Road Study January 2008 Working Paper No. 1 The Arizona Wildlife Linkages Assessment (2006) was conducted as a proactive effort to preserve and potentially restore habitat connectivity within the state of Arizona. The purpose of the assessment was to identify habitat blocks that consist of important wildlife habitat; fracture zones that separate habitat blocks; the potential linkage zones between, within, and through the habitat blocks and fracture zones that can be identified as areas critical to wildlife movement; and the factors threatening to disrupt the potential wildlife linkage zones. The objective of the assessment is to maintain natural ecosystems, habitat connectivity, and wildlife populations and to address habitat fragmentation through a comprehensive, systematic approach. The Arizona Wildlife Linkages Assessment has identified four potential linkage zones within the I-19 study area which are: Linkage 87, Tucson Mountains – San Xavier (San Robles Pass) Linkage 92, San Xavier – Sierrita – Santa Rita Linkage 93, Tumacacori – Santa Rita Linkage 152, Central Arizona Project Canal.

Two of the four identified linkage zones (Linkage 92 and 93) are of high priority for consideration containing both a high ecological value and the most pressing threats to the existing linkage. Additional studies conducted within the I-19 study area include the Sonoran Desert Conservation Plan (Draft) and the Pima County Multi-species Conservation Plan (Draft). The Sonoran Desert Conservation Plan (SDCP) has integrated all natural resource protection and land use planning activities into one management plan; fulfilling the need for a science-based conservation plan, an update of the comprehensive land use plan, and a multiple species conservation plan to address the protection of endangered species, in compliance with federal regulations. Within the I-19 Frontage Road study area the SDCP identified important riparian areas, critical landscape linkages, and a 4,884 acre Pima County owned reserve, the Canoa Ranch. Furthermore, the Pima County Multi-Species Conservation Plan identified areas of high biological value and critical landscape connections within the I-19 Frontage Road study area. Consideration of the identified wildlife linkages and value for connectivity should be conducted as the I- 19 Frontage Road improvements are designed. Further studies and/or surveys for wildlife may be required as the I-19 frontage road plan is developed to assess the potential impacts to wildlife, habitats, and linkages.

4.2.3.3 Special Status Species and Critical Habitat For purposes of this document special status species include those that are federally listed as threatened, endangered, proposed, and candidate for listing under the Endangered Species Act of 1973, as amended. A list of federally listed threatened, endangered, proposed, and candidate species as well as state-listed wildlife of concern in Arizona which may occur within the study area was prepared from information provided by the AGFD and the USFWS. These lists are provided in Appendix A-1 and A-2. The study area traverses through the San Xavier Indian Reservation. The San Xavier Nation maintains a list of species of special concern that would need to be addressed for future projects on the reservation. Critical habitat is the specific geographic areas, whether occupied by listed species or not, that are determined to be essential for the conservation and management of listed species, and that have been formally described in the Federal Register. Critical habitat only applies to federally listed, endangered or threatened, species. No designated critical habitat, as reported by the AGFD on-line review tool, occurs within the study area for any of the species on the USFWS list. The burrowing owl, southwestern willow flycatcher, and the yellow-billed cuckoo, all protected under the Migratory Bird Treaty Act of 1918 and the Endangered Species Act of 1973, are known to occur

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 57 I-19 Frontage Road Study January 2008 Working Paper No. 1 within the study area. The I-19 corridor contains large areas of bare ground and undeveloped vacant land that provide suitable habitat for western burrowing owls (Athene cunicularia hypugaea) along with adjacent and transecting riparian corridors with brushy vegetation that provides suitable habitat for western yellow-billed cuckoos (Coccyzus americanus occidentalis) and southwestern willow flycatchers (Empidonaz traillii extimus). The Gila topminnow (Poeciliopsis occidentalis occidentalis) and the Pima pineapple cactus (Coryphantha scheeri var. robustispina), protected under the Endangered Species Act of 1973, are also known to occur within the study area. The I-19 corridor contains: areas of desert grasslands with alluvial hillsides in rocky, sandy soils that provide suitable habitat for the Pima pineapple cacti; and adjacent and transecting riparian corridors provides suitable habitat for the Gila topminnow. Potential impacts to the western burrowing owl, southwestern willow flycatcher, western yellow-billed cuckoo, Gila topminnow, and the Pima pineapple cacti should be evaluated during the environmental clearance process.

4.2.3.4 Noxious Weeds Invasive and noxious weeds are an increasing problem. Invasive and noxious weeds rapidly displace desirable plants that provide habitat for wildlife and food for people and livestock. Invasive and noxious weeds are plants that are not native to Arizona and were introduced accidentally, unintentionally, and/or intentionally. Noxious weeds are recognized on state and federal lists and are generally considered those that are exotics and/or negatively impact agriculture, navigation, fish, wildlife, and public health. Since the 1900s, weedy annuals such as cheatgrass (Bromus tectorum), Russian thistle (Salsola spp.), and tumble mustard (Thelypodiopsis spp.) have become established in areas where grazing has greatly reduced the native vegetation. Invasive weeds such as those listed previously can alter fire regimes. Under Executive Order 13112, dated February 3, 1999, projects that occur on federal lands or are federally funded must be: “subject to the availability of appropriations, and within Administration budgetary limits, use relevant programs and authorities to: i) prevent the introduction of invasive species; ii) detect and respond rapidly to, and control, populations of such species in a cost-effective and environmentally sound manner; iii) monitor invasive species populations accurately and reliably; and iv) provide for restoration of native species and habitat conditions in ecosystems that have been invaded.” A survey will be required by a qualified noxious weed authority to determine if any noxious weeds are present within the study area boundaries.

4.2.3.5 Water Resources The U.S. Army Corps of Engineers (USACE) regulates the discharge of dredge and fill material into waters of the U.S. under Section 404 of the Clean Water Act. Any activity that will discharge dredge or fill material into jurisdictional waters, including wetlands, will require a Clean Water Act Section 404 Nationwide Permit (NWP), following the completion of a jurisdictional delineation. A jurisdictional delineation is the process of identifying the characteristics and boundaries of waters of the U.S. within a given geographic area, and must receive final approval by the USACE. There are ephemeral drainage systems within the study area. In general, ephemeral drainage systems are determined by the USACE to be jurisdictional waters. If it is anticipated that work will take place within or adjacent to potential waters of the U.S., a jurisdictional delineation for the study area should be completed and submitted to the USACE for concurrence. Following USACE-approval of the jurisdictional delineation, the project should be reviewed to determine if a Section 404 permit is necessary. Activities that may require a permit include, but are not limited to: construction of new

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 58 I-19 Frontage Road Study January 2008 Working Paper No. 1 roads; widening of existing roads; construction or expansion of bridges;, installation of corrugated-metal pipe and concrete box culverts; installation of riprap; and maintenance activities within a drainage system. If impacts are expected to be below 0.5 acre for each identified water of the U.S. (i.e. each individual wash system), a Nationwide Permit (NWP) Number 14 would likely be required. If impacts at a single crossing or to any individual drainage system exceed 0.1 acre, pre-construction notification must be provided to the USACE, and the project must be authorized by the USACE prior to the start of construction. If impacts at a single crossing or to any individual drainage system do not exceed 0.1 acre, pre-construction notification is generally not required, but may be required if a “may effect” determination is made for a threatened or endangered species and/or the presence of any historic property determined to be eligible, or which may be eligible, for listing on the National Register of Historic Places is identified. If impacts at any single crossing or to any individual drainage system exceed 0.5 acre, a Section 404 Individual Permit would be required. The Individual Permit process requires a more detailed permit application, and the USACE review period is typically much longer than that of a Nationwide Permit. Improvements within or near waters of the U.S. require Section 401 Water Quality Certification. In certain cases, projects are Conditionally Certified and it is not necessary to submit an application for certification to the Arizona Department of Environmental Quality (ADEQ); however, the Section 401 conditions listed in the applicable Section 404 permit must be adhered to in order to qualify for Conditionally Certified. Linear transportation projects are generally Conditionally Certified. The National Pollutant Discharge Elimination System (NPDES) is a national program under Section 402 of the Clean Water Act that regulates discharges of pollutants from point sources into waters of the U.S. Arizona has been delegated authority from the U.S. Environmental Protection Agency (EPA) to implement the permit program within the state. The state program is referred to as the Arizona Pollutant Discharge Elimination System (AZPDES). The AZPDES permit program requires an AZPDES general permit for construction activities that disturb one or more acres of land. A Stormwater Pollution Prevention Plan (SW3P) must be prepared as a part of the AZPDES permit. A review of Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps (FIRM) indicates 100-year floodplains are located within the study area (See Exhibit 4-9, 100-year & 500-year Floodplains). The identified floodplains within the study area are classified Zone A and are recognized as areas with a determined base flood elevation. Coordination with the floodplain manager and FEMA would be required if impacts are proposed within the flood zone. Any construction activity located within a delineated floodplain and watercourses or contributing watersheds (with flows greater than 200 cubic feet per second during a 100-yr flood event) must adhere to the local Pinal County Floodplain Ordinance and the Santa Cruz County Floodplain and Erosion Hazard Ordinance.

4.2.3.6 Prime and Unique Farmlands The study area is predominately undeveloped natural desert with residential and commercial developments and existing urban areas throughout the corridor. Agricultural lands were observed within the study area during field surveys and on aerial photographs (GoogleEarth, 2007). Prime farmland is land that has the best combination of physical and chemical characteristics for producing food, feed, fiber, forage, oilseed, and other agricultural crops with a minimum input of fuel, fertilizer, pesticides, and labor, and without intolerable soil erosion. Unique farmland is land other than prime farmland that is used for the production of specific high value food and fiber crops. High value food crops include but are not limited to citrus, tree nuts, olives, avocados, fruit, and vegetables. Prime and unique farmland has the soil quality, growing season, and moisture supply needed to economically

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 59 I-19 Frontage Road Study January 2008 Working Paper No. 1 produce sustained high yields and/or high quality of crops when treated and managed, including water management, according to acceptable farming methods. A review of the U.S. Department of Agricultural Soil Surveys for Pima County and Santa Cruz County and the U.S. Census Bureau Reference Map for Urban Areas indicates that there is prime farmland and unique farmland within the I- 19 Frontage Road study area. In accordance with the Farmland Protection Policy Act a farmland conversion impact rating (Form NRCS-CPA-106) would be required if right-of-way is to be acquired from any prime or unique farmlands within the study area.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 60 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-9 – 100-year & 500-year Floodplains

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 61 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.4 Visual Character The visual character within the study area is dominated in the north by the urban setting of Tucson. South of Tucson the visual character returns to a relatively undisturbed natural desert with scattered mountains and ridges interspersed by the small towns and communities of Green Valley, Amado, and Tubac. The rural setting within the study area is disrupted within these towns and communities as encroaching subdivisions and commercial developments increase. The Santa Cruz River parallels much of the I-19 corridor to the east and provides views of moderate to dense green riparian vegetation. Additionally, agricultural fields can be observed within the study area adjacent to the Santa Cruz River corridor. The visual character in the south of the study area is reflected by the residential and commercial buildings with interspersed mountain ridges of the border town of Nogales. Due to the low topographic relief, views throughout the study area of the surrounding mountains and the adjacent river are unimpeded and mountain views extend for more than 50 miles.

4.2.5 Air Quality The Clean Air Act (CAA) Amendments and NEPA require that air quality impacts be addressed in the preparation of environmental documents. The level of effort used to evaluate these impacts may vary from a simplified description to a detailed analysis depending on factors, such as the type of document to be prepared, the project location and size, the air quality attainment status of the area, and the state air quality standards. Under the CAA, areas are classified for the degree of ambient air pollution existing at the time of the 1990 amendments as to whether they attain the National Ambient Air Quality Standards (NAAQS) or are in nonattainment of the standards as described below. As required by the CAA, NAAQS have been established for the following major air pollutants: carbon monoxide, hydrocarbons, nitrogen dioxide, ozone, particulate matter smaller than 10 microns (PM10), particulate matter smaller that 2.5 microns (PM2.5), sulfur dioxides, and lead. Carbon monoxide is a colorless, odorless gas that affects the cardiovascular system. Vehicular emissions are a major source of carbon monoxide. Ozone is created through a complex reaction of hydrocarbons and oxides of nitrogen with sunlight as a catalyst. Ozone affects the respiratory system; and vehicle emissions, power plants, and service stations are major sources. High concentrations of ozone are common in the Tucson area during the summer. Nitrogen dioxide is a gas with a yellowish orange to reddish brown appearance, depending on its concentration, which impairs the respiratory system. Major sources of nitrogen dioxide are power plants and vehicle emissions. Particulate matter refers to small aerosols that may cause irritation and damage to the respiratory system. Vehicle emissions and the resuspension of road dust by vehicular activity are common sources. Sulfur dioxide is a colorless gas frequently derived from the combustion of sulfur-containing fuels. It primarily affects the respiratory system and major sources are coal- and oil-fired power plants. Lead and its compounds damage the cardiovascular, renal, and nervous systems. Before the harms of lead were known it was commonly used as an additive in gasoline. The primary source of airborne lead is vehicular emissions associated with the use of leaded gasoline. The CAA banned the sale of leaded fuel for use in on-road vehicles in 1996, however the CAA allowed leaded fuel to be sold for off-road uses until the year 2008. Off-road uses include aircraft, racing cars, farm equipment, and marine engines. These standards have also been established as the official ambient air quality standards for the state of Arizona. The “primary” standards have been established to protect the public health. The “secondary” standards are intended to protect the nation’s welfare and account for air pollutant effects on soil, water, visibility, materials, vegetation, and other aspects of the general welfare. In 1987, the standard for particulate matter was revised by the Environmental Protection Agency (EPA). The EPA defines total suspended particulate matter (TSP) as aerosols with diameters ranging from 0.1

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 62 I-19 Frontage Road Study January 2008 Working Paper No. 1 microns up to approximately 30 microns in size, and include fine, coarse, and super coarse particles. Aerosols with aerodynamic diameters of 10 microns or less are referred to as PM10. In July 1997, EPA revised the standards for both particulate matter and ozone. For particulate matter, the methods for the determination of exceedences were revised and the PM10 standard was revised by adding standards for particulates with diameters less than or equal to 2.5 microns and are referred to as PM2.5. For ozone, the 1-hour standard was replaced with an 8-hour standard. In addition, the standard for concentration of ozone was lowered from 0.12 ppm to 0.08 ppm, and the method for the determination of exceedences was also revised. The effective date of those final rules was September 16, 1997.

4.2.5.1 Nonattainment Areas The CAA Amendments of 1990 authorized the EPA to designate areas as nonattainment, and to classify them according to their degree of severity. This classification initiates a set of control requirements designed to achieve attainment by a specified date. A nonattainment area is an area in which compliance with the NAAQS has not been established for one or more pollutants. States that fail to attain the NAAQS for any of the criteria pollutants are required to submit State Implementation Plans, which outline those actions that will be taken to attain compliance. The study area is within one (1) nonattainment area and one (1) maintenance area: a non-attainment area for PM10 has been determined for the Nogales area; and a maintenance area for CO2 has been determined for the Tucson area.

4.2.5.2 Conformity Since 1977, federal agencies and Metropolitan Planning Organizations have been required by Section 176c of the CAA to ensure that all transportation projects conform to the approved air quality State Implementation Plans. The CAA enacted in 1990 defined conformity to a State Implementation Plan as meaning the conformity to a State Implementation Plan’s purpose of eliminating or reducing the severity and number of violations of the NAAQS. The conformity determinations for federal actions related to transportation projects must meet the requirements of Title 40 of the Code of Federal Regulations (CFR) Parts 51 and 93.

The study area is within the Nogales non-attainment area for PM10 and the Tucson maintenance area for CO2, which have transportation control measures in the State Implementation Plans and Federal Implementation Plan. Projects within the I-19 Frontage Road study area will need to be included in an approved transportation improvement plan for at least one year, and no more than three years, prior to construction. The Transportation Improvement Plan will have to be approved by the FHWA and EPA as conforming to the State Implementation Plan, and the Federal Implementation Plan. Construction related disturbance of the soil by heavy equipment would increase fugitive dust and, if uncontrolled, would affect local air quality. In addition, construction-related traffic delays, combined with exhaust emissions from constructed-related equipment, may elevate levels of pollutants. Such impacts would be temporary and would be eliminated once construction is complete. Any construction activity located within Pima County must adhere to the local air quality rules and ordinances, including Pima County Code Title 17.

4.2.6 Noise Noise, defined as unwanted or excessive sound, is an undesirable by-product of our modern way of life. While noise emanates from many different sources, transportation noise is perhaps the most pervasive and difficult source to avoid in society today. The Federal-Aid Highway Act of 1970 mandates the FHWA to develop noise standards for mitigating roadway traffic noise. The FHWA regulations for

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 63 I-19 Frontage Road Study January 2008 Working Paper No. 1 mitigation of roadway traffic noise in the planning and design of federally-aided roadways are contained in Title 23 of the United States Code of Federal Regulations Part 772. The regulations require the following during the planning and design of a roadway project: 1) identification of traffic noise impacts; examination of potential mitigation measures; 2) the incorporation of reasonable and feasible noise mitigation measures into the roadway project; and 3) coordination with local officials to provide helpful information on compatible land use planning and control. The regulations contain noise abatement criteria, which represent the upper limit of acceptable roadway traffic noise for different types of land uses and human activities. The regulations do not require that the abatement criteria be met in every instance. Rather, they require that every reasonable and feasible effort be made to provide noise mitigation when the criteria thresholds are approached or exceeded. ADOT has adopted a State Policy, the Noise Abatement Policy for Federal Aid Projects, which is consistent with the FHWA Highway Traffic Noise Analysis and Abatement Policy and Guidance. These policies outline noise impacts. A traffic noise impact occurs when either of the following conditions occurs: The predicted traffic noise level approaches or exceeds the FHWA noise abatement criteria (NAC) shown in Exhibit 4-10. ADOT defines approach as being 3dBA below the appropriate NAC. The predicted traffic noise level substantially exceeds the existing noise level. ADOT defines substantial in this context as 15dBA or greater.

If potential traffic noise impacts are identified, noise abatement is considered and implemented, if it is found to be both reasonable and feasible. The views of the impacted residents are a major consideration in reaching a decision on the reasonableness of abatement measures to be provided. When noise abatement measures are being considered, every reasonable effort is made to obtain substantial noise reductions. Substantial noise reductions have been defined by State highway agencies to typically range from 5 to 10 dBA. Roadway construction noise is often viewed by the public as being short term and a necessary price for growth and improvement. Roadway construction noise should generally be addressed in a qualitative, rather than quantitative, manner commensurate with the scope of a roadway project. Construction noise levels may be predicted, if warranted. If potential construction noise impacts are identified, a common sense approach should be utilized to incorporate appropriate abatement measures into a roadway project.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 64 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-10 – FHWA Noise Abatement Criteria

Activity Description Leq(h) Category A Lands on which serenity and quiet are of extraordinary significance and 57 dBA serve an important public need and where the preservation of those (exterior) qualities is essential if the area is to continue to serve its intended purpose. B Picnic areas, recreation areas, playgrounds, active sports areas, parks, 67 dBA residences, motels, hotels, schools, churches, libraries, and hospitals. (exterior) C Developed lands, properties, or activities not included in Categories A 72 dBA or B (exterior) D Undeveloped lands. None E Residences, motels, hotels, public meeting rooms, schools, churches, 52 dBA libraries, hospitals, and auditoriums. (interior) Source: Title 23, CFR Part 772 Noise activity Category B and D in Exhibit 4-10 are found within the study area. Category B sensitive noise receivers sites within the I-19 study area include existing and planned residential areas, recreational open space, and churches. Undeveloped lands are represented by activity Category D. During subsequent environmental documentation activities for the study area, ambient noise levels may need to be monitored at specific locations. The future noise quality for the study area would need to be evaluated against the existing noise data to conform to the FHWA Highway Traffic Noise Analysis and Abatement Policy and Guidance and ADOT Noise Abatement Policy. In addition, local noise ordinances will need to be evaluated in considering future project development.

4.2.7 Hazardous Materials Hazardous materials are regulated by the U.S. Environmental Protection Agency (EPA) pursuant to the Federal Resources Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The EPA implements CERCLA, commonly known as the Superfund, and its amendments, the Superfund Amendments and Reauthorization Act (SARA) of 1986. In order to evaluate the environmental concerns associated with hazardous materials and solid waste landfills, a preliminary evaluation was performed of the permitted and non-regulated hazardous materials sites and solid waste facilities located within or immediately adjacent to the study area. A review of the various state and federal databases for hazardous materials was completed for the study area. Sources consisted of: ADEQ Underground Storage Tanks (UST); ADEQ Leaking Underground Storage Tanks (LUST); ADEQ Hazardous Material (HazMat) Incident Logbook (HMIL); Federal Superfund Sites to include National Priority List (NPL), Department of Defense (DoD) Sites and Arizona Water Quality Assurance Revolving Fund (WQARF); Arizona Hazardous Waste Treatment, Storage, and Disposal Facilities (TSDF) and Solid Waste Landfills (SWLF).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 65 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.7.1 Underground Storage Tanks The results of the underground storage tank (UST) database search indicate that twenty-five (25) sites with UST records are located within or adjacent to the I-19 Frontage Road right-of-way. The results are summarized in Appendix B-1.

4.2.7.2 Leaking Underground Storage Tanks The results of the leaking underground storage tank (LUST) database search indicate that ten (10) sites with LUST case files are located within or adjacent to the I-19 Frontage Road right-of-way. The results are summarized in Appendix B-2.

4.2.7.3 Hazardous Material Incident Logbook Six (6) hazardous material incidents occurred within or immediately adjacent to the study area, as recorded in the Hazardous Material Incident Logbook. The records are summarized in Appendix B-3.

4.2.7.4 Superfund Sites Superfund Sites include the following; WQARF sites, Potential WQARF sites, National Priority List (NPL) sites, Department of Defense (DoD) sites, and Formerly Used Defense (FUD) sites. According to the ADEQ Superfund Programs Section and the ADEQ Interactive GIS eMap website, one (1) NPL site was identified within one mile of the study area. The identified NPL site is the Raytheon Air Force Plant #44, Tucson Airport, located in South Tucson. No other superfund sites were identified within one mile of the study area.

4.2.7.5 Treatment, Storage, and Disposal Facilities and Solid Waste Landfills According to the Arizona Hazardous Waste Treatment, Storage, and Disposal Facilities List and ADEQ Interactive GIS eMap website, one (1) hazardous waste treatment, storage, or disposal facility is located within or immediately adjacent to the study area. The identified hazardous waste treatment, storage, or disposal facility is the Conn-Selmer Inc. facility, located in Nogales, AZ. Additionally, two (2) solid waste landfills are located within or immediately adjacent to the study area. The two identified landfills include the Rio Rico Municipal Landfill in Santa Cruz County and the Sahuarita Municipal Landfill in Pima County.

4.2.7.6 Other Environmental Sites and Facilities According to the ADEQ Interactive GIS eMap website there is one (1) Brownfield located within 1 mile of the study area. The Brownfield identified within the study area is the Valencia Power Plant located in Nogales, AZ.

4.2.7.7 Hazardous Materials Conclusion Identified hazardous material sites located within or immediately adjacent to the I-19 R/W includes twenty-five recorded UST sites, ten recorded LUST sites, and six hazardous material incident sites. Additionally, records identified one NPL superfund site, one hazardous waste treatment, storage, or disposal facility, two landfills, and one Brownfield site within one mile of the study area. Further coordination would be required if right-of-way acquisition or proposed construction actions will impact any existing hazardous material sites. If new right-of-way is to be acquired for future construction, a Phase I Environmental Site Assessment should be conducted to allow the user a legal defense under the Landowner Liability Protections under CERCLA; as well as, provide the user with an account of the potential for the study area to have been impacted by contaminants.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 66 I-19 Frontage Road Study January 2008 Working Paper No. 1 4.2.8 4(f) Resources Section 4(f) of the Department of Transportation Act of 1966 stipulates that Federal Highway Administration may not approve the use of land from a significant publicly owned park, recreation area, or wildlife and waterfowl refuge, or any significant historic site that is either listed, or eligible for listing on the Register under the following Criteria stated in 49 U.S.C., Section 303: “It is the policy of the United States Government that special effort is made to preserve the natural beauty of the countryside and public park and recreation lands, wildlife and waterfowl refuges, and historic sites. The Secretary of Transportation shall cooperate and consult with the Secretaries of the Interior, Housing and Urban Development, and Agricultural, and with the States, in developing transportation plans and programs that include measures to maintain or enhance the natural beauty of lands crossed by transportation activities or facilities. The Secretary may approve a transportation program or project requiring the use of publicly owned land or a public park, recreation area, or wildlife and waterfowl refuge, or land of an historic site of national, State, or local significance (as determined by the Federal, State, or local officials having jurisdiction over the park, recreation area, refuge, or site) only if- 1) There is no prudent and feasible alternative to using that land; and 2) The program or project includes all possible planning to minimize harm to the park, recreation area, wildlife and waterfowl refuge, or historic site resulting from the use.” The study area contains eighty-six Section 4(f) properties and includes two parks, one historic ranch, thirteen NRHP sites, four NRHP Historic Districts, and sixty-six eligible NRHP sites. The two parks identified within the I-19 study area includes La Mar Park which is located in South Tucson on the east side of I-19 and Anamax Neighborhood Park which is located in Sahuarita on the west side of I-19 (See Exhibit 4-11). The Historic Canoa Ranch is located in Pima County south of Green Valley, on the east side of I-19 approximately 2.9 miles south of East Continental Road to West Elephant Head Road and is approximately 4,800 acres in size. The Canoa Ranch is owned by Pima County and provides public use for a variety of recreational activities in designated areas of the property. Although the Canoa Ranch is a historic site it is not listed on the NRHP and currently has only been recommended for eligibility for the NRHP (Appendix C.2). The Historic Canoa Ranch however is publicly owned with active and planned recreational usages available to the public and therefore has been identified as a Section 4(f) Resource. There are thirteen sites and four historic districts within the study area that are currently listed on the National Register of Historic Places (NRHP) and are further discussed in detail in Section 4.2.10 Cultural Resources, Exhibit 4-12, and in Appendix C.2. Additionally, there are sixty-six (66) sites that have been determined eligible by the SHPO (Section 4.2.10 Cultural Resources and Appendix C.2). These NRHP sites along with the sites that have been determined eligible for the NRHP are identified as Section 4(f) Resources. Further Section 4(f) coordination with the appropriate agencies and departments would be required if I- 19 Frontage Road improvements impact any of the eight-four identified Section 4(f) Resources aforementioned properties or the entrances to the related facilities. The existing I-19 alignment follows the rough alignment of the Historic Trail of Juan Bautista de Anza from Nogales to Tucson. The Juan Bautista de Anza Trail was the first historic overland route

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 67 I-19 Frontage Road Study January 2008 Working Paper No. 1 established in 1775 to connect Sonora, Mexico to San Francisco, California. The U.S. National Park Service designated the Juan Bautista de Anza Trail as a National Historic Trail in 1978. Although the Juan Bautista de Anza Trail is a historic site it is not listed on the NRHP and currently has not been determined eligible listing on the NRHP. Furthermore, recreational areas along the Juan Bautista de Anza National Historic Trail have not been identified within the I-19 study area. The Juan Bautista de Anza National Historic Trail does not qualify as a Section 4(f) Resource; however future coordination with the appropriate agencies and departments would be recommended if impacts are anticipated at the entrances to recreational areas along the Juan Bautista de Anza National Historic Trail. No other publicly owned park, recreation area, or wildlife and waterfowl refuge is present within the study area. Section 4(f) properties outside of the I-19 Frontage Road Study Area have been identified that are within the vicinity and include, but not limited to, the Tumacacori Highlands Wilderness, Santa Rita Experimental Range and Wildlife Refuge, and Coronado National Forest. Entrances to these types of facilities may exist within the I-19 study area, therefore future coordination with the appropriate agencies and departments is recommended if impacts are anticipated at these facility entrances.

4.2.9 6(f) Resources The Land and Water Conservation Fund Act (LWCF) was signed into law on September 3, 1964. The Act was established to provide a funding source for acquisition of park and recreation lands by federal, state, and local governments. The provisions under Section 6(f)(3) mandate that these investments be protected, but recognize that changes in land use, especially in growing urban areas, can impact these protected areas. The LWCF Act contains the following provision to protect these areas from conversions (National Park Service 2004): SEC. 6(f)(3) No property acquired or developed with assistance under this section shall, without the approval of the Secretary, be converted to uses other than public outdoor recreation uses. The Secretary shall approve such conversion only if he finds it to be in accord with the then existing comprehensive statewide outdoor recreation plan and only upon such conditions as he deems necessary to assure the substitution of other recreation properties of at least equal fair market value and of reasonable equivalent usefulness and location. According to the 2003 Arizona Statewide Comprehensive Outdoor Recreation Plan (Arizona State Parks 2004), one (1) Section 6(f) funded property, the Anamax Neighborhood Park located in Sahuarita, is located within the I-19 Frontage Road Study Area (See Exhibit 4-11). The Anamax Neighborhood Park received a LWCF Grant in 1977 therefore, if improvements to the I-19 Frontage Roads directly impact the Anamax Neighborhood Park the requirements of Section 6(f)(3) would apply and coordination with the Arizona State Parks LWCF Grants Coordinator and the National Park Service would be required, regardless of the construction funding source. Additionally, if a new park is constructed within the study area (prior to construction of proposed I-19 Frontage Road improvements) that could be directly impacted and if LWCF funds are used to construct the park, requirements of Section 6(f)(3) would also apply.

4.2.10 Cultural Resources A preliminary review of cultural resources within and immediately adjacent to the study area was conducted utilizing the AZSITE Cultural Resource Database. The AZSITE database listed approximately 290 cultural resource survey projects (primarily archaeological in nature) and 494 archaeological and historical sites within a 1 mile buffer of the I-19 Frontage Road R/W (project review area). The AZSITE database list of cultural resource surveys and sites are included in Appendix C. The archaeological survey projects range from large community

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 68 I-19 Frontage Road Study January 2008 Working Paper No. 1 surveys to small site specific surveys and linear transportation/utility related projects that have been undertaken as part of regulatory compliance efforts. Many of the cultural resource sites have been either investigated through controlled excavation projects or have been avoided by construction and development projects. The density and diversity of the cultural resources in the study area is high. The identified properties exhibit a great range in their distribution and character. Project types included linear transportation and utility R/W, agricultural, and residential and commercial land development activities. Resources vary in nature from prehistoric artifact scatters, habitation sites, to agricultural, mining and transportation, and historic buildings. As evident from the number and location of the survey activities, the study area has not been systematically surveyed. Instead many of the survey efforts are the results of separate compliance activities initiated by to state, federal, and local regulations. There are thirteen sites and four historic districts within the study area that are currently listed on the National Register of Historic Places (NRHP) (Exhibit 4-12). The four NRHP Historical Districts identified within the I-19 review area includes Barrio Libre Historic District, Crawford Hill Historic District, Marsh Heights Historic District, and Tubac Townsite Historic District. Additionally, there are sixty-six (66) sites that have been determined eligible by the SHPO; thirteen (13) sites have been determined not eligible by the SHPO; forty-five (45) sites have been recommended eligible by their recorders; eighteen (18) sites have been recommended as not eligible by their recorders; and 173 sites have not been evaluated (Appendix C.2). The site density in the review area suggests that there may be numerous significant archaeological sites eligible for the National Register of Historic Places (NRHP) present. Exhibit 4-12: National Register of Historic Places (NRHP) Sites within the I-19 Study Area

Site Name Agency Number Site Type and Location

Nogales Electric Light, Ice & Water Company Power House. The Nogales Electric Light, only remaining building associated with the development of electric Ice & Water Cam pan MPAEXP-561 power in Nogales. Crawford Hill Historic Residential District. Power House 498 Grand Street, Nogales

Residence. Crawford Hill Historic Residential District. House/Residence MPAEXP-568 220 Walnut Street, Nogales

Residence for Franklin F. Cranz, Mayor of Nogales (1904-1906) Frank F. Cranz House MPAEXP-571 Crawford Hill Historic Residential District (8-29-1985) 408 Arroyo Boulevard, Nogales

Building/Residence. Barrio Libre Historic District. Building/Residence MPAEXP-12999 837 South 10th Avenue, Nogales

Large Hohokam Village Valencia Site AZ BB:13:15(ASM) Address Restricted Barrio de Tubac Large Archaeological Site in Tubac, AZ. N/A Archaeological District Address Restricted Historic school house. Old Tubac Schoolhouse N/A Located on the Tubac Presidio State Historic Park property, at Broadway and River Road, Tubac. Multiple Site No. Assigned: Tubac Presidio Historic Presidio AZ DD:8:33(ASM), AZ Broadway and River Road, Tubac DD:8:10 (ASM) Tumacacori National Spanish colonial mission ruins N/A Monument Located approximately 18 miles north of Nogales on I-19 Located at the Tumacacori National Monument approximately 18 Tumacacori Museum N/A miles north of Nogales on I-19 Historic ranch Pete Kitchen Ranch AZ EE:9:88(ASM) 3.5 miles north of Nogales, AZ off of US 89 and I-19

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 69 I-19 Frontage Road Study January 2008 Working Paper No. 1 Old Nogales City Hall Historic City Hall and Fire Station AZ EE:9:89(ASM) and Fire Station 223 Grand Avenue, Nogales Santa Cruz County Court Historic Courthouse AZ EE:9:92(ASM) House Court and Morley Streets, Nogales Historic District with 4 contributing buildings within the I-19 review area. Barrio Libre Historic N/A Located in Tucson, Arizona just northeast of the I-19/I-10 District interchange. Roughly bounded by 14th Street, 19th Street, Stone Street, and Osborne Street. Historic District with 170 contributing elements within the I-19 review Crawford Hill Historic area. N/A District Located in Nogales, Arizona. Roughly bounded by Oak Street, Terrace Avenue, Compound Street, I-19, and Grindell in Nogales Historic District with 17 contributing buildings within the I-19 review Marsh Heights Historic area. N/A District Located in Nogales, Arizona. Roughly bounded by Court Street, Morley Avenue, South Court Street, and Summit Avenue. Historic District with 22 contributing buildings within the I-19 review Tubac Townsite Historic area. N/A District Located in Tubac, Arizona just east of I-19. Roughly bounded by Tubac Road, Plaza Road, and Presidio Drive.

As previously mentioned in Section 4.2.8 Section 4(f) Resources, the I-19 alignment follows the rough alignment of the Historic Trail of Juan Bautista de Anza from Nogales to Tucson. The Juan Bautista de Anza Trail is the first historic overland route established in 1775 to connect Sonora, Mexico to San Francisco, California. The U.S. National Park Service designated the Juan Bautista de Anza Trail as a National Historic Trail in 1978. Potential for cultural and historic resources within the Juan Bautista de Anza National Historic Trail alignment may require possible testing and/or data recovery in areas uncovered during construction operations. If any frontage roads are proposed on the Tohono O’odham San Xavier District, the Tohono O’odham Nation’s Cultural Affairs Department would need to be consulted for guidance.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 70 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4-11 – Section 4(f) & 6(f) Resources

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 71 I-19 Frontage Road Study January 2008 Working Paper No. 1 As the I-19 and related transportation corridors are constructed and improved to serve the rapidly growing populations of Pima and Santa Cruz Counties, compliance with existing local, state and federal legislation concerning cultural resources must be part of the planning process. It is expected that any transportation corridors selected across the study area will require additional archaeological surveying. Furthermore, it is estimated that archaeological sites identified within proposed transportation corridors will require testing and/or data recovery investigations to mitigate any potential impacts. Compliance with local, state, and federal cultural resources regulations will be a substantial component of any transportation corridor that is selected. Cultural resources clearance and compliance with existing legislation requires adequate time to account for agency reviews and possible testing and/or data recovery, which must be factored into the planning process.

4.2.11 Summary of Environmental Opportunities and Constraints This section summarizes the social and environmental issues that should be considered during future plan development. A summary of environmental opportunities and constraints is presented in Exhibit 4-13. The Tucson International Airport (KTUS) is located within 20,000 ft of the I-19 Frontage Road Study Area. Notification to the FAA Administrator is required if construction operations occur within a 20,000 ft radius of KTUS and exceed the 100:1 slope equation, based upon guidance standards as stipulated in 14 CFR Part 77, Objects Affecting Navigable Airspace, and explained in the Federal Aviation Administrator (FAA) Advisory Circular AC 70/7460-2K. Populations considered in the socioeconomic analysis are relatively high within the study area, with the exception of the disabled population. The dominant minority group is Hispanic, at 62.2 percent. The total American Indian and Alaska Native population, at 3.1 percent, is more than double the percentage within Santa Cruz County and higher than the percentage within Pima County. Review of individual census tracts within the study area displayed that standards were exceeded with the elderly population, the low-income population, and the female head-of-household population Additional considerations would be required for minority and environmental justice populations as the proposed study area is developed. The percent of LEP individuals, at 13.4 percent, is higher than the total percentage for Pima County and lower than the total percentage for Santa Cruz County. Five census tracts within the study area displayed LEP populations within the study area that exceeded 20 percent of the total population and would require considerations for LEP services. A re-evaluation of the socioeconomic demographic composition should be conducted at the block group level to determine minority and environmental justice impacts. Native vegetation, including riparian tree species and cacti, is present within the study area. During future design phases, additional consideration would be required to ensure that impacts to these species are minimized and that landscape firms and nurseries are afforded the opportunity for salvage. Animal species that live in the Sonoran Desert, the Semidesert Grasslands, and surrounding vegetative communities are unique but most are not protected by law. Minimizing impacts to that natural desert lands should be considered during final design. The San Xavier Nation maintains a list of species of special concern that would need to be addressed for future projects on the reservation. Critical wildlife linkages are within the study area. Further studies and/or surveys for habitat connectivity and biological value may be required as the I-19 Frontage Road plan is developed.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 72 I-19 Frontage Road Study January 2008 Working Paper No. 1 The USFWS list of Threatened and Endangered Species would need to be addressed for compliance with the Endangered Species Act for any future project. It may be necessary to conduct a survey for any one or all of the following species: southwestern willow flycatcher, and the yellow-billed cuckoo, Gila topminnow, and the Pima pineapple cactus. A survey will be required by a qualified noxious weed authority to determine if any noxious weeds are present within the study area boundaries. Proposed work within or adjacent to potential waters of the U.S. would require a jurisdictional delineation and USACE concurrence. A Section 404 Nationwide Permit (NWP) would be required if the proposed project impacts identified waters of the U.S. within the project limits. Additionally, a pre-construction notification (PCN) would be required if impacts exceeded 0.1 acre. Improvements that occur within or near waters of the U.S. would require a Section 401 Water Quality Certification. However if the proposed project is Conditionally Certified then a Section 401 Water Quality Certification would not be required. Improvements that disturb more than one acre of land would require a AZPDES permit. Additionally a SW3P would also be required. 100-year floodplains are located within the study area. Considerations would be required for proposed work that falls within the flood zone. Prime Farmlands are present within the study area. A farmland impact assessment is required in accordance with the Farmland Protection Policy Act if federal funds are used for any roadway improvements that require right-of-way acquisition of adjacent farmlands.

One air quality non-attainment area for PM10 and one maintenance areas for CO2 was identified within the study area. Proposed transportation projects that are within the non-attainment area and/or the maintenance area are required to meet the requirements of Title 40 of CFR Parts 51 and 93; to be listed in an approved Transportation Improvement Plan prior to construction; and must adhere to the air quality rules and ordinances of Pima County. A noise analysis would be required. The roadway improvements are located near residential noise receptors. If new R/W is to be acquired within the I-19 Frontage Road study area, a Phase I Environmental Site Assessment should be conducted to satisfy the requirements of The All Appropriate Inquiry Rule (CFR 40 312) and to allow the user a legal defense under the Landowner Liability Protections under CERCLA; as well as, provide the user with an account of the potential for the study area to have been impacted by contaminants. Twenty-five underground storage tank (UST) sites and ten leaking underground storage tank (LUST) sites were recorded within or immediately adjacent to the study area. Six hazardous material incidents occurred within or immediately adjacent to the study area. Additionally, records identified one NPL superfund site, one hazardous waste treatment, storage, or disposal facility, two landfills, and one Brownfield site within one mile of the study area. The results are summarized in Appendix B. Further coordination would be required if R/W acquisition or proposed construction actions will impact any existing UST or LUST sites. Section 4(f) coordination would be required if R/W acquisition of any 4(f) property is needed. The Anamax Neighborhood Park, a Section 6(f) property, is located within the study area. Coordination with the Arizona State Parks LWCF Grants Coordinator and the National Park Service would be required if proposed I-19 Frontage Roads improvements directly impact the Anamax Neighborhood Park. The density and diversity of the historic resources in the study area is high and includes 502 recorded sites and four historic districts within the review area.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 73 I-19 Frontage Road Study January 2008 Working Paper No. 1 Compliance with local, state, and federal cultural resources regulations will be required for future transportation improvements. Coordination is needed between ADOT and the State Land Department during preliminary planning and design for any widening of the interstate corridor and development of frontage roads in addressing the following: Access / Rights of Way Archaeological Clearances Plant Inventories Identification of any Jurisdictional Washes which may require 404 permitting Impacts from construction of culverts or other drainage structures. Land use considerations related to Traffic Interchanges.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 74 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4 -13– Summary of Environmental/Social Opportunities and Constraints

Corridor Environmental/Social Environmental/Social Constraints Opportunities

I-19 The I-19 Frontage Road Study area The Tucson International Airport (KTUS) is located within is approximately 63 miles in length. 20,000 ft of the study area. Notification to the FAA From the I-10 The identified constraints are varied Administrator is required if construction operations occur Junction to the in density throughout the study within a 20,000 ft radius of KTUS and exceed the 100:1 US/Mexico border area, therefore individual small slope equation. scale projects pertaining to the I-19 frontage road improvements may or With the exception of the disabled population, minority may not impact all identified and LEP populations considered in the Socioeconomic environmental and/or social Analysis are relatively high within the study area. constraints. Project specific Additional considerations should be given to Title IV, environmental documentation environmental justice, and LEP populations as the should be conducted to NEPA corridor is developed. standards prior to any I-19 frontage A re-evaluation of the socioeconomic demographic foad improvements to identify composition should be conducted at the block group level potential environmental and social to determine Title IV, environmental justice, and LEP impacts within the project area. impacts. Native vegetation, including riparian tree species and cacti, is present within the study area. During future design phases, additional consideration would be required to ensure that impacts to these species are minimized and that landscape firms and nurseries are afforded the opportunity for salvage. Animal species that live in the Sonoran Desert, Semidesert Grasslands, and surrounding vegetative communities are unique but most are not protected by law. Minimizing impacts to that natural desert lands should be considered during final design. The USFWS list of Threatened and Endangered Species would need to be addressed for compliance with the Endangered Species Act for any future work within the I- 19 Frontage Road study area. The San Xavier Nation maintains a list of species of special concern that would need to be addressed for future projects on the reservation. A noxious weeds survey would be required. Jurisdictional delineations would be required to determine waters of the U.S. A Section 404 NWP would be required if the project impacts waters of the U.S. A Section 401 Water Quality Certification would be required if the proposed project is not Conditionally Certified. Proposed projects that disturb more than one acre would require a AZPDES permit and a SW3P. 100 year floodplains exist within the study area. Farmlands are present within the study area. A farmland impact assessment would be required. Proposed projects that are within nonattainment areas and maintenance areas would adhere to federal, state, and local requirements.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 75 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 4 - 13– Summary of Environmental/Social Opportunities and Constraints (continued)

Corridor Environmental/Social Environmental/Social Constraints Opportunities

A noise analysis would be required if receptors are identified within the proposed project boundaries. 25 underground storage tank (UST) facilities and 10 leaking underground storage tank (LUST) facilities were recorded within or immediately adjacent to the study area (See Appendix B). 6 hazardous material incidents occurred within or immediately adjacent to the study area (See Appendix B). 1 NPL superfund site, 1 hazardous waste treatment, storage, or disposal facility, 2 landfills, and 1 Brownfield site are within one mile of the study area. A hazardous materials analysis following the ASTM Standards will be required for individual project limits. A Phase I ESA would be required if additional R/W is to be acquired by the proposed project. Section 4(f) coordination would be required for R/W acquisition of any 4(f) property. The Anamax Neighborhood Park, a Section 6(f) property, is located within the study area. Coordination with the Arizona State Parks LWCF Grants Coordinator and the National Park Service would be required if the proposed I- 19 frontage roads improvements directly impact the Anamax Neighborhood Park. The density and diversity of the historic resources in the study area is high and include 502 recorded sites and four historic districts within the review area (Appendix C). State Land Department coordination is required for impacts to State Lands

4.2.12 Summary of Land-Use and Jurisdiction, Local Perspectives, Opportunities and Constraints This section summarizes land-use, jurisdiction, and local perspectives within the study area and the potential opportunities and constraints to frontage road improvements that should be considered during future plan development. A summary of the land-use, jurisdiction, and local perspectives opportunities and constraints is presented in Exhibit 4-14.

4.3 Environmental Overview Conclusion The evaluation of the socioeconomic environment, physical and natural environmental character, cultural resources, and section 4(f) and 6(f) resources conducted for the I-19 Frontage Road Study Area indicates that proposed enhancements within the study area may potentially have substantial impacts on the quality of the human and natural environment. Any proposed enhancement within the I-19 Frontage Road Study Area would be required to comply with Title VI of the Civil Rights Act of 1964 and related statutes, the Endangered Species Act of 1973 as amended, the Migratory Bird Treaty Act of 1918, the Clean Water Act of 1977 as amended, the Clean Air Act of 1990 as amended, Section 4(f) of the Department of Transportation Act of 1966, Section 6(f)(3) of the Land and Water Conservation Fund Act of 1964, and the Historic Preservation

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 76 I-19 Frontage Road Study January 2008 Working Paper No. 1 Act of 1966 along with any governing Federal, State, County, and/or Local rules, regulations, and ordinances. The environmental and socioeconomic impact assessments may include, but is not limited to, special considerations for minority groups, additional studies and surveys, jurisdictional delineations, noise analysis and modeling, air analysis and modeling, environmental site assessments (ESA), prevention plans, various regulatory permits, and certifications, along with agency coordination and concurrences. The preceeding environmental overview evaluation is not intended to meet the requirements of the National Environmental Policy Act (NEPA). Exhibit 4-14 – Summary of Land-Use & Jurisdictions, Local Perspectives, and Constraints

Corridor Land Use and Local Perspectives Constraints Jurisdictions

I-19 Frontage Road x Private ownership- x Socioeconomic x Potential of R/W residential, minority populations. acquisition. From the I-10 Junction to the commercial, US/Mexico border agricultural, and x Historic properties x Considerations for undeveloped concern. socioeconomic properties. minority populations. x Preservation of x State Trust undeveloped natural x Existing Prime ownership- areas for visual and Farmland present. undeveloped natural species habitat x Considerations of areas. quality. impacts to listed x Public Use Airport x Preservation of species and habitat. located within 20,000 Section 4(f) and Section 6(f) x 100-year floodplains ft: Tucson present. International Airport Resources. (KTUS) x Noise receptors present. x San Xavier Indian Reservation x Existing hazardous material sites. x Identified Parks /Recreational Areas x FAA height adjacent to I-19 R/W: restrictions. LaMar Park, Anamax Neighborhood Park, x Eighty-six Section and Canoa Ranch. 4(f) Resources present: Two parks, one historic ranch, thirteen NRHP sites, four NRHP Historic Districts, and sixty-six NRHP eligible sites.

x Section 6(f) Resource present: the Anamax Neighborhood Park.

x The review area includes 502 recorded cultural resource sites and four historic districts.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 77 I-19 Frontage Road Study January 2008 Working Paper No. 1 5. PROJECTED FUTURE TRAFFIC VOLUMES The purpose of Chapter 5 is to document the projection of future traffic volumes on I-19 frontage roads segments. The forecast of future traffic volumes are two phased: 1) near-term (2017) forecasts based on existing traffic volumes adjusted to account for planned developments and 2) long-term (2030) forecast based on annual growth rates. As previously documented, the frontage road system from a mobility perspective, is virtually non- existent north of Continental Road. The frontage road segments that do exist north of Continental Road serve isolated developments. South of Continental Road, a significant frontage road system is in place. Consequently, near-term and long-term traffic volumes projections were developed for the existing frontage roads south of Continental Road.

5.1 Near-Term (2017) Traffic Projections To assist in traffic volumes projections, several recently completed studies were reviewed. These included the ADOT Southeast Arizona Regional Transportation Profile, the ADOT I-19 Corridor Study, and the City of Nogales Small Area Transportation Study. However, each of these studies resulted in limited information on the frontage road system, as the focus of the ADOT studies is on the interstate system and the focus of the local studies is on the local transportation network. Consequently, near- term traffic volumes forecasts are based on analysis of existing traffic data and the available information related to ongoing and proposed private development. Traffic volumes projections were developed for frontage roads south of Continental Road. A review of available traffic reports indicate that the majority of proposed private development is currently concentrated in three distinct areas – the west side of the Canoa Road interchange, the east side of the Rio Rico Drive interchange, and the area between Ruby Road and Country Club Road. Traffic projections for the frontage road system were based on information obtained pertaining to proposed developments and a general annual growth rate of 2.5 percent per year for those areas without specific developments. This growth rate is based on the Census population data for Santa Cruz County between 1995 and 2005. The resulting short-term (2017) traffic volume estimates are shown in Exhibit 5-1 and graphically in Exhibit 5-2. Canoa Road Area: The Canoa Road area has significant development that has been approved but not constructed within the Canoa Ranch planned area development. According to a 2007 study prepared by United Civil Group for ADOT, the Canoa Ranch development has only constructed approximately 25 percent of the planned residential units. In addition, there is supporting retail and commercial uses that have yet to be built. In all, there is potential for an additional 14,000 daily trips onto the adjacent roadway network. Impact to the I-19 west-side frontage road is anticipated to be minimal since the majority of the development will be south of Canoa Road and Canoa Road connects directly to an I-19 interchange. However, there will be an increase in traffic using the two-way west-side frontage road to access the Continental Road activity centers. Rio Rico Area: Near the Rio Rico Drive interchange, there is significant ongoing residential development related to the Rio Rico Country Club and surrounding communities. Residential development on the east side of I-19 is denser near the Rio Rico Drive interchange but extends both north and south towards Peck Canyon Road and Ruby Road, respectively. Access to the Rio Rico Drive area is primarily via Pendleton Drive, and is less reliant on the frontage roads. On the west side of I-19, residential development relies heavily on the I-19 frontage road. A potential town center may be

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 78 I-19 Frontage Road Study January 2008 Working Paper No. 1 located adjacent to the Rio Rico Drive interchange and will likely use the frontage road system to obtain partial access to commercial and office land uses. Ruby Road to Country Club Road Area: Significant short-term development is anticipated between Ruby Road and Country Club Road. On the east side of I-19, there are several commercial developments planned including a large “travel stop” gas station and hotel. In addition, there is significant existing industrial land uses just north of Ruby Road that will likely expand. On the west side of I-19, the development is largely residential including a large subdivision called Las Colinas Sagradas which will contain more than 1,000 homes. Development on both sides of I-19 will use the frontage road system exclusively for access.

5.2 Long-Term (2030) Traffic Projections Previously completed studies (I-19 Corridor Study, the Southeast Arizona RTP Study, Nogales Small Area Transportation Study) did not include development and documentation of long-term traffic volumes projections for the I-19 frontage roads, as the focus of these reports is on the interstate or the more developed areas of Nogales. As such, the long-term (2030) traffic volumes projections were developed based on the 2017 projections and an additional annual growth rate of 2.5 percent to account for continued residential growth in the foothills and interstate commercial/industrial development, both of which rely on the frontage road system. In addition, output data generated by available travel demand models was reviewed. Exhibit 5-3 displays 2030 traffic volumes projections. It should be noted that these volumes are based on existing knowledge of developments and general growth. Specific developments can skew these numbers depending on the size and location of the site however the County’s Comprehensive Plan has not supported recently proposed large-scale master-planned communities. The Sopori Ranch and Las Mesas master-planned communities have yet to obtain County approval or denial.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 79 I-19 Frontage Road Study January 2008 Working Paper No. 1 Exhibit 5-1 – Summary of Near-Term and Long-Term Traffic Volumes

Study I-19 East-Side 2007 Daily Traffic 2017 Daily Traffic 2030 Daily Traffic Segment Frontage Road Volumes Volumes Volumes 5 South of Continental 2,181 2,800 4,700 Road 7 South of Canoa Road 1,038 1,500 2,100

7 South of Arivaca 731 1,000 1,400 Road 7 South of Agua Linda 41 100 150

9 North of Aliso Springs 3,181 4,000 5,500 Road 9 South of Aliso Springs 1,347 1,700 2,300 Road 9 South of Santa 960 1,200 1,600 Gertrudis 13 North of Ruby Road 3,198 4,100 5,600

13 South of Ruby Road 2,823 10,000 13,600

I-19 West-Side Frontage Road 6 South of Continental 4,834 10,000 13,600 Road 6 North of Canoa Road 2,884 8,000 10,900

6 South of Canoa Road 850 1,500 2,100

6 North of Agua Linda 245 500 680

8 North of Aliso Springs 745 1,000 1,400

8 South of Aliso Springs 296 500 680

11 North of Peck Canyon 4,389 5,600 7,600

11 South of Peck Canyon 4,460 5,600 7,600

12 North of Ruby Road 5,845 8,000 10,900

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 80 I-19 Frontage Road Study January 2008 Working Paper No. 1 0GCTÄ6GTO &CKN[6TCHHKE8QNWOGU

CONTINENTAL ROAD MISSION TWIN BUTTES 10,000 CAMINO ENCANTO 2,800

CALLE TRES

8,000

CANOA ROAD

1,500

ELEPHANT HEAD ROAD ARIVACA RD

AMADO 1,000

500 AGUA LINDA ROAD 100

CHAVEZ SIDING

ROAD 4,000

1,000 TUBAC ROAD

500 TUBAC 1,700 TUMACACORI

TUMACACORI 1,200 PALO PARADO ROAD

PECK CANYON ROAD

5,600 5,600

RIO RICO DRIVE

PENDLETON DRIVE 4,100

8,000 RUBY ROAD

10,000 15,000 COUNTRY CLUB ROAD MARIPOSA ROAD XXXX Daily Traffic Volumes WESTERN AVE NOGALES

'ZJKDKVÄ .QPIÄ6GTO &CKN[6TCHHKE8QNWOGU

CONTINENTAL ROAD MISSION TWIN BUTTES 13,600 CAMINO ENCANTO 4,700

CALLE TRES

10,900 CANOA ROAD

2,100

ELEPHANT HEAD ROAD ARIVACA RD

AMADO 1,400

680 AGUA LINDA ROAD 150

CHAVEZ SIDING

ROAD 5,500

1,400 TUBAC ROAD

680 TUBAC 2,300 TUMACACORI

TUMACACORI 1,600 PALO PARADO ROAD

PECK CANYON ROAD

7,600 7,600

RIO RICO DRIVE

PENDLETON DRIVE 5,600

10,900 RUBY ROAD

13,600 20,400 COUNTRY CLUB ROAD MARIPOSA ROAD XXXX Daily Traffic Volumes WESTERN AVE NOGALES

'ZJKDKVÄ 6. CONCLUSIONS

6.1 Transportation Conclusions The following conclusions were drawn regarding existing transportation conditions on the frontage roads: 1. The frontage roads are discontinuous throughout the study area. Gaps are located in seven areas on the west side frontage roads and six areas on the east side frontage roads. These gaps are located at: West-Side Frontage Road Gaps I-10 to Valencia Road – 3.9 miles Valencia Road to Duval Mine Road -15.7 miles South of Duval Mine Road to Continental Road - 3.8 miles South of Agua Linda Road to north of Chavez Siding Road - 0.73 miles South of Tubac Road to north of Palo Parado Road -1.75 miles Rio Rico to north of Ruby Road - 0.77 miles South of Country Club Road to Border - 4.5 miles

East-Side Frontage Road Gaps I-10 to north of Duval Mine Road – 18.95 miles South of Continental Road to north of Canoa Road – 1.2 miles South of Agua Linda to north of Chavez Siding Road – 0.91 miles South of Palo Parado to Peck Canyon Road – 1.42 miles South of Peck Canyon Road to north of Rio Rico Road – 2.2 miles North of Country Club Road to Border – the frontage road intersects Grand Avenue

2. The frontage roads in the study area are primarily two-way facilities, with the exception of a segment on the east side of I-19 north of Ruby Road. 3. Access is uncontrolled throughout all of the frontage road segments. 4. The existing level of service is C or better on all frontage road segments. 5. Speed limits vary significantly throughout the frontage roads. 6. In all cases, the two-way frontage roads intersect crossroads at separate locations from the interchange ramps. Frontage roads that have 200 feet separation between the frontage road and the ramps are at Valencia Road, Duval Mine Road, Arivaca Road (west side), Chavez Siding Road, Tubac, Tumacacori, Rio Rico Road and Ruby Road (the east-side frontage road and the west –side frontage road on the north side of the interchange). Interchanges with a tighter spacing (less than 200 feet) between freeway ramps and the frontage roads are at Continental Road, Canoa Road, Agua Linda Road, Palo Parado Road, Peck Canyon Road, and the west-side frontage road on the south side of the Ruby Road interchange. 7. There are a total of 417 access points along the 63.42 miles of frontage road that exists within the study area. This equates to approximately 6 to 7 access points per mile, or approximately 1 access point for every 800 feet of frontage road. Frontage road segments with greater than the average number of access points per mile are:

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 83 I-19 Frontage Road Study January 2008 Working Paper No. 1 West-Side Frontage Road Segments with Greater East-Side Frontage Road Segments with Greater than Average Number of Access Points than Average Number of Access Points

Segment 3 - Duval Mine Road TI to 0.5 Segment 2 - North of Duval Mine TI to miles south of TI Duval Mine Road TI Segment 11 - 0.4 miles north of I-19 / Segment 9 - South of Palo Parado Palo Parado Road TI to Rio Rico Road interchange to 0.6 miles north of Chavez Siding Road Segment 13 - Intersection with Grand Avenue to 0.5 miles north of I-19 / Rio Rico Road Interchange

8. The predominant crash type for the frontage roads is single vehicle crashes, accounting for 35 percent of all crashes. Rear end crashes and angle crashes are the next most common types of crashes. 9. Of the 246 total crashes over the five year period, 155 of the crashes resulted in no injury, accounting for 63 percent of the total crashes. 35 crashes resulted in non-incapacitating injuries and another 32 crashes resulted in possible injury. There were 10 crashes resulting in incapacitating injuries and 9 crashes were of unknown severity. Of the 5 reported fatalities, 3 of them occurred on the west-side frontage road between Continental Rd and Calle Tres. 10. The east-side frontage road segment from Continental Road to 0.2 miles south of Continental Road has the highest number of crashes with a total of 30 crashes over the five year period. 11. A number of frontage road segments had no crashes in the 5-year period. Those segments are:

West-Side Frontage Road Segments with No East-Side Frontage Road Segments with No Crashes, 2001-2005 Crashes 2001-2005

Canoa Road to Arivaca Road 0.6 miles north of Chavez Siding Road to Chavez Siding TI Arivaca Road to Agua Linda Road Palo Parado TI to south of Palo Parado TI

Aliso Springs Road to 2.2 miles south of Tubac TI 0.4 miles north of Palo Parado TI to Palo Parado TI

12. The average severity index for all segments is 1.60. The severity indices range from 0.50 occurring on the west-side frontage road segment 1 from I-19 / Valencia Road TI to 0.9 miles south of I-19/ Valencia Road TI ) to 3.40, occurring on west-side frontage road Segment 8 - north of Chavez Siding Road TI to Chavez Siding Road). There are nine segments with severity indices over the average and fifteen below the average.

6.2 Environmental Conclusions 13. The environmental evaluation indicates that proposed projects within the study area may potentially have substantial impacts on the quality of the human and natural environment. 14. Any proposed enhancement within the I-19 Frontage Road Study Area would be required to comply with Title VI of the Civil Rights Act of 1964 and related statutes, the Endangered Species Act of 1973 as amended, the Migratory Bird Treaty Act of 1918, the Clean Water Act of 1977 as amended, the Clean Air Act of 1990 as amended, Section 4(f) of the Department of Transportation Act of 1966, Section 6(f)(3) of the Land and Water Conservation Fund Act of 1964, and the Historic Preservation Act of 1966 along with any governing Federal, State, County, and/or Local rules, regulations, and ordinances. This may include, but is not limited to, special considerations for

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 84 I-19 Frontage Road Study January 2008 Working Paper No. 1 minority groups, additional studies and surveys, jurisdictional delineations, noise analysis and modeling, air analysis and modeling, environmental site assessments (ESA), prevention plans, various regulatory permits, and certifications, along with agency coordination and concurrences.

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 85 I-19 Frontage Road Study January 2008 Working Paper No. 1 APPENDIX – ENVIRONMENTAL OVERVIEW SUPPORTING MATERIALS

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 86 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix A Listed and Proposed Threatened and Endangered Species

Appendix A.1 USFWS Listed and Proposed Species that May Occur in Pima County and Santa Cruz County, Arizona

Habitat Elevation County Common Name Species Status Range (Ft above MSL) Birds Both California Brown Pelican Pelecanus occidentalis californicus E Varies Pima Masked Bobwhite Colinus virginianus ridgewayi E 1,000-4,000 Both Mexican Spotted Owl Strix occidentalis lucida T 4,100-9,000 Santa Cruz Northern Aplomado Falcon Falco femoralis septentrionalis E 3,500-9,000 Both Southwestern Willow Flycatcher Empidonax traillii extimus E <8,500 Both Yellow-Billed Cuckoo Coccyzus americanus C <6,500 Amphibian Both Chiricahua Leopard Frog Rana chiricahuensis T 3,300-8,900 Santa Cruz Sonora Tiger Salamander Ambystoma tigrinum stebbinsi E 4,000-6,300 Fish Both Desert Pupfish Cyprinodon macularius E <5,000 Both Gila Chub Gila intermedia E 2,000-5,500 Both Gila Topminnow Poeciliopsis occidentalis occidentalis E <4,500 Santa Cruz Sonora Chub Gila ditaenia T 3,900 Mammal Both Jaguar Panthera onca E 1,600->9,000 Both Lesser Long-Nosed Bat Leptonycteris curasoae yerbabuenae E <6,000 Both Ocelot Leopardus (=Felis) pardalis E <8,000 Pima Sonoran Pronghorn Antilocapra Americana sonoriensis E 500-2,000 Reptile Pima Sonoyta Mud Turtle Kinosternon sonoriense longifemorale C 1,100 Insect Santa Cruz Stephan’s Riffle Beetle Heterelmis stephani C 5,100-6,600 Mollusc Santa Cruz Huachuca Springsnail Pyrgulopsis thompsoni C 4,500-7,200 Plants Pima Acuna Cactus Echinomastus erectocentrus acunensis C 1,300-2,000 Santa Cruz Canelo Hills Ladies’-tressess Spiranthes delitescens E ~ 5,000 Both Huachuca Water Umbel Lilaeopsis schaffneriana ssp. Recurva E 3,500-6,500 Pima Kearney Blue Star Amsonia kearneyana E 3,600-3,800 Pima Nichol’s Turk’s Head Cactus Echinocactus horizonthalonius var nicholii E 2,400-4,100 Both Pima Pineapple Cactus Coryphantha scheeri var. robustispina E 2,300-5,000 Total Endangered, Threatened, and Candidate Species: 25

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 87 I-19 Frontage Road Study January 2008 Working Paper No. 1 Key: E — Endangered T — Threatened CH — Critical Habitat PE — Taxa proposed for listing as endangered PT — Taxa proposed for listing as threatened

PCH — Critical habitat which has been proposed C — Candidate species for which the Fish and Wildlife Service has on file sufficient information on the biological vulnerability and threats to support proposals to list as endangered or threatened

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 88 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix A.2 AGFD Sensitive Species List Identified within the I-19 Frontage Road Study Area for Pima County and Santa Cruz County, Arizona

ESA USFS BLM State Common Name Species Status Status Status Status

Birds Santa Cruz Black-bellied Whistling Duck Dendrocygna autumnalis ------WSC Santa Cruz Black-capped Gnatcatcher Polioptila nigriceps ------WSC Santa Cruz Northern Gray Hawk Buteo nitidus maxima SC S -- WSC Santa Cruz Southwestern Willow Flycatcher Empidonax traillii extimus LE S -- WSC Santa Cruz Thick-billed Kingbird Tyrannus melancholicus ------WSC Both Tropical Kingbird Tryannus melancholicus ------WSC Santa Cruz Violet-crowned Hummingbird Amazilia violiceps ------WSC Pima Western Burrowing Owl Athene cunicularia hypugaea SC -- S -- Both Western Yellow-billed Cuckoo Coccyzus americanus occidentalis C S WSC Amphibian Both Great Plains Narrow-mouthed Gastrophryne olivacea ------WSC Toad Both Lowland Leopard Frog Rana yavapaiensis SC S -- WSC Fish Santa Cruz Desert Sucker Catostomus clarki SC -- S -- Santa Cruz Gila Longfin Dace Agosia chrysogaster chrysogaster SC -- S -- Santa Cruz Gila Topminnow Poeciliopsis occidentalis occidentalis LE -- -- WSC Santa Cruz Sonora Sucker Catostomus insignis SC -- S -- Mammal Pima California Leaf-nosed Bat Macrotus californicus SC -- -- WSC Pima Cave Myotis Myotis velifer SC -- S -- Pima Pocketed Free-tailed bat Nyctinomops femorosaccus -- -- S -- Santa Cruz Yellow-nosed Cotton Rat Sigmodon ochrognathus SC ------Reptile Both Giant Spotted Whiptail Aspidoscelis burti stictogrammus SC S S -- Santa Cruz Northern Mexican Gartersnake Thamnophis eques megalops SC S -- WSC Plants Both Arizona Passionflower Passiflora arizonica -- S -- -- Santa Cruz Broad-leaf Ground-cherry Physalis latiphysa -- S -- -- Santa Cruz Chiltepin Capsicum annuum var. glabriusculum -- S -- -- Santa Cruz Large-flowered Blue Star Amsonia grandiflora SC S -- -- Both Pima Pineapple Cactus Coryphantha scheeri var. robustispina LE -- -- HS Santa Cruz Santa Cruz Beehive Cactus Coryphantha recurvata -- S -- HS Both Staghorn Cholla Opuntia versicolor ------SR Pima Tumamoc Globeberry Tumamoca macdougalii -- S S SR

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 89 I-19 Frontage Road Study January 2008 Working Paper No. 1 ESA USFS BLM State Common Name Species Status Status Status Status

Total State Sensitive Species: 16 12 8 17 * Key on following page. Key: ESA Status – Endangered Species Act (1973 as amended) LE – Listed Endangered: imminent jeopardy of extinction. LT – Listed Threatened: imminent jeopardy of becoming Endangered. XN – Experimental nonessential population. PE – Proposed Endangered PT – Proposed Threatened C – Candidate: Species for which USFWS has sufficient information on biological vulnerability and threats to support proposals to list as Endangered or Threatened under ESA. However, proposed rules have not yet been issued because such actions are precluded at present by other listing activity. SC – Species of Concern: The terms "Species of Concern" or "Species at Risk" should be considered as terms-of-art that describe the entire realm of taxa whose conservation status may be of concern to the US Fish and Wildlife Service, but neither term has official status (currently all former C2 species).

USFS Status – US Forest Service (1999 Animals, 1999 Plants) S – Sensitive: those taxa occurring on National Forests in Arizona which are considered sensitive by the Regional Forester.

BLM Status – US Bureau of Land Management (2000 Animals, 2000 Plants) S – Sensitive: those taxa occurring on BLM Field Office Lands in Arizona which are considered sensitive by the Arizona State Office. P – Population: only those populations of Banded Gila monster (Heloderma suspectum cinctum) that occur north and west of the Colorado River, are considered sensitive by the Arizona State Office.

State Status – Arizona Native Plant Law (1993) HS – Highly safeguarded: no collection allowed. SR – Salvage Restricted: collection only with permit. ER – Export Restricted: transport out of State prohibited. SA – Salvage Assessed: permits required to remove live trees. HR – Harvest Restricted: permits required to remove plant by-products. WSC – Wildlife of Special Concern in Arizona. Species whose occurrence in Arizona is or may be in jeopardy, or with known or perceived threats or population declines, as described by the Arizona Game and Fish Department's listing of Wildlife of Special Concern in Arizona (WSCA, in prep). Species indicated on printouts as WC are currently the same as those in Threatened Native Wildlife in Arizona (1988).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 90 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix B Hazardous Material Database Search Results

Appendix B.1 Underground Storage Tanks (UST) Database Search Results within the I- 19 Frontage Road Study Area

Facility Facility Name Address/ Status ID Location 0-000639 Barnett & Dezol Cont. 701 W. Silverlake Road 3 tanks: 3 tanks removed 12-14-1989 Inc. Tucson, AZ 85713 0-002903 Kushmaul Machine & 2210 S. Freeway Road 3 tanks: 1 tank closed in place 1-1- Engineering Tucson, AZ 85713 1984; 2 tanks removed 6-1-1989 & 10-4-2002 0-006277 Carl Gremmler 527 W. 29th Street 3 tanks: 3 tank removed 12-23-1990 Tucson, AZ 85713 0-002782 Giant #924 761 W. Ajo Way 4 tanks: 4 tanks in use Tucson, AZ 85713 0-005166 “Tucson, City of – 5900 S. 12th Avenue 1 tank: 1 tank removed 6-11-1996 Mission Park” Tucson, AZ 85706 0-002861 K-Mart #3134 850 W. Valencia Road 1 tank: 1 tank removed 1-15-1990 Tucson, AZ 85706 0-000051 Rinker Materials 1000 W. Valencia Road 8 tanks: 8 tanks removed 7-17-1987 Tucson, AZ 85706 0-004265 Sahuarita Unified 350 W. Sahuarita Road 5 tanks: 5 tanks removed 6-1-1993 School District #30 Sahuarita, AZ 85629 0-009132 The Grand Station 1051 W. Beta Street 4 tanks: 4 tanks in use Green Valley, AZ 85614 0-002447 Haven Golf Course 110 N. Abrego Drive 1 tank: 1 tank removed 11-10-1988 Green Valley, AZ 85614 0-006893 USPS- Green Valley 50 E. Continental Road 1 tank: 1 tank removed 6-12-1997 Green Valley, AZ 85614 0-006777 Country Club of Green 1070 N. Paseo De Golf 1 tank: 1 tank removed 1-22-1991 Valley Green Valley, AZ 85614 0-002005 Esperanza Exxon 61 W. Esperanza Blvd. 10 tanks: 4 tanks in use; 6 tanks Green Valley, AZ 85614 removed 8-29-1994 0-004906 Texaco – Hwy I-19 80 E. Esperanza Blvd 4 tanks: 3 tanks in use; 1 tank Green Valley, AZ 85614 removed 9-15-2004 0-006390 Devco Corp Inc. 171 W. Continental 4 tanks: 4 tanks in use Road Green Valley, AZ 85614 0-001778 Desert Hills Golf Club 2500 S. Circulo De Las 1 tank: 1 tank removed 12-10-1992 Lomas Green Valley, AZ 85614 0-007162 Luna Service Station 2877 E. Frontage Road 4 tanks: 4 tanks removed 12-28-1990 Amado, AZ 85645 0-006288 Amado Mini Market 28770 Old Nogales 4 tanks: 2 tanks in use; 2 tanks Hwy removed 12-1-1988 Amado, AZ 85645 0-007145 Mountain View RV Amado, AZ 2 tanks: 2 tanks removed 12-01-1990 Ranch 0-008196 Levi Yoder US Hwy 89 & Arivaca 2 tanks: 2 tanks in use Arivaca, AZ 0-008865 Garter Station 2 Plaza Street 2 tanks: 2 tanks removed 4-3-1996 Tubac, AZ 85646 0-006498 Scotty Texaco 2012 E. Frontage Road 3 tanks: 3 tanks removed 1-25-1993 Tumacacori, AZ 85640

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 91 I-19 Frontage Road Study January 2008 Working Paper No. 1 Facility Facility Name Address/ Status ID Location 0-008221 USDOI NPS Tuma- Tumacacori Historic 1 tank: 1 tank removed 12-13-1993 cacori Natl Historic Park Park Tumacacori, AZ 0-005831 Tumacacori Mini 1968 Nogales Hwy 2 tanks: 2 tanks removed 6-30-2006 Market Nogales, AZ 85621 0-009133 Santa Cruz Valley 1411 W. Frontage Road 3 tanks: 2 tanks closed in place 1-16- Unified School Dist Rio Rico, AZ 85648 2001& 12-10-1999; 1 tank removed 1- #35 16-2001 0-006291 Rio Rico Service 1041 Yavapai Drive 3 tanks: 3 tanks in use Center Inc. Rio Rico, AZ 85648 0-009766 Gas 4 Less 1131 W. Frontage Road 1 tank: 1 tank in use Rio Rico, AZ 85648 0-009491 Pilot Travel Center 769 E. Frontage Road 5 tanks: 5 tanks in use #279 Rio Rico, AZ 85648 0-003954 USGSA 9 N Grand Avenue 1 tank: 1 tank removed 11-9-1989 Nogales, AZ 85621

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 92 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix B.2 Leaking Underground Storage Tanks (LUST) Database Search Results within the I-19 Frontage Road Study Area

Facility ID Facility Name Address/Location Status 0-002903 Kushmaul 2210 S. Freeway Road 1 case file –closed 3-15-91, priority Machine & Tucson, AZ 85713 level 5R1 Engineering 0-002782 Giant #924 761 W. Ajo Way 2 case files –closed 8-1-95 & 9-14- Tucson, AZ 85713 95, priority level 1D 0-005166 “Tucson, City of – 5900 S. 12th Avenue 1 case file –closed 11-6-96, priority Mission Park” Tucson, AZ 85706 level 5R1 0-004265 Sahuarita Unified 350 W. Sahuarita Road 1 case file –closed 6-18-97, priority School District Sahuarita, AZ 85629 level 5R1 #30 0-006777 Country Club of 1070 N. Paseo De Golf 1 case file –closed 8-15-94, priority Green Valley Green Valley, AZ 85614 level 5R1 0-002005 Esperanza Exxon 61 W. Esperanza Blvd. 6 case files – 4 closed 7-12-96, Green Valley, AZ 85614 priority level 5R1; 1 closed 6-18-02, priority 5R1; 1 open, priority 2 0-004906 Texaco – Hwy I- 80 E. Esperanza Blvd 2 case files – closed 8-31-98 & 10- 19 Green Valley, AZ 85614 12-05, priority level 5R1 0-007162 Luna Service 2877 E. Frontage Road 1 case file –closed 12-11-02, priority Station Amado, AZ 85645 level 5R1 0-009133 Santa Cruz Valley 1411 W. Frontage Road 1 case file –closed 4-5-06, priority Unified School Rio Rico, AZ 85648 level 5R1 Dist #35 0-006291 Rio Rico Service 1041 Yavapai Drive 9 case files – 4 closed 8-29-00, Center Inc. Rio Rico, AZ 85648 priority level 5R1; 5 open, priority 2

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 93 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix B.3 Incident Logbook Database Search Results within I-19 Frontage Roads Study Area

Incident ID Incident Address/Location Chemical Quantity Date I-19, MP 47 01-042-H 1/02/2001 Sulfuric Acid 10,000 gal Sahuarita I-19 at KM Post 98.2 97-005-H 2/27/1997 Diesel Fuel unknown San Xavier I-19 at I-10, 87-188 8/26/1987 westbound Sulfuric Acid 30-50 gal Tucson 2miles north of I-19, Acetic Acid, 98-013-D 7/23/1997 1-10 gal Exit 22, Nogales etc. 10/09/199 I-19, Exit 17 offramp 00-023-H Gasoline 20 gal 9 Rio Rico Unknown Distance East of I-19, off 96-020-H 4/17/1996 Solvents, Oil 150 gal Gasoline Road, San Xavier

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 94 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix C Cultural Resources Database Search Results

Appendix C.1 AZSITE Cultural Resource Database Results on Cultural Projects within the I-19 Frontage Road Review Area

AZSITE Project No. Agency Number Project Description References Number 1 1964-8.ASM I-19, Tucson to Nogales 8727 2 1966-6.ASM Materials Pit #7484 11346 3 1976-2.ASM Green Valley Sewers Project 8900 4 1978-24.ASM Materials Pit #6534 8755 5 1979-38.ASM Santa Cruz River Park Survey 8086 Santa Clara Apartment Complex, 6 1980-2.ASM 8254 NE Corner of I-19 and Valencia 7 1980-3.ASM La Casa Del Sur 15899 8 1980-106.ASM Green Valley State Land Survey 8901 Kennedy Park Estates/Mission 9 1980-114.ASM 8253 Knolls I, Mission Road North of Ajo Mission Valley Estates and 10 1980-127.ASM 15898 Mission Valley Estates III Pima County Department of 11 1980-135.ASM Transportation and Flood Control 11398 District Valencia Road Survey 12 1980-155.ASM Santa Cruz/SW Interceptor Project 8315 U.S. Home Feasibility Study on 30 13 1981-20.ASM Acre Parcel in Green Valley for 8907 OPW 14 1981-44.ASM Liberty Manor Estates 8322 15 1981-52.ASM Villas del Rey Apartments 8325 16 1981-54.ASM Mission Vista Subdivision 8777 Clearance Survey of Lakewood 17 1982-190.ASM 11418 Estates, Amado, Pima County Tucson-Apache 115 kV 18 1982-207.ASM 5042 Transmission Line The San Xavier Archaeological 19 1983-96.ASM 8029 Project San Xavier Mission Rd. Bridge 20 1983-200.ASM 8789 Repair ADOT Materials Pit #6929 & 7358 21 1984-96.ASM 11345 Survey ADOT Materials Pit #999, Santa 22 1984-126.ASM 8859 Cruz County Four Parcels of Land in Santa 23 1984-127.ASM Cruz County for Vernon Swaback 8846 Associates Doelle et al. 24 1984-158.ASM Southern Tucson Basin Survey 8797 (1985) Archaeological Investigations of 25 1985-184.ASM 8260 Project I-19-1-401, Tucson Tucson Aqueduct Project - Phase 26 1986-109.ASM 8105 B La Canada Drive Road 27 1986-139.ASM 14038 Improvement 28 1986-146.ASM Green Valley American Legion 8923 29 1986-163.ASM Nogales Wash - Potrero Creek 12164 30 1986-181.ASM Unknown 5112 Archaeological Survey and Test 31 1986-206.ASM Excavation at the Roman Site (AZ 8861 EE:1:164(ASM)) US Postal Service Green Valley 32 1987-46.ASM 8865 Post Office Site, Pima County 33 1987-125.ASM Green Valley Water 11445

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 95 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number Archaeological Clearance Surveys of 9 House Lots for Papago 34 1987-140.ASM 8036 Housing Authority, San Xavier District 35 1987-206.ASM Valencia Bridge bank protection 15897 U.S. Telecom Buried Fiber Optic O'Brien et al. 36 1987-222.ASM 5131 Cable (1987) 37 1988-22.ASM ASARCO Buried Water Line 8106 38 1988-177.ASM TAP Reach 6 terminus survey 15894 Preliminary Survey for the Roadway Alignment Alternatives 39 1988-240.ASM Stephen (1989) 135 within the Sahuarita Corridor Study 40 1989-4.ASM unknown 8926 41 1989-19.ASM Santa Cruz Co. Landfill 8932 State Lease No. 03-907-03 42 1989-63.ASM Archaeological Exploration (PAST 8874 Job No. 89214) 43 1989-104.ASM SAWRSA Farm Rehabilitation 8068 44 1989-150.ASM Acorn Survey 12557 Archaeological Survey of a Power 45 1989-153.ASM Transmission ROW, Desert Hills 8843 Lutheran Church, Green Valley Archaeological Survey of a Power Transmission Line ROW, Desert 46 1989-154.ASM 8844 Hills Lutheran Church, Green Valley City of Tucson Silverlake Road 47 1989-192.ASM 8238 Survey Proposed Landfill Expansion Area 48 1989-195.ASM North of Tubac Near Chavez 8873 Siding, Santa Cruz County Archaeological Survey of City of 49 1990-76.ASM Tucson TCE Extraction Well and Mabry (1990) 8263 Treatment Facility Sites Amado Archaeological Exploration 50 1990-122.ASM 8885 (PAST Job No. 90255) Archaeological Survey of Water 51 1990-163.ASM 8239 Plant No. 1 Expansion Project Michigan Street-12th Avenue Main 52 1991-82.ASM Replacement Plan No. 1-197-161- 8264 90 El Paso Natural Gas Company 53 1991-123.ASM Twin Buttes Pipeline, Pima and 8853 Santa Cruz Counties 54 1991-183.ASM Ormsby Park Main Survey 229 55 1991-203.ASM Green Valley Tubac Survey 249 56 1991-254.ASM Amado - Tumacacori Survey 298 57 1991-278.ASM 12th Ave Tarp Pipline Survey 322 58 1992-24.ASM unknown 513 59 1992-77.ASM Pima Mine Road Survey 643 60 1992-78.ASM Continental Road Survey 14037 Mariposa Road (SR 189) 61 1992-133.ASM 396 Upgrading Project ROW Survey along SR 189, 62 1992-165.ASM 430 Arizona 63 1992-219.ASM South Tucson Project Eppley (1992) 490 64 1992-241.ASM FHP Arch. Survey 515 Slaughter and 65 1992-247.ASM Pima County Landfill Survey 521 Roberts (1992) Archaeological Survey of the 66 1993-87.ASM Goetze (1993) 1037 Intersection of Drexe

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 96 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number Valencia Road and 6th Avenue 67 1993-162.ASM Thiel (1993j) 738 Survey 68 1993-165.ASM Airport Wash Survey Mehren, John 741 Missiondale and Thoroughbred 69 1993-172.ASM Thiel (1993m) 749 Survey 70 1993-213.ASM Julian/Rodeo Wash Survey Slawson (1993a) 795 71 1993-261.ASM Elephant Head Survey Doak (1993) 848 72 1993-289.ASM Nogales Housing Authority Survey Sullivan (1993) 878 Cottonwood Lane Riprap 73 1993-361.ASM Sullivan (1993) 958 Construction Project 74 1994-76.ASM Frank Reed Road Eighmey (1994) 1500 75 1994-132.ASM San Xavier Survey Bayman (1994) 1088 76 1994-172.ASM SR 86 Harmon (1994) 1132 77 1994-179.ASM Old Tucson Road Stone (1994) 1139 78 1994-283.ASM Las Campanas Survey 1253 Pennsylvania-6th Main 79 1994-324.ASM Eppley (1994) 1299 Replacement Survey 80 1994-404.ASM Continental Road, Section 22 Stephen (1994) 1388 81 1995-4.ASM Indian Agency Road Testing Dart (1995e) 1854 Tucson-Nogales Fiber Optics Adams and 82 1995-72.ASM 1909 ROW Hoffman (1995) 83 1995-141.ASM HUD Housing Evaluation Swartz (1995) 1572 Southside Main Replacement A. Freeman 84 1995-142.ASM 1573 Survey (1995) Avra Valley - Valencia Road 85 1995-148.ASM Swartz (1995) 1579 Survey 86 1995-174.ASM Hacienda De Las Flores Survey Slawson (1995) 1608 87 1995-180.ASM Pena Blanca Survey Doak (1995) 1615 Section 33 & 34 (ASLD NO.53- 88 1995-220.ASM Stephen (1995) 1657 99805) 89 1995-221.ASM Sec 2 & 3 (ASARCO #53-9984) Stephen (1995) 1658 90 1995-244.ASM Valle Verde Survey Jones (1995) 1683 91 1995-276.ASM Continental Survey Carpenter (1995) 1718 92 1995-324.ASM Irvington-Valley View Survey Swartz (1995) 1772 93 1995-328.ASM Cottonwood/40th St. Survey Swartz (1995) 1776 94 1995-329.ASM 22nd-Osborne Drainage Survey Swartz (1995) 1777 Indian Agencey Road Phase 2 95 1995-347.ASM Jones (1996) 1797 (IAZ) 480 Acres for ASARCO, in Twin Klucas and 96 1995-377.ASM 1830 Buttes Carpenter 1995 97 1995-389.ASM Sahuarita High Myers (1995) 1842 98 1995-392.ASM Speedway/Ajo Pipeline Swartz (1996) 1846 99 1995-401.ASM Valencia Road Stone (1995) 1857 100 1995-403.ASM I-19/Chavez Siding Barz (1995) 1859 Rancho Sahuarita Archaeological Stephen et al. 101 1995-480.ASM 9464 Survey (1997) 102 1996-43.ASM Irvington Road Eppley (1996) 2031 103 1996-45.ASM San Xavier Wallace (1996) 2033 104 1996-100.ASM Martinez Hill Well Site Swartz (1996) 1941 105 1996-133.ASM Sahuarita Landfill 1974 Archaeological/Historical Resource Survey of the US Postal 106 1996-227.ASM 8879 Service Sahuarita, AZ Site Acquisition 107 1996-246.ASM Papago Road Survey 8829 108 1996-315.ASM I-19 Bridges 8831 109 1996-389.ASM ADOT/Business 19/Nogales Stone (1997) 7619 110 1996-393.ASM State Route 189/Nogales 7620 Interstate-19 Between Nogales 111 1996-408.ASM Lite et al. (1996) 2249 and Amado An Archaeological Assessment of 112 1996-422.ASM 8880 a Two Acre Parcel in Green 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 97 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number Valley, Pima County, Arizona Archaeological Assessment of a 113 1996-424.ASM One Acre Parcel in Green Valley, 8881 Pima County, Arizona Archaeological Assessment of a 114 1996-431.ASM 1.5 Acre Parcel in Green Valley, 8882 Pima County, Arizona 115 1996-432.ASM ASARCO at Pima Mine Road 8832 Miscellaneous Monitoring for 116 1996-480.ASM 10249 Southwest Gas Kino Community Center 117 1997-28.ASM 8266 Reclaimed Water Main Project Southside Gravity Main 118 1997-73.ASM 8268 Rehabilitation Project 119 1997-113.ASM Martinez Hill Survey 8750 120 1997-115.ASM Unknown 7637 121 1997-122.ASM Sopori Survey 8883 122 1997-146.ASM Business-19 / SR 189 / Nogales Lite (1997) 2218 123 1997-234.ASM Hospital Assessments Lindeman (1997) 2388 124 1997-237.ASM Martinez Hill Access Road Survey Stevens (1997) 2383 125 1997-257.ASM Pantano to Bicknell/Vail to Bicknell 2413 126 1997-303.ASM SR 289 Nogales Maintenance 8682 Archaeological Survey for the 127 1997-320.ASM 22nd Street and I-10 Area Main 8060 Replacement Project 22nd Street/ Santa Rita Main 128 1997-322.ASM 7812 Survey 129 1997-423.ASM Nogales Survey 7187 130 1998-15.ASM 119 & Pima Mine Road Survey 7841 Silverlake DPI: I-10 to Mission 131 1998-36.ASM 6791 Survey 132 1998-37.ASM Cherry Avenue Main Survey 6794 133 1998-43.ASM 6th Ave. I-10 to Ajo Way Survey 7380 Bikepath Survey: Irvington 134 1998-62.ASM 7399 between 6th Avenue to P Arivaca Sewer Line Survey, 135 1998-70.ASM through the Canoa Ranch 8855 Property, Pima County 136 1998-99.ASM Rio Rico Survey 7198 137 1998-138.ASM San Xavier Trailer Survey 7243 138 1998-141.ASM Drexel/Mission Main Survey 7246 Green Valley: Assisted Living 139 1998-186.ASM 7898 Survey San Xavier Mission Plaza (Plan B) 140 1998-204.ASM 9437 Survey 141 1998-205.ASM La Canada Road Survey 7902 142 1998-244.ASM ADOT- Tucson I 7905 A Cultural Resource Survey of 143 1998-253.ASM 12.6 Acres near Tubac, Santa 7756 Cruz County, Arizona 144 1998-266.ASM 6th Ave- 18th St. to I-10 Survey 9112 Intersection of San Fernando 145 1998-313.ASM 8269 Road and Valencia Road, Tucson Irvington Road and Ninth Avenue 146 1998-314.ASM 8270 Survey 147 1998-324.ASM Green Valley Survey 8470 148 1998-428.ASM Westland Resources Survey 9189 149 1998-554.ASM Solar del Viejo Project 10434 150 1999-3.ASM Lot 14 Pershing Addition Survey 9492 151 1999-4.ASM South 12th Avenue Paving Survey 9493 152 1999-93.ASM 6th Ave./Ajo Way Main Survey 9105 153 1999-104.ASM I-19- Ruby Rd to Rio Rico Survey 7942

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 98 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number Peck Canyon Wash Bridges Scour 154 1999-132.ASM 8726 Protection Survey SR 189 (Mariposa Road) Port of 155 1999-137.ASM 9190 Entry Cultural Resources Survey Paseo Tierra Townhouses, Lots 1- 156 1999-152.ASM 9473 20, 1.56-acre Survey Canoa Ranch Rest Area Facility 157 1999-172.ASM 9472 Rehabilitation Interstate 19, Pima Mine Road to Hill and Avann 158 1999-208.ASM Valencia Road, Pavement 9412 (1999) Preservation Project Helmet Peak Road 20-acre Gravel 159 1999-331.ASM 9463 Pit Survey 160 1999-347.ASM 1075 S. 10th Avenue Survey 9499 Archaeological Survey within 161 1999-349.ASM Escalada Canyon in Southeast 9191 Nogales, Arizona Phase I of the Tucson Freeway 162 1999-362.ASM 10282 Management System 163 1999-450.ASM Valencia Pit 10217 San Xavier Recreation Center 164 1999-489.ASM 10470 Survey Project 165 1999-518.ASM I-19 Duval Mine Road T.I. EA 10489 166 1999-592.ASM Tucson Maintenance I-19 12944 Cultural Resources Survey of Valencia Road Between Mission 167 2000-12.ASM 9392 Road and the Cruz River in Tucson… La Posada Testing Along Northern 168 2000-22.ASM 9413 Periphery of AZ EE:1:32 119-Ruby Rd to Rio Rico 169 2000-40.ASM 10220 Supplemental Survey Addendum to SR 189 State Port of 170 2000-45.ASM 9891 Entry 171 2000-116.ASM Jct. I-19 - Craycroft Rd. 10479 172 2000-153.ASM Santa Cruz Bikepath Survey 10202 W.O. HYX-566, Guadalajara Wash Sewer Protection Cultural 173 2000-170.ASM 10409 Resources Assessment (99PCO#26) 174 2000-204.ASM Green Valley Drainageway 7 10416 Green Valley KM 59.8 and KM 175 2000-203.ASM Stone (2000) 10426 60.9 W.O.4VRMRI, part 1: testing at AZ 176 2000-225.ASM 10536 AA:16:67(ASM) Ductos de Nogales Lateral 177 2000-245.ASM 13908 Pipeline Project W.O 4TSTAR South 12th Avenue from Lerdo Road to Los Reales 178 2000-267.ASM 10655 Road Cultural Resources Assessment 179 2000-271.ASM Green Valley Drianway #9 Project 10697 180 2000-284.ASM Moratorium Streets Survey 10591 Safeway-Sahuarita Archaeological 181 2000-325.ASM 10532 Survey 182 2000-412.ASM Closed Landfill Survey 10645 183 2000-470.ASM Court Street Tower 10834 184 2000-475.ASM Mesa Verde Drive Tower 10769 185 2000-478.ASM Rio Rico Survey 10768 186 2000-485.ASM Sahuarita Corridor Survey 10899 187 2000-568.ASM Santa Rosa Center Survey 11127 188 2000-570.ASM Starr Pass Properties Survey 11125

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 99 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number 189 2000-615.ASM Mission to Starr Pass Monitoring 10989 190 2000-765.ASM Tucson Hope VI 13504 191 2000-785.ASM I-19/Irvington SWC 13260 Barnes and 192 2000-822.ASM Tucson Maintenance - I-10 12836 Wright (2001) 193 2000-823.ASM Tucson Maintenance B-19 13636 Starr Pass AZ0173 194 2001-19.ASM Communications Tower Survey 10988 Project Clearwell Transmission Main 195 2001-41.ASM 10993 Survey 6251 S. Commerce Court ca. 4- 196 2001-73.ASM 10913 Acre Survey SR 189 (Maricopa Road) Port of 197 2001-91.ASM 11063 Entry 198 2001-177.ASM Duval Mine Road TI EA 11103 I-19 West Frontage Road at 199 2001-217.ASM 11085 Continental Interchange CRA 200 2001-246.ASM Wakefield 9th Avenue Survey 11275 201 2001-363.ASM Nogales Cell Tower Survey Slawson (2001) 13439 202 2001-401.ASM Ajo Way Landscaping Survey 11316 203 2001-559.ASM Escalada Commerce Center Stephen (2001) 14599 Ductos de Nogales Lateral 204 2001-573.ASM Hill (2001) 14581 Pipeline Project - Addendum 205 2001-592.ASM Continental Survey Roth (2002) 12407 206 2001-629.ASM 4th Ave -- 22nd to 25th Survey 13808 207 2001-663.ASM 12th/Drexel SEC 13271 208 2001-827.ASM Nogales Gateway Project Bauer(2001) 12403 W.O. 4ABCON. Abrego Drive and 209 2002-2.ASM Continental Road Intersection 11511 Cultural Resources Assessment 210 2002-17.ASM Landfill Monitor Well Survey 13810 Fuller, Megan S. 211 2002-35.ASM M3 Cricket Monopole 12837 (2002) 212 2002-97.ASM El Vado Wash Survey 14943 213 2002-100.ASM Martinez Hill North Survey 13921 214 2002-235.ASM Bridge 1024.01 Klune (2002) 13592 215 2002-249.ASM Ochoa Neighborhood Main Survey Diehl (2002) 12811 216 2002-260.ASM Nogales Highway Survey 13447 West Silverlake Archaeological 217 2002-276.ASM Bray (2002) 12398 Survey Winter and Rogge 218 2002-282.ASM AZ6 Western Avenue 12884 (2002) 219 2002-316.ASM South Park Back to Basics Survey Diehl (2002) 12833 220 2003-188.ASM Green Valley Thurtle (2002) 13557 CTA51 (South Gravity Main 221 2003-230.ASM Brack (2003) 13371 Survey) South 10th Avenue Revitalization 222 2003-248.ASM 12989 Survey Arivaca Gravity Flow Sewer 223 2003-440.ASM Van West (2003) 13364 Survey 224 2002-365.ASM Greater Wakefield 2 Survey 12933 225 2003-348.ASM TEP La Canada Moses (2003) 13602 Habitat Scattered Sites - 25th 226 2003-384.ASM 12941 Street Survey Nogales Highway: Irvington to 227 2003-396.ASM 12957 Drexel Survey Rio Rico Santa Cruz School 228 2003-413.ASM Breternitz (2003) 13031 District Survey 229 2003-418.ASM Valencia South Survey 12917 230 2003-432.ASM Tubac Golf Resort Entrance Stephen (2003) 16633 231 2003-442.ASM Canoa ADOT Crossing 14744

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 100 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number 232 2003-455.ASM Arivaca Road Survey 12978 233 2003-468.ASM Nogales Soccer Survey Swartz (2003) 12914 Continental Vista Erosional 234 2003-476.ASM Curtis (2003) 12910 Protection Survey Archaeological Monitoring of 235 2003-545.ASM Excavations for Qwest 12952 Communications in Green Valley Alpha Avenue Extension CR 236 2003-548.ASM 12975 Survey Winter and Rogge 237 2003-552.ASM AZ6 Crawford Hill 12908 (2002) Nogales Highway Cultural 238 2003-581.ASM Ruble (2003) 13354 Resources Assessment 239 2003-895.ASM CAP/EPNG Crossing Survey Diehl (2003) 13377 Canoa Ranch 8 Acre Gravel 240 2003-1283.ASM 14747 Removal Area 241 2003-1319.ASM La Canada Drive Fahrni (2003) 13357 Bauer et al. 242 2003-1320.ASM Nogales Boys and Girls Club 13389 (2001) Twilling and 243 2003-1321.ASM I19 and Irvington Survey 13336 Fahrni (2003) 244 2003-1443.ASM Irvington-Calle Santa Cruz Survey 13488 245 2003-1490.ASM Aviation/3rd Manhole Survey 13506 246 2004-55.ASM Nogales 6 Moses (2003) 16867 247 2004-83.ASM Park Corps Survey Hesse (2003) 16618 248 2004-273.ASM Mission Creek Apt. Survey 13770 Corrosion Prevention Project 249 2004-324.ASM Diehl (2004) 17038 Assessment and Survey Line 1007 ACOE Anomalies 250 2004-415.ASM Hesse (2004) 17011 Survey Rose Neighborhood Playground 251 2004-532.ASM Diehl (2004) 17185 Survey I-10/6th Avenue Bridge, Aristic 252 2004-541.ASM Fencing and Sidewalk Touchin (2004) 17015 Improvements 253 2004-629.ASM Pima Mine Road Survey Doak (2004) 18022 Wastewater Treatment Plant 254 2004-659.ASM Majewski (2001) 16731 Survey Barr and Hesse 255 2004-746.ASM Green Valley Abrego Drive Survey 17204 (2004) 256 2004-759.ASM High Sierra Estates Survey Diehl (2004) 17230 257 2004-1044.ASM Maripose Road to Junction I-19 Touchin (2004) 16630 258 2004-1869.ASM Camino del Sol Curtis (2004) 17324 259 2004-1805.ASM Green Valley Imaging Center Twilling (2004) 17354 260 2005-1009.ASM Sopori Ranch Access Stephen (2005) 16686 261 2002-011.ARS Rio Rico 290 Acres Curtis (2002) 16871 262 1108R Unknown 4737 263 1109R Unknown 4738 Archaeological Assessment of a 264 7.3059.SHPO Parcel Near Luke Air Force Base, 3857 Maricopa County Litchfield Vista Views Maricopa 265 7.3112.SHPO 3840 Zoning # Z-92-18. 266 7.3228.SHPO Land Leveling, Stahli Farms, SCS 3831 An Archaeological Survey of the 267 10.1265.SHPO 3043 Proposed Alingment 268 10.1369.SHPO Unknown 6698 269 12.1156.SHPO Unknown 4950 Letter report: proposed right-of- 270 12.52.SHPO way for Nolan Brothers, Inc. near 4022 Amado 271 SHPO-2001-119 Foxworth-Galbraith Lumber Olsson (2000) 15086

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 101 I-19 Frontage Road Study January 2008 Working Paper No. 1 AZSITE Project No. Agency Number Project Description References Number Company - Tower Site PH 33609A - Asset Environmental Services on Behal Request for Evaluation - Telecommunication Facility - 272 SHPO-2001-621 Slawson (2001) 15145 Montana Well #21 PH20897D - 1000 West Drexel Enclosed is a Class I Overview for a Proposed Telecommunications 273 SHPO-2001-359 Slawson (2001) 15165 Site ( PH33607A) at 857 West Bell R A copy of the Archaeological Letter on the Santo Tomas Villas 274 SHPO-2001-2430 Stephen (1999) 15300 in Sahuarita, Arizona for your records Old Pueblo Archaeology Center Project No. 99001.49, W.O. 275 SHPO-2002-124 16396 4ABCON, Abrego Drive and Continental Road

FHWA Project # TEA-TUC -0(051) ADOT TRACS # 0000 PM TUC SL 276 SHPO-2002-519 Diehl (2002) 15465 502 01C The City of Tucson proposed st

Continental Partnership LLC - Tierra Proposed private development of Archaeological & 277 SHPO-2003-0867 15456 a 5.6 acre parcel of land located at Environmental t (2002)

Site # PH35208J "San Xavier" 278 SHPO-2003-2545 T-Mobile proposed collocation of Goldstein (2003) 15392 cellular Telecommunications anten

279 12-19-1.BLM Unknown 4841 280 12-42.BLM Unknown 4903 281 12-60-13A.BLM Unknown 4917 282 12-130.BLM Unknown 4788 283 12-189.BLM Unknown 4840 284 12-196.BLM Unknown 4855 285 12-199.BLM Unknown 4856 286 B132.BLM none 10048 287 B1980-131.BLM none 10042 288 B1981-20.BLM none 10041 289 R154.BLM none 10043 290 T167.BLM none 10044

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 102 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix C.2 AZSITE Cultural Resource Database Results on Cultural Sites within the I-19 Frontage Road Review Area

No. Agency Site Type Eligibility References Number/ Site Name 1 AZ AA:16:396(ASM) Protohistoric-historic Recommended Jones (1996) papago artifact and habitat Not Eligible 2 AZ BB:13:427(ASM) Historic Artifact Scatter Not Evaluated AZSITE Record No. 5425

3 AZ BB:13:424(ASM) Historic Artifact Scatter Not Evaluated AZSITE Record No. 5433 4 AZ DD:4:215(ASM) Hohokam roasting pit Recommended Stephen (1995) Not Eligible 5 AZ DD:4:213(ASM) Hohokam artifact scatter Recommended Dart (1994) South Bluff Site and limited use area Eligible 6 AZ DD:4:214(ASM) Hohokam artifact scatter Recommended Dart (1994); Barr and North Hilltop Site and dry farming site Eligible Hesse (2004) 7 AZ DD:4:212(ASM) Historic house foundation Recommended Dart (1994);Stone (2000) and artifact scatter Eligible 8 AZ DD:8:146(ASM) Multicomponent site with Recommended AZSITE Record No. 6383 prehistoric and historic Eligible features 9 AZ DD:8:148(ASM) Hohokam limited activity site Determined Eligible Barz (1995) 10 AZ DD:8:145(ASM) Prehistoric artifact scatter Recommended Roberts (1993) Peck Canyon Fire and habitation Eligible Station Site 11 AZ DD:8:74(ASM) Prehistoric lithic scatter Not Evaluated AZSITE Record No. 6386 Giesy Site 12 AZ DD:8:147(ASM) Prehistoric lithic scatter Determined Adams and Hoffman (1995) Eligible 13 AZ EE:1:198(ASM) Hohokam roasting pit Recommended Stephen (1995) Not Eligible 14 AZ EE:1:194(ASM) Large prehistoric sherd & Not Evaluated Dart (1994); Jones et al. Lakeside Site lithic scatter (2001); Jones et al. (1995); Jones and Dart (1998) 15 AZ EE:9:155(ASM) Prehistoric sherd and lithic Not Evaluated Adams and Hoffman (1995) scatter 16 AZ EE:9:154(ASM) 2.3 Miles of the Old Tucson Determined Stone (1994); Adams and Old Tucson Road Road, including two bridges Not Eligible Hoffman (1995) and curb/culvert features 17 AZ Segments of SR 80 Multiple segments Klune and Moses (2003); FF:9:17(ASM)State Determined Eligible Lindly (2004); Touchin and Route 80 Multiple Brodbeck (2002); Rogge, Site No. Ryan and Van Gorder Assigned:AZ (2002); Davis and Ogren EE:2:324 (ASM)AZ (2002); Davis (2002); EE:8:291 (ASM)AZ Shepard and Turner (2002); FF:9:17 (ASM)AZ Davis (2001); Davis and FF:9:55 (ASM)AZ Ogren (2002); Chapin-Pyritz T:10:75 (ASM) and Hill (2002); Touchin and Brodbeck (2003); Touchin, Palmer and Brodbeck (2002) 18 AZ EE:9:177(ASM) Historic house circa 1940 Recommended Lite (1997) Not Eligible 19 AZ DD:8:163(ASM) Hohokam artifact scatter Recommended Lite et al. (1996) Eligible 20 AZ DD:8:164(ASM) Hohokam subsistence and Determined Lite et al. (1996) possible habitation Eligible 21 AZ DD:8:165(ASM) Historic cemetery Determined Lite et al. (1996) Eligible 22 AZ DD:8:166(ASM) Prehistoric artifact scatter Recommended Lite et al. (1996) and historic grave Eligible

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 103 I-19 Frontage Road Study January 2008 Working Paper No. 1 23 AZ DD:8:167(ASM) High density Hohokam Determined Lite et al. (1996) artifact scatter Eligible 24 AZ DD:8:168(ASM) Prehistoric artifact scatter Determined Lite et al. (1996) Eligible 25 AZ DD:8:169(ASM) Prehistoric artifact scatter Determined Lite et al. (1996) Eligible 26 AZ DD:8:170(ASM) Low-density lithic scatter Determined Lite et al. (1996) Eligible 27 AZ D:12:36(ASM) Low- density Hohokam Recommended Lite et al. (1996) artifact scatter Eligible 28 AZ DD:12:37(ASM) Determined Lite et al. (1996) Eligible 29 AZ EE:9:173(ASM) Moderate-density Hohokam Determined Lite et al. (1996) artifact scatter Eligible 30 AZ EE:9:174(ASM) Hohokam limited activity site Determined Lite et al. (1996) Eligible 31 AZ EE:9:175(ASM) Prehistoric (Hohkam/ Determined Lite et al. (1996); Trincheras Frontier) Eligible Kwiatkowski (2000); Settlement Kwiatkowski (2002) 32 AZ BB:13:512(ASM) Historic Trash Dump Recommended AZSITE Record No. 22926 Tucson City Block Eligible #164 33 MPAEXP-358 Charles Holler House Contributing Building Crawford Hill Historic 553 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 34 MPAEXP-359 423 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 35 MPAEXP-360 444 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 36 MPAEXP-361 448 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 37 MPAEXP-362 437 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 38 MPAEXP-363 439 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 39 MPAEXP-364 314 Oak Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 40 MPAEXP-365 413 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 41 MPAEXP-366 415 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 42 MPAEXP-367 419 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 43 MPAEXP-368 414 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 104 I-19 Frontage Road Study January 2008 Working Paper No. 1 Historic District 44 MPAEXP-369 324-326 Noon Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 45 MPAEXP-370 304 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 46 MPAEXP-371 312 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 47 MPAEXP-372 317 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 48 MPAEXP-373 323 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 49 MPAEXP-374 421 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 50 MPAEXP-375 316 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 51 MPAEXP-376 310 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 52 MPAEXP-377 230 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 53 MPAEXP-379 207 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 54 MPAEXP-380 213 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 55 MPAEXP-381 237 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 56 MPAEXP-382 242 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 57 MPAEXP-383 218 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 58 MPAEXP-384 Mountain States Telephone Contributing Building Crawford Hill Historic Mountain States Building to Residential District (8-29- Telephone Building 308-316 Rodriguez Street, NRHP Listed 1985) Nogales Historic District 59 MPAEXP-387 409 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 60 MPAEXP-388 318 Rodriguez Street, Contributing Building Crawford Hill Historic 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 105 I-19 Frontage Road Study January 2008 Working Paper No. 1 Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 61 MPAEXP-389 Garage Contributing Building Crawford Hill Historic Garage 305-307 Rodriguez Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 62 MPAEXP-391 W.J. Neuman House Contributing Building Crawford Hill Historic W.J. Neuman 216 Oak Street, Nogales to Residential District (8-29- House NRHP Listed 1985) Historic District 63 MPAEXP-393 211 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 64 MPAEXP-394 215 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 65 MPAEXP-395 229 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 66 MPAEXP-396 235 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 67 MPAEXP-398 562 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 68 MPAEXP-399 324 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 69 MPAEXP-400 133 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 70 MPAEXP-401 J.E. Wise House Contributing Building Crawford Hill Historic J.E. Wise House 559 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 71 MPAEXP-402 557 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 72 MPAEXP-403 541 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 73 MPAEXP-404 Huntington Apartments Contributing Building Crawford Hill Historic Huntington 537 Crawford Street, to Residential District (8-29- Apartments Nogales NRHP Listed 1985) Historic District 74 MPAEXP-405 531 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 75 MPAEXP-406 527 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 76 MPAEXP-407 523 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 106 I-19 Frontage Road Study January 2008 Working Paper No. 1 Historic District 77 MPAEXP-408 Frank Fitch House Contributing Building Crawford Hill Historic Frank Fitch House 517 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 78 MPAEXP-409 C.M. Rathbun House Contributing Building Crawford Hill Historic C.M. Rathbun 513 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 79 MPAEXP-410 Louis B. Hudgin House Contributing Building Crawford Hill Historic Louis B. Hudgin 501 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 80 MPAEXP-411 Edward Titcomb House Contributing Building Crawford Hill Historic Edward Titcomb 431 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 81 MPAEXP-412 436 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 82 MPAEXP-413 442 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 83 MPAEXP-414 502 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 84 MPAEXP-415 508 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 85 MPAEXP-417 Purdum/Fox Double House Contributing Building Crawford Hill Historic Purdum/Fox Double 435-437 Noon Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 86 MPAEXP-418 J.D. Barry House Contributing Building Crawford Hill Historic J.D. Barry House 449 Noon Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 87 MPAEXP-419 451 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 88 MPAEXP-420 435 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 89 MPAEXP-421 536 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 90 MPAEXP-422 Reddoch House Contributing Building Crawford Hill Historic Reddoch House 410 Sonoita Avenue to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 91 MPAEXP-423 316 Oak Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 92 MPAEXP-424 E.E. Noon House Contributing Building Crawford Hill Historic E.E. Noon House 340 Oak Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 93 MPAEXP-425 406 Sonoita Avenue, Contributing Building Crawford Hill Historic 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 107 I-19 Frontage Road Study January 2008 Working Paper No. 1 Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 94 MPAEXP-426 William R. Sprecher House Contributing Building Crawford Hill Historic William R. Sprecher 416 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 95 MPAEXP-427 309 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 96 MPAEXP-428 E.E. Noon House Contributing Building Crawford Hill Historic E.E. Noon House 313 Noon Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 97 MPAEXP-429 317 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 98 MPAEXP-430 323 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 99 MPAEXP-431 325 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 100 MPAEXP-432 E.P. Chase House Contributing Building Crawford Hill Historic E.P. Chase House 401 Noon Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 101 MPAEXP-433 Arcus Reddoch Rental Contributing Building Crawford Hill Historic Arcus Reddoch House to Residential District (8-29- Rental House 405 Noon Street, Nogales NRHP Listed 1985) Historic District 102 MPAEXP-434 Arcus Reddoch Rental Contributing Building Crawford Hill Historic Arcus Reddoch House to Residential District (8-29- Rental House 409 Noon Street, Nogales NRHP Listed 1985) Historic District 103 MPAEXP-435 Josephine Saxon House Contributing Building Crawford Hill Historic Josephine Saxon 402 Noon Street, Nogales to Residential District (8-29- House NRHP Listed 1985) Historic District 104 MPAEXP-436 344 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 105 MPAEXP-437 315 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 106 MPAEXP-438 349 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 107 MPAEXP-439 332 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 108 MPAEXP-440 328 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 109 MPAEXP-441 320 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 108 I-19 Frontage Road Study January 2008 Working Paper No. 1 Historic District 110 MPAEXP-442 Marie O'Keefe House Contributing Building Crawford Hill Historic Marie O'Keefe 316 Noon Street, Nogales to Residential District (8-29- House NRHP Listed 1985) Historic District 111 MPAEXP-443 312 Noon Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 112 MPAEXP-444 W.T. Roath Rental House Contributing Building Crawford Hill Historic W.T. Roath Rental 308 Noon Street, Nogales to Residential District (8-29- House NRHP Listed 1985) Historic District 113 MPAEXP-445 318 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 114 MPAEXP-446 314 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 115 MPAEXP-447 301 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 116 MPAEXP-448 305 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 117 MPAEXP-449 309 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 118 MPAEXP-450 327 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 119 MPAEXP-451 303-305 Elm Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 120 MPAEXP-452 411 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 121 MPAEXP-453 413 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 122 MPAEXP-454 417 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 123 MPAEXP-455 Roy & Titcomb Rental Contributing Building Crawford Hill Historic Roy & Titcomb Cottages to Residential District (8-29- Rental Cottages 425 Elm Street, Nogales NRHP Listed 1985) Historic District 124 MPAEXP-456 Bowman Flats Contributing Building Crawford Hill Historic Bowman Flats 420-426 Elm Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 125 MPAEXP-457 416 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 126 MPAEXP-458 412 Elm Street, Nogales Contributing Building Crawford Hill Historic 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 109 I-19 Frontage Road Study January 2008 Working Paper No. 1 to Residential District (8-29- NRHP Listed 1985) Historic District 127 MPAEXP-459 408 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 128 MPAEXP-460 402 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 129 MPAEXP-461 Spink/Barnett House Contributing Building Crawford Hill Historic Spink/Barnett House 326 Elm Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 130 MPAEXP-462 320 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 131 MPAEXP-463 308 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 132 MPAEXP-464 304 Elm Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 133 MPAEXP-465 Zepeda House Contributing Building Crawford Hill Historic Zepeda House 302 Elm Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 134 MPAEXP-466 W.F. Overton House Contributing Building Crawford Hill Historic W.F. Overton House 222 Sonoita Avenue, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 135 MPAEXP-467 218 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 136 MPAEXP-468 Avery/Pascholy House Contributing Building Crawford Hill Historic Avery/Pascholy 212 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 137 MPAEXP-469 L. Ephraim House Contributing Building Crawford Hill Historic L. Ephraim House 208 Sonoita Avenue, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 138 MPAEXP-470 US Customs House Contributing Building Crawford Hill Historic US Customs House 202 Sonoita Avenue, to Residential District (8-29- Nogales NRHP Listed 1985) Occupied as US Customs Historic District House ca.1894 to 1900; possibly one of the oldest remaining dwellings in Nogales. 139 MPAEXP-471 Dr. W.F. Chenoweth House Contributing Building Crawford Hill Historic Dr. W.F. Chenoweth 307 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 140 MPAEXP-472 Dr. A.H. Noon/Hendricks Contributing Building Crawford Hill Historic Dr. A.H. House to Residential District (8-29- Noon/Hendricks 315 Crawford Street, NRHP Listed 1985) House Nogales Historic District 141 MPAEXP-473 Allen T. Bird House Contributing Building Crawford Hill Historic Allen T. Bird House 317 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 110 I-19 Frontage Road Study January 2008 Working Paper No. 1 Historic District 142 MPAEXP-474 209 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 143 MPAEXP-475 219 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 144 MPAEXP-476 240 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 145 MPAEXP-477 228 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 146 MPAEXP-478 310 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 147 MPAEXP-479 216 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 148 MPAEXP-480 210 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 149 MPAEXP-481 George Jones and Ada Contributing Building Crawford Hill Historic George Jones and Ekey House to Residential District (8-29- Ada Ekey House 208 West Street, Nogales NRHP Listed 1985) Historic District 150 MPAEXP-482 W.C. Budge House Contributing Building Crawford Hill Historic W.C. Budge House 411 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 151 MPAEXP-484 Watt Gittens House Contributing Building Crawford Hill Historic Watt Gittens House 309 Sonoita Avenue, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 152 MPAEXP-485 311 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 153 MPAEXP-486 315 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 154 MPAEXP-487 319 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 155 MPAEXP-488 W.J. Neuman House Contributing Building Crawford Hill Historic W.J. Neuman 323 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 156 MPAEXP-489 W.A. O'Connor Rental Contributing Building Crawford Hill Historic W.A. O'Connor House to Residential District (8-29- Rental House 327 Sonoita Avenue, NRHP Listed 1985) Nogales Historic District 157 MPAEXP-490 W.A. O'Connor House Contributing Building Crawford Hill Historic W.A. O'Connor 403 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 158 MPAEXP-491 407 Sonoita Avenue, Contributing Building Crawford Hill Historic 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 111 I-19 Frontage Road Study January 2008 Working Paper No. 1 Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 159 MPAEXP-492 E.E. Noon Rental House Contributing Building Crawford Hill Historic E.E. Noon Rental 417 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 160 MPAEXP-493 338 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 161 MPAEXP-494 334 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 162 MPAEXP-495 330-332 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 163 MPAEXP-496 326 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 164 MPAEXP-497 324 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 165 MPAEXP-498 322 Rodriquez Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 166 MPAEXP-499 Catholic Rectory Contributing Building Crawford Hill Historic Catholic Rectory 333 Rodriquez Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 167 MPAEXP-500 G.M. Castro Rental House Contributing Building Crawford Hill Historic G.M. Castro Rental 337 Rodriquez Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 168 MPAEXP-501 G.M. Castro Rental House Contributing Building Crawford Hill Historic G.M. Castro Rental 345 Rodriquez Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 169 MPAEXP-502 222 Oak Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 170 MPAEXP-503 Sacred Heart School Contributing Building Crawford Hill Historic Sacred Heart Building to Residential District (8-29- School Building 212 Oak Street, Nogales NRHP Listed 1985) Historic District 171 MPAEXP-504 Sacred Heart Church Contributing Building Crawford Hill Historic Sacred Heart 330 Arroyo Boulevard, to Residential District (8-29- Church Nogales NRHP Listed 1985) Historic District 172 MPAEXP-509 Bracey Curtis House/ Contributing Building Crawford Hill Historic Bracey Curtis Mexican Consulate to Residential District (8-29- House/ Mexican 223 Crawford Street, NRHP Listed 1985) Consulate Nogales Historic District 173 MPAEXP-510 Harry Renshaw House Contributing Building Crawford Hill Historic Harry Renshaw 209 Sonoita Avenue, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 174 MPAEXP-511 239 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 112 I-19 Frontage Road Study January 2008 Working Paper No. 1 Historic District 175 MPAEXP-512 235 1/2 Sonoita Avenue, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 176 MPAEXP-524 534 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 177 MPAEXP-525 532 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 178 MPAEXP-526 528 Crawford Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 179 MPAEXP-527 J.B. Campbell House Contributing Building Crawford Hill Historic J.B. Campbell 504 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 180 MPAEXP-528 H.M. Claggett House Contributing Building Crawford Hill Historic H.M. Claggett 434 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 181 MPAEXP-529 Earl Griswold House Contributing Building Crawford Hill Historic Earl Griswold House 430 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 182 MPAEXP-530 Ignatius Burgoon House Contributing Building Crawford Hill Historic Ignatius Burgoon 424 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 183 MPAEXP-531 Nathaniel B. Wales Contributing Building Crawford Hill Historic Nathaniel B. Wales 420 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 184 MPAEXP-532 E.K. Cummings House Contributing Building Crawford Hill Historic E.K. Cummings 414 Crawford Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 185 MPAEXP-533 William Shuckman/ Nasib Contributing Building Crawford Hill Historic William Shuckman/ Karam to Residential District (8-29- Nasib Karam 408 Crawford Street, NRHP Listed 1985) Nogales Historic District 186 MPAEXP-534 A.M. Conard House Contributing Building Crawford Hill Historic A.M. Conard House 154 West Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 187 MPAEXP-535 148 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 188 MPAEXP-537 138 West Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 189 MPAEXP-538 A.L. Lewis House Contributing Building Crawford Hill Historic A.L. Lewis House 320 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 190 MPAEXP-540 Mary Nolan House Contributing Building Crawford Hill Historic Mary Nolan House 310 Crawford Street, to Residential District (8-29- Nogales NRHP Listed 1985) Historic District 191 MPAEXP-549 St. Joseph's Hospital Contributing Building Crawford Hill Historic 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 113 I-19 Frontage Road Study January 2008 Working Paper No. 1 St. Joseph's Addition to Residential District (8-29- Hospital Addition 155 West Street, Nogales NRHP Listed 1985) Historic District 192 MPAEXP-550 J.H. Simpson House Contributing Building Crawford Hill Historic J.H. Simpson House 143 West Street, Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 193 MPAEXP-551 Piskorski Apartment House Contributing Building Crawford Hill Historic Piskorski Apartment 145-147 West Street, to Residential District (8-29- House Nogales NRHP Listed 1985) Historic District 194 MPAEXP-552 151-155 West Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 195 MPAEXP-561 Nogales Electric Light, Ice & NRHP Listed Crawford Hill Historic Nogales Electric Water Company Power Residential District (8-29- Light, Ice & Water House 1985) Cam pan Power 498 Grand Street, Nogales House The only remaining building associated with the development of electric power in Nogales. 196 MPAEXP-568 220 Walnut Street, Nogales NRHP Listed Crawford Hill Historic Residential District (8-29- 1985) 197 MPAEXP-571 Frank F. Cranz House NRHP Listed Crawford Hill Historic Frank F. Cranz 408 Arroyo Boulevard, Residential District (8-29- House Nogales 1985) Residence for Franklin F. Cranz, Mayor of Nogales (1904-1906) 198 MPAEXP-575 Southern Pacific Co. Freight Contributing Building Crawford Hill Historic Southern Pacific Co. Depot to Residential District (8-29- Freight Depot 120 Court Street, Nogales NRHP Listed 1985) Historic District 199 MPAEXP-595 111 E. Court Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 200 MPAEXP-596 105 E. Court Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 201 MPAEXP-597 309 Summit Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 202 MPAEXP-598 301 Summit Street, Nogales Contributing Building Crawford Hill Historic to Residential District (8-29- NRHP Listed 1985) Historic District 203 MPAEXP-602 143 S. Court Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 204 MPAEXP-604 127 S. Court Street, Contributing Building Crawford Hill Historic Nogales to Residential District (8-29- NRHP Listed 1985) Historic District 205 MPAEXP-11083 Theodore Gebler Memorial Contributing Building Crawford Hill Historic Theodore Gebler Building to Residential District (8-29- Memorial Building 124-128 Grand Street, NRHP Listed 1985) Nogales Historic District Best example of Spanish Colonial Revival 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 114 I-19 Frontage Road Study January 2008 Working Paper No. 1 architecture in Nogales 206 MPAEXP-12999 837 South 10th Avenue, NRHP Listed Barrio Libre Historic District Tucson (10-18-1978) 207 AZ EE:9:179(ASM) Hohokam limited activity site Recommended Lascaux (1998) Eligible 208 AZ DD:8:171(ASM) Low-density prehistoric Recommended Carpenter (1998) artifact scatter Eligible 209 AZ BB:13:484(ASM) Historic trash dump within Recommended Levi (1996) Tucson City Block the Barrio Libre Historic Eligible #155 District 210 AZ BB:13:485(ASM) Late historic trash dump Recommended AZSITE Record No. 63770 Tucson City Block Eligible #154 211 AZ BB:13:489(ASM) Late historic occupation Recommended Levi (1996) Tucson City Block areas - within the Barrio Eligible #1317 Libre Historic District 212 AZ BB:13:491(ASM) Late historic trash midden- Recommended Levi (1996) Tucson City Block within the Barrio Libre Eligible #165 Historic District 213 AZ BB:13:539(ASM) Historic irrigation features Recommended AZSITE Record No. 63807 Eligible 214 AZ DD:4:43(ASM) Hohokam artifact scatter Determined AZSITE Record No. 63979 and roasting pit Eligible 215 AZ DD:4:45(ASM) Large prehistoric artifact Determined Van West et.al. (2003) scatter and habitation locus Eligible 216 AZ DD:4:46(ASM) Hohokam artifact scatter Determined AZSITE Record No. 63981 and habitation Eligible 217 AZ DD:4:47(ASM) Large Hohokam limited Determined AZSITE Record No. 63982 activity with multiple rock Eligible features 218 AZ DD:4:48(ASM) Hohokam habitation low- Determined Van West et.al. (2003) density artifact scatter with Eligible pit house 219 AZ DD:4:51(ASM) Large dense prehistoric Determined AZSITE Record No. 63984 artifact scatter with hearth Eligible and roasting pit 220 AZ DD:4:52(ASM) Hohokam artifact scatter Determined AZSITE Record No. 63985 with rock features Eligible 221 AZ DD:4:53(ASM) Hohokam moderate density Determined AZSITE Record No. 63986 artifact scatter with rock Eligible features 222 AZ DD:4:54(ASM) Prehistoric artifact scatter Determined Van West et.al. (2003) Eligible 223 AZ DD:4:55(ASM) Prehistoric light-density Determined AZSITE Record No. 63988 artifact scatter Eligible 224 AZ DD:4:56(ASM) Hohokam artifact scatter Determined AZSITE Record No. 63989 and pit house Eligible 225 AZ DD:4:58(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 63990 Eligible 226 AZ DD:4:59(ASM) Multi-component site with Determined Van West et.al. (2003) prehistoric artifact scatter Eligible and remains of Frederic Maish South House and Stage Stop 227 AZ DD:4:60(ASM) Prehistoric light-density Determined AZSITE Record No. 63992 artifact scatter Eligible 228 AZ DD:4:63(ASM) Light-density Hohokam Determined AZSITE Record No. 63993 artifact scatter Eligible 229 AZ DD:4:64(ASM) Light-density Hohokam Determined AZSITE Record No. 63994 artifact scatter Eligible 230 AZ DD:4:67(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 63996 Eligible 231 AZ DD:4:69(ASM) Hohokam artifact scatter Determined AZSITE Record No. 63998 with pit house and rock Eligible feature

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 115 I-19 Frontage Road Study January 2008 Working Paper No. 1 232 AZ DD:4:71(ASM) Multi-component site Determined Van West and Whittlesey indicating heavy occupation Eligible (1996); Huber (1996); Frick - numerous habitation and (1954) agricultural features 233 AZ DD:4:73(ASM) High-density Hohokam site Determined Van West and Whittlesey including artifact scatters, Eligible (1996); Huber (1996); Frick rock features, and water (1954) control features 234 AZ DD:4:216(ASM) Trash midden and rock Determined AZSITE Record No. 64002 features with Hohokam and Eligible Apache diagnostic artifacts 235 AZ DD:4:224(ASM) Prehistoric low-density Recommended AZSITE Record No. 64010 artifact scatter Not Eligible 236 AZ DD:4:226(ASM) Hohokam artifact scatter Determined AZSITE Record No. 64012 and roasting pit Eligible 237 AZ DD:4:227(ASM) Hohokam resource Determined Hagenbuckle and Riggs processing locus with oven Eligible (2003) and roasting pit features 238 AZ DD:4:228(ASM) Hohokam light artifact Determined Hagenbuckle and Riggs scatter with rock feature Not Eligible (2003) 239 AZ DD:4:229(ASM) Prehistoric rock features Determined Hagenbuckle and Riggs Not Eligible (2003) 240 AZ DD:4:230(ASM) Hohokam limited activity site Determined Hagenbuckle and Riggs Eligible (2003) 241 AZ DD:4:231(ASM) Hohokam resource Determined Hagenbuckle and Riggs processing locus Not Eligible (2003) 242 AZ DD:4:232(ASM) Prehistoric lithic scatter with Determined Hagenbuckle and Riggs hearth-roasting pit features Eligible (2003) 243 AZ DD:4:233(ASM) Prehistoric light artifact Determined Hagenbuckle and Riggs scatter with rock features Eligible (2003) 244 AZ DD:4:234(ASM) Prehistoric resource Determined Hagenbuckle and Riggs processing locus Eligible (2003) 245 AZ DD:4:235(ASM) Prehistoric limited activity Determined Hagenbuckle and Riggs site Not Eligible (2003) 246 AZ DD:4:236(ASM) Prehistoric artifact scatter Determined Hagenbuckle and Riggs with rock features Eligible (2003) 247 AZ DD:4:237(ASM) Hohokam artifact scatter Determined AZSITE Record No. 64023 with roasting pit and rock Eligible feature 248 AZ DD:4:238(ASM) Prehistoric sparse lithic Determined AZSITE Record No. 64024 scatter Not Eligible 249 AZ DD:4:239(ASM) Multi-component site with Recommended Hagenbuckle and Riggs Hohokam and historic Eligible (2003) features 250 AZ DD:4:242(ASM) Hohokam artifact scatter Determined AZSITE Record No. 64028 Eligible 251 AZ DD:4:244(ASM) Hohokam artifact scatter Determined AZSITE Record No. 64030 Eligible 252 AZ DD:4:245(ASM) Hohokam artifact scatter Determined AZSITE Record No. 64031 Not Eligible 253 AZ DD:4:246(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 64032 Eligible 254 AZ DD:4:248(ASM) Hohokam trash midden Determined AZSITE Record No. 64034 Eligible 255 AZ DD:4:249(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 64035 with roasting pit and rock features 256 AZ DD:4:250(ASM) Prehistoric lithic scatter with Determined Hagenbuckle and Riggs hearth and rock features Eligible (2003) 257 AZ DD:4:251(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 64037 Eligible 258 AZ EE:1:202(ASM) Hohokam trash midden Determined AZSITE Record No. 64072 Eligible 259 AZ EE:1:203(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 64073 Eligible

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 116 I-19 Frontage Road Study January 2008 Working Paper No. 1 260 AZ EE:9:172(ASM) New Mexico and Arizona Recommended AZSITE Record No. 64177 Railroad between Benson Eligible and Nogales 261 AZ EE:9:176(ASM) Historic road segment Not Evaluated AZSITE Record No. 64178 262 AZ DD:8:156(ASM) Hohokam artifact scatters Determined AZSITE Record No. 64273 and rock features Eligible 263 AZ EE:1:88(ASM) Hohokam cremation locus Not Evaluated AZSITE Record No. 64918 264 AZ EE:1:164(ASM) Prehistoric lithic scatter and Determined AZSITE Record No. 64919 fire pits Not Eligible 265 AZ EE:1:171(ASM) Historic copper mill/smelt Not Evaluated AZSITE Record No. 64920 266 AZ EE:1:2(ASM) Prehistoric resource Not Evaluated AZSITE Record No. 64922 procurement station 267 AZ EE:1:3(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 64923 268 AZ EE:1:4(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 64924 scatter 269 AZ EE:1:5(ASM) Prehistoric sherd scatter Not Evaluated Frick (1954) with ground stone 270 AZ EE:1:6(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 64926 scatter 271 AZ EE:1:83(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 64930 scatter 272 AZ EE:1:86(ASM) Hohokam sherd and lithic Recommended Brown (2000); Hesse scatter with roasting pit Eligible (2003); Shepard (2000) 273 AZ EE:1:87(ASM) Dense sherd and lithic Not Evaluated Doak and Terzis (1997) scatter with ground stone and cremation 274 AZ EE:1:140(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 65986 scatter with roasting pit 275 AZ EE:1:141(ASM) Hohokam artifact scatter Recommended Hesse (2004) with possible habitation Not Eligible locus 276 AZ EE:1:142(ASM) Hohokam sherd and lithic Not Evaluated Doelle et al. (1985) scatter 277 AZ EE:1:143(ASM) Hohokam artifact scatter Not Evaluated Doelle et al. (1985) 278 AZ EE:1:144(ASM) Dense Hohokam sherd and Recommended Ezzo (2006); Stephen et al. lithic scatter with ground Eligible (1997); Doelle et al. (1985) stone 279 AZ EE:1:145(ASM) Hohokam sherd and lithic Not Evaluated Doelle et al. (1985) scatter with roasting pit 280 AZ EE:1:146(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 65992 scatter with marine shell 281 AZ EE:1:147(ASM) Hohokam widely dispersed Recommended Ezzo (2006); Doelle et al. scatter of sherds, lithics, Eligible (1985) and ground stone with pit house and midden features 282 AZ EE:1:148(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 65994 scatter 283 AZ EE:1:149(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 65995 scatter 284 AZ EE:1:183(ASM) Prehistoric rock alignment Not Evaluated AZSITE Record No. 66042 285 AZ DD:8:50(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 66122 286 AZ DD:4:39(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66269 287 AZ DD:4:40(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66270 288 AZ DD:4:41(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66271 289 AZ DD:4:42(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66272 290 AZ DD:4:44(ASM) Prehistoric artifact scatter Determined Van West et.al. (2003) Eligible 291 AZ DD:4:49(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66274 292 AZ DD:4:50(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66275 293 AZ DD:4:57(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 66276 Eligible 294 AZ DD:4:72(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66278 295 AZ DD:4:74(ASM) Historic Ranch Recommended Van West et.al. (2003) Canoa Ranch Eligible 296 AZ DD:4:203(ASM) Portions of historic Some Segments Hesse and Hesse (2003); 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 117 I-19 Frontage Road Study January 2008 Working Paper No. 1 Tucson-Nogales highway Determined Eligible, Wright (2000) Others Determined Not Eligible 297 AZ DD:4:205(ASM) Rock clusters Not Evaluated AZSITE Record No. 66399 298 AZ DD:8:42(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66514 299 AZ DD:8:47(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66516 300 AZ DD:8:51(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66519 301 AZ DD:8:52(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66520 302 AZ DD:8:54(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66521 303 AZ DD:8:55(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66522 304 AZ DD:8:56(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66523 305 AZ DD:8:58(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66524 306 AZ DD:8:59(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66525 307 AZ DD:8:61(ASM) Prehistoric artifact scatter Determined AZSITE Record No. 66526 Eligible 308 AZ DD:8:62(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66527 309 AZ DD:8:63(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66528 310 AZ DD:8:64(ASM) Multi-component site with Not Evaluated AZSITE Record No. 66529 prehistoric artifact scatter and historic building foundations 311 AZ DD:8:65(ASM) Prehistoric artifact scatter Not Evaluated Frick (1954) 312 AZ DD:8:66(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66531 313 AZ DD:8:67(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66532 314 AZ DD:8:68(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66533 315 AZ DD:8:69(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66534 316 AZ DD:8:70(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66535 317 AZ DD:8:72(ASM) Historic house foundation Not Evaluated AZSITE Record No. 66536 with associated artifact scatter 318 AZ DD:8:75(ASM) Prehistoric compound with Not Evaluated AZSITE Record No. 66537 hearth and associated artifact scatter 319 AZ DD:8:82(ASM) Prehistoric one room Not Evaluated AZSITE Record No. 66538 structure with associated artifacts 320 AZ DD:8:85(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66539 321 AZ DD:8:86(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66540 322 AZ DD:8:87(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66541 323 AZ DD:8:88(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66542 324 AZ DD:8:89(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66543 325 AZ DD:8:90(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66544 326 AZ DD:8:91(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66545 327 AZ DD:8:92(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66546 328 AZ DD:8:93(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66547 329 AZ DD:8:94(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66548 330 AZ DD:8:96(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66550 331 AZ DD:8:102(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66555 332 AZ DD:8:103(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66556 333 AZ DD:8:120(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66563 334 AZ DD:8:123(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66564 with rock fortification features 335 AZ DD:8:124(ASM) Prehistoric lithic scatter Not Evaluated AZSITE Record No. 66565 336 AZ DD:8:125(ASM) Lithic Scatter with rock ring Not Evaluated AZSITE Record No. 66566 337 AZ DD:8:126(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66567 with canal 338 AZ DD:12:1(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 66579 scatter 339 AZ DD:12:4(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66580 340 AZ DD:12:5(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66581 341 AZ DD:12:3(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66582 342 AZ DD:12:2(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 66583 343 AZ BB:13:19(ASM) Multi-component site with Recommended Courtright & Wright (1999)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 118 I-19 Frontage Road Study January 2008 Working Paper No. 1 Hohokam artifact scatter Eligible and historic irrigation related features and artifacts 344 AZ BB:13:20(ASM) Large prehistoric sherd and Not Evaluated AZSITE Record No. 67289 lithic scatter 345 AZ BB:13:21(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 67290 346 AZ BB:13:55(ASM) Multi-component Hohokam Determined Mabry (1990) and historic site Eligible 347 AZ BB:13:90(ASM) Prehistoric cremation and Not Evaluated Shott (1978) eroding ceramic deposits 348 AZ BB:13:91(ASM) Multi-component site with Recommended Swartz (2002) prehistoric artifact scatter Eligible and historic structure with associated artifacts 349 AZ BB:13:92(ASM) Prehistoric sherd and lithic Determined AZSITE Record No. 67380 scatter Eligible 350 AZ BB:13:93(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 67382 scatter 351 AZ BB:13:94(ASM) Pre/Protohistoric dense Not Evaluated AZSITE Record No. 67383 sherd and artifact scatter 352 AZ BB:13:95(ASM) Prehistoric sherd and lithic Determined AZSITE Record No. 67385 scatter with O'odham artifact Eligible scatter 353 AZ BB:13:96(ASM) Prehistoric sherd and lithic Determined AZSITE Record No. 67387 scatter Eligible 354 AZ BB:13:97(ASM) Hohokam sherd and lithic Recommended Shepard (2000) scatter Eligible 355 AZ BB:13:99(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 67389 scatter 356 AZ BB:13:101(ASM) Hohokam sherd and lithic Determined AZSITE Record No. 67391 scatter Eligible 357 AZ BB:13:102(ASM) O'odham artifact scatter Not Evaluated AZSITE Record No. 67393 358 AZ BB:13:103(ASM) Prehistoric sherd and lithic Not Evaluated AZSITE Record No. 67396 scatter 359 AZ BB:13:104(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 67397 scatter 360 AZ BB:13:105(ASM) Multi-component site; Not Evaluated Ravesloot (1984); AZSITE prehistoric sherd scatter; Record No. 67398 historic house foundation and trash 361 AZ BB:13:108(ASM) Prehistoric lithic scatter Determined AZSITE Record No. 67399 Eligible 362 AZ BB:13:109(ASM) Historic dam Not Evaluated AZSITE Record No. 67401 363 AZ BB:13:111(ASM) Multi-component Hohokam Not Evaluated AZSITE Record No. 67403 sherd scatter; historic mill foundation 364 AZ BB:13:129(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 67469 365 AZ BB:13:142(ASM) Historic cistern and tunnel Not Evaluated AZSITE Record No. 67481 pumping station 366 AZ BB:13:143(ASM) Hohokam sherd scatter Not Evaluated AZSITE Record No. 67482 367 AZ BB:13:145(ASM) Hohokam sherd scatter Not Evaluated AZSITE Record No. 67484 368 AZ BB:13:223(ASM) Hohokam light sherd and Not Evaluated AZSITE Record No. 67483 lithic scatter 369 AZ BB:13:407(ASM) Historic house foundation Not Evaluated AZSITE Record No. 67485 out building and windmill with associated artifact scatter 370 AZ BB:13:323(ASM) Multi-component Hohokam Not Evaluated AZSITE Record No. 67949 sherd scatter; historic house foundation and associated artifact scatter 371 AZ BB:13:394(ASM) Historic cattle auction Determined AZSITE Record No. 67953 building Not Eligible and loading dock 372 AZ BB:13:395(ASM) Historic stable Determined AZSITE Record No. 67954

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 119 I-19 Frontage Road Study January 2008 Working Paper No. 1 Not Eligible 373 AZ BB:13:396(ASM) Two historic residences Determined AZSITE Record No. 67955 Not Eligible 374 AZ BB:13:397(ASM) Southern Pacific Railroad Not Evaluated AZSITE Record No. 67956 round house 375 AZ BB:13:402(ASM) Pre-protohistoric artifact Not Evaluated AZSITE Record No. 67958 scatter 376 AZ BB:13:15(ASM) Large Hohokam Village NRHP Listed Ruble (2004); Hill (1999); Valencia Site Doelle (1985); Ruble (1999); Ruble (2001); Wallace and Lindeman (2003); Shepard (2000); 377 AZ BB:13:14(ASM) Large Hohokam Village Determined Doyel (1979); Hemmings San Xavier Bridge Eligible (1968); Hill and Avann Site (1999); Ravesloot and Whittlesey (1987) 378 AZ BB:13:35(ASM) Historic Mexican community Not Evaluated AZSITE Record No. 72935 and ore reduction plant 379 AZ BB:13:49(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 72940 380 AZ BB:13:56(ASM) Multi-component site; Determined AZSITE Record No. 72943 evidence of prehistoric Eligible occupation, historic adobe structure 381 AZ BB:13:74(ASM) Hohokam habitation site Not Evaluated Betancourt (1978); Huckell (1993); O'Brien et al. (1987); Wallace and Lindeman (2002); Wallace (2002); Lindeman (2002); Bradley (1980) 382 AZ BB:13:100(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 72946 383 AZ BB:13:106(ASM) Prehistoric sherd, lithic, and Recommended Courtright & Wright (1999) Los Reales ground stone scatter Eligible 384 AZ BB:13:107(ASM) Prehistoric lithic scatter Not Evaluated AZSITE Record No. 72948 385 AZ BB:13:136(ASM) Historic artifact scatter Determined AZSITE Record No. 72949 Not Eligible 386 AZ EE:1:215(ASM) Prehistoric roasting pit Recommended Stephen, et al. (1997) Not Eligible 387 AZ EE:1:216(ASM) Prehistoric sherd scatter Recommended Stephen, et al. (1997) and roasting pit Eligible 388 AZ EE:1:217(ASM) Prehistoric sherd and lithic Recommended Stephen, et al. (1997) scatter Eligible 389 AZ EE:1:219(ASM) Historic trash scatter Recommended Stephen, et al. (1997) Not Eligible 390 AZ EE:1:220(ASM) Historic trash scatter Recommended Stephen, et al. (1997) Not Eligible 391 AZ EE:1:221(ASM) Prehistoric light sherd Recommended Stephen, et al. (1997) Andrea's Rest chipped stone and ground Eligible stone scatter 392 AZ EE:1:222(ASM) Prehistoric sherd and lithic Recommended Stephen, et al. (1997) Nicole's Niche scatter Eligible 393 AZ EE:1:223(ASM) Large sherd lithic and Recommended Ezzo (2006); Stephen et al. Kohl Meyer's Cache ground stone scatter Eligible (1997) 394 AZ EE:1:227(ASM) Three rock piles Recommended Stephen, et al. (1997) Not Eligible 395 AZ DD:4:256(ASM) Hearth site Not Evaluated Riggs and Van West (1998); Riggs (1998) 396 AZ EE:1:13(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 75165 397 AZ EE:1:14(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 75166 398 AZ EE:1:15(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 75167 399 AZ EE:1:26(ASM) Prehistoric sherd scatter Not Evaluated Frick (1954) 400 AZ EE:4:43(ASM) Railroad alignment and Multiple segments Hathaway (1996); Wenker New Mexico and associated features Determined Eligible; (1996); Lefthand (1996); Arizona Railroad Others Not Eligible Wright (1996) from Benson - Fairbank - Nogales

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 120 I-19 Frontage Road Study January 2008 Working Paper No. 1 Multiple Site No. Assigned: AZ EE:5:23 (ASM) AZ EE:7:136 (ASM) AZ EE:8:14 (ASM) 401 AZ AA:16:432(ASM) Hohokam low density sherd, Recommended Courtright & Wright (1999) lithic, and ground stone Eligible scatter 402 AZ EE:9:183(ASM) Historic trash dump Determined Swartz (2000) Not Eligible 403 AZ AA:16:47(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 76956 404 AZ AA:16:53(ASM) Hohokam sherd and lithic Not Evaluated AZSITE Record No. 76957 scatter 405 AZ AA:16:60(ASM) Hohokam two heavy artifact Not Evaluated AZSITE Record No. 76968 Buckeleu Gulch Site scatters 406 AZ AA:16:67(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 76981 407 AZ AA:16:86(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 77000 Multiple Site No. Assigned: AZ AA:16:86 (ASM) T.A.B.-20-A.P. 408 AZ DD:4:261(ASM) Hohokam artifact scatter Recommended AZSITE Record No. 77116 and water control features Not Eligible 409 AZ EE:1:295(ASM) Prehistoric artifact scatter Recommended AZSITE Record No. 77263 Eligible 410 AZ EE:1:301(ASM) Prehistoric artifact scatter Recommended AZSITE Record No. 77264 Eligible 411 AZ AA:12:875(ASM) Under ground natural gas Multiple segments Hesse (2003); Jones, El Paso Natural Gas pipeline circa 1930 Determined Eligible; Kaldahl, and Dart (2001); Pipeline No. 1007 Others Not Eligible Hesse and Chenault (2003) Multiple Site No. Assigned: AZ AA:12:875 (ASM) AZ AA:7:505 (ASM) 412 AZ BB:13:534(ASM) Prehistoric site with rock Recommended AZSITE Record No. 77580 features Eligible 413 AZ BB:13:17(ASM) Large Hohokam Village Portions Determined AZSITE Record No. 82004 Julian Wash Site Eligible; Multiple Site No. Others Not Eligible Assigned: AZ BB:13:17 (ASM) AZ BB:13:69 (ASM) AZ BB:13:98 (ASM) 414 AZ BB:13:679(ASM) Tucson-Nogales railroad Recommended Smith and Wheeler (2001) Tucson and Nogales alignment and associated Eligible Railroad features Multiple Site No. Assigned: AZ BB:13:679 415 AZ BB:13:709(ASM) Historic ranch property Recommended Bray (2002) Not Eligible 416 AZ EE:9:224(ASM) Archaic lithic scatter Recommended Bauer(2001) Not Eligible 417 AZ DD:8:127(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 85275 418 AZ EE:1:289(ASM) Hohokam sherd and lithic Recommended AZSITE Record No. 85413 scatter Eligible 419 AZ EE:1:290(ASM) Hohokam artifact scatter Recommended AZSITE Record No. 85414 Eligible 420 AZ BB:13:147(ASM) Low-density historic trash Recommended AZSITE Record No. 85419 scatter Eligible 421 AZ EE:9:51(ASM) Hohokam sherd and lithic Recommended Schroeder (2006); Curtis scatter Eligible (2003); Lite et al. (1996); Breternitz (2003) 422 AZ EE:9:1(BLM) Hohokam artifact scatter Recommended AZSITE Record No. 85948

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 121 I-19 Frontage Road Study January 2008 Working Paper No. 1 Multiple Site No. Eligible Assigned: BLM-202-1787 423 AZ EE:9:2(BLM) Historic military post and Recommended AZSITE Record No. 85949 Multiple Site No. associated features, circa Eligible Assigned: 1910 BLM-020-1788 424 AZ BB:13:724(ASM) Historic artifact and trash Recommended AZSITE Record No. 86834 scatter Not Eligible 425 AZ DD:4:262(ASM) Multi-component site: Determined AZSITE Record No. 86840 prehistoric sherd and lithic Eligible scatter; historic artifact scatter 426 AZ DD:4:263(ASM) Historic water control Recommended AZSITE Record No. 86841 features Eligible 427 AZ EE:1:349(ASM) Historic billing irrigation Recommended Thurtle (2002) canal Not Eligible 428 AZ EE:1:299(ASM) Hohokam artifact scatter Recommended Wright (2000) Eligible 429 AZ EE:1:300(ASM) Railroad alignment and Recommended Wright (2000) Twin Buttes associated features Not Eligible Railroad 430 AZ BB:13:727(ASM) Prehistoric artifact scatter Recommended Slawson (2004) Eligible 431 AZ DD:8:19(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90586 432 AZ DD:8:12(ASM) Prehistoric artifact scatter Not Evaluated Lite et al. (1996); Adams Palo Parado and Hoffman (1995) Multiple Site No. Assigned: AZ DD:8:2 (ASM) 433 AZ DD:8:22(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90597 434 AZ DD:8:23(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90598 435 AZ DD:8:24(ASM) Historic Mexican dwelling Not Evaluated AZSITE Record No. 90599 and associated artifacts 436 AZ DD:8:25(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90600 437 AZ DD:8:27(ASM) Historic religious structure Not Evaluated AZSITE Record No. 90602 and artifact scatter 438 AZ DD:8:28(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 90603 439 AZ DD:8:32(ASM) Apache site, circa 1700; Not Evaluated AZSITE Record No. 90607 artifact scatter 440 AZ DD:8:34(ASM) Unknown mound structures Not Evaluated AZSITE Record No. 90608 and irrigation ditch 441 AZ DD:8:40(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90614 442 AZ DD:8:53(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90619 443 AZ DD:8:57(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90620 and trash mound 444 AZ DD:8:122(ASM) Hohokam village with water Not Evaluated AZSITE Record No. 90644 control feature 445 AZ DD:8:128(ASM) Hohokam village Not Evaluated AZSITE Record No. 90645 Tinaja Canyon Site 446 AZ DD:8:129(ASM) Protohistoric artifact scatter Not Evaluated AZSITE Record No. 90646 England Ranch Site 447 AZ DD:8:130(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90647 448 AZ DD:8:140(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90651 449 AZ DD:8:141(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90652 450 AZ DD:8:142(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90653 451 AZ DD:8:143(ASM) Prehistoric or early historic Not Evaluated AZSITE Record No. 90654 lithic scatter 452 AZ DD:8:144(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90655 with rock feature 453 AZ DD:8:33(ASM) Historic Presidio NRHP Listed Diehl (2003); Shenk and Tubac Presidio Teague (1975); Huckell and Multiple Site No. Huckell (1982); Thiel (1995) Assigned: AZ DD:8:10 (ASM)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 122 I-19 Frontage Road Study January 2008 Working Paper No. 1 454 AZ EE:9:2(ASM) Historic Spanish town Not Evaluated AZSITE Record No. 90657 Calabasas Multiple Site No. Assigned: AZ EE:9:87 (ASM) 455 AZ EE:9:3(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90658 Tortaleta Site and possible ball court; historic dump 456 AZ EE:9:19(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90674 457 AZ EE:9:42(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90697 and historic house 458 AZ EE:9:43(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 90698 459 AZ EE:9:44(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90699 460 AZ EE:9:45(ASM) Historic ranch house, ruin. Not Evaluated AZSITE Record No. 90700 461 AZ EE:9:50(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90705 462 AZ EE:9:52(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 90706

463 AZ EE:9:53(ASM) Hohokam artifact scatter Not Evaluated Grebinger, P.F. 1971 Potrero Creek Site 464 AZ EE:9:54(ASM) Prehistoric sherd scatter Not Evaluated AZSITE Record No. 90708

465 AZ EE:9:63(ASM) Historic house and religious Not Evaluated AZSITE Record No. 90717 Santa Teresa structure Urrea's "Chapel" 466 AZ EE:9:64(ASM) Historic artifact scatter Not Evaluated AZSITE Record No. 90718 467 AZ EE:9:65(ASM) Historic military and artifact Not Evaluated AZSITE Record No. 90719 Fort Mason scatter 468 AZ EE:9:66(ASM) Historic artifact scatter Not Evaluated AZSITE Record No. 90720 469 AZ EE:9:67(ASM) Hohokam village Not Evaluated AZSITE Record No. 90721 St. Andrew's Church Cremations 470 AZ EE:9:68(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90722 471 AZ EE:9:74(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90729 472 AZ EE:9:81(ASM) Multi-component of Not Evaluated AZSITE Record No. 90736 prehistoric artifact scatter, house foundation, and associated artifacts 473 AZ EE:9:82(ASM) Multi-component prehistoric Not Evaluated AZSITE Record No. 90737 artifact scatter and historic house foundation 474 AZ EE:9:86(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90741 475 AZ EE:9:87(ASM) Historic settlement Not Evaluated AZSITE Record No. 90742 Multiple Site No. Assigned: AZ EE:9:2 (ASM) 476 AZ EE:9:88(ASM) Historic ranch NRHP Listed AZSITE Record No. 90743 Pete Kitchen Ranch 2-20-1975 477 AZ EE:9:89(ASM) Historic City Hall and Fire NRHP Listed AZSITE Record No. 90744 Old Nogales City Station 4-03-1980 Hall and Fire Station 223 Grand Avenue 478 AZ EE:9:90(ASM) Historic trash dumps Not Evaluated AZSITE Record No. 90745 479 AZ EE:9:92(ASM) Historic Courthouse NRHP Listed AZSITE Record No. 90747 Santa Cruz County Court and Morley Streets 12-07-1977 Court House 480 AZ EE:9:93(ASM) Hohokam village Not Evaluated AZSITE Record No. 90748 Nogales City Dump Site 481 AZ EE:9:103(ASM) Hohokam artifact scatter Not Evaluated AZSITE Record No. 90758 Mary Margarita Site 482 AZ EE:9:104(ASM) Prehistoric artifact scatter Not Evaluated AZSITE Record No. 90759 483 AZ EE:9:105(ASM) Multi-component prehistoric Not Evaluated AZSITE Record No. 90760 artifact scatter, historic habitation, and scatter 091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 123 I-19 Frontage Road Study January 2008 Working Paper No. 1 484 AZ EE:9:107(ASM) Prehistoric sherd and lithic Not Evaluated Slawson (1991); Deaver Multiple Site No. scatter and Van West (2001); Assigned: Gardiner et al. (1987) AZ EE:9 (BLM) AZ EE:9:102 (ASM) 485 AZ EE:9:108(ASM) Prehistoric artifact scatter Not Evaluated Deever and Van West (2001); Gardiner et al. (1987) 486 AZ EE:9:109(ASM) Historic National Guard Not Evaluated Deever and Van West Multiple Site No. encampment, circa 1916 (2001); Gardiner et al. Assigned: (1987) AZ EE:9:2 (BLM) 487 AZ EE:9:225(ASM) Prehistoric rock pile Recommended Stephen (2001) Not Eligible 488 AZ BB:13:707(ASM) Historic trash dump Recommended Hill, et.al. (2002) Not Eligible 489 AZ EE:1:359(ASM) Hohokam artifact scatter Recommended Hesse (2003) Eligible 490 Unknown Barrio de Tubac NRHP Listed N/A Archaeological District 491 Unknown Old Tubac Schoolhouse NRHP Listed N/A 492 Unknown Barrio Libre Historic District, NRHP Listed N/A Tucson 493 Unknown Marsh Heights Historic NRHP Listed N/A District, Nogales 494 Unknown Tubac Townsite Historic NRHP Listed N/A District, Tubac 495 AZ BB:13:749 recent submission recorded N/A WestLand Resources, Inc. (ASM) Parque de Santa Cruz Project (2006-0741.ASM) 496 AZ DD:4:264(ASM) recent submission recorded N/A SWCA, Inc., Tucson Green through Valley Hills Archaeological AZ DD:4:266(ASM) Survey (2004-0494.ASM) 497 AZ DD:8:190(ASM) recent submission recorded N/A Desert Archaeology, Inc. through AZ Esperanza Ranch Survey DD:8:192(ASM) (2005-0281.ASM) 498 AZ DD:8:195(ASM) recent submission recorded N/A EnviroSystems through AZ Management, Inc. Tubac DD:8:199(ASM) and 1240-Acre Inventory (2006- AZ DD:8:201(ASM) 0428.ASM) through AZ DD:8:202(ASM) and AZ DD:8:213(ASM) 499 AZ DD:8:209(ASM), recent submission recorded N/A WestLand Resources, Inc. AZ DD:8:212(ASM), Montosa Ranch Survey and AZ (2007-0588.ASM) DD:8:214(ASM) 500 AZ EE:1:366(ASM) recent submission recorded N/A Northland Research, Inc., Tempe Camino de la Canoa and Whitehouse Canyon Road Survey (2005- 0589.ASM) 501 AZ DD:8:209(ASM), recent submission recorded N/A WestLand Resources, Inc. AZ DD:8:212(ASM), Montosa Ranch Survey and AZ (2007-0588.ASM) DD:8:214(ASM) 502 AZ EE:1:366(ASM) recent submission recorded N/A Northland Research, Inc., Tempe Camino de la Canoa and Whitehouse Canyon Road Survey (2005- 0589.ASM)

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 124 I-19 Frontage Road Study January 2008 Working Paper No. 1 Appendix D Environmental Documentation References

1. Arizona Department of Environmental Quality. Arizona Hazardous Waste Treatment, Storage, and Disposal Facilities. Revised April 24, 2007. Available: www.azdeq.gov.

2. Arizona Wildlife Linkage Workgroup. 2006. Arizona’s Wildlife Linkages Assessment. Available: Accessed September 27, 2007.

3. – –: Hazardous Material Incident Logbook. Online. Updated April 7, 2007. Available: www.azdeq.gov.

4. – –: Leaking Underground Storage Tank Database. Online. Updated April 16, 2007. Available: www.azdeq.gov.

5. – –: Superfund Programs Section, Eastern Phoenix Area. Online. Updated October 13, 2006. Available: www.azdeq.gov.

6. – –: Underground Storage Tank Database. Online. Updated April 16, 2007. Available: www.azdeq.gov.

7. – –: Interactive GIS eMaps. Online. Updated May 7, 2007. Available: www.azdeq.gov.

8. Arizona Game and Fish Department. Environmental Review On-line Tool. Online. Accessed on May 30, 2007. Available: http://www.azgfd.gov/hgis.

9. Brown, D.E., editor. 1994. Biotic Communities of the Southwestern United States and Northwestern Mexico. The University of Utah Press.

10. DeLORME 3-D TopoQuads (2002). United States Geological Survey (USGS). USGS 7.5- Minute Quadrangles, Arizona; Tucson, Tucson SW,Sahuarita, Green Valley, Esperanza Mill, Amado, Tubac, Pena Blanca Lake, Rio Rico, and Nogales .

11. Federal Emergency Management Agency (FEMA). Flood Insurance Rate Map (FIRM): Pima County, Arizona (Unincorporated & Incorporated Areas). Map Numbers. 04019C228K, 04019C2236K, 04019C2238K, 04019C2830K, 04019C2840K, 04019C3450K, 04019C3415K, 04019C3905K, 04019C3885K, 04019C3895K, and 04019C4310K. Effective Date: February 8, 1999.

12. Federal Emergency Management Agency (FEMA). Flood Insurance Rate Map (FIRM): Santa Cruz County, Arizona. Map Numbers. 040090010B (Effective Date: August 19, 1997); 0400900020B (Effective Date: August 23, 2000); 0400900135A, 0400900145A, 0400900165A, and 0400900290A (Effective Date: August 1, 1980); and 0400900280B (Effective Date: February 4, 1998).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 125 I-19 Frontage Road Study January 2008 Working Paper No. 1 13. Federal Emergency Management Agency (FEMA). Flood Insurance Rate Map (FIRM): Nogales, City/Santa Cruz County, Arizona. Map Numbers. 0400910001B, 0400910004B, and 0400910007B. Effective Date: April 15, 1981.

15. Pima County Multi-species Conservation Plan, Pima County, Arizona (Draft). Available: < http://www.pima.gov/cmo/sdcp/>. Accessed October 15, 2007.

16. Sonoran Desert Conservation Plan (Draft). Available: < http://www.pima.gov/cmo/sdcp/>. Accessed October 15, 2007.

17. U.S. Department of Agriculture, Soil Conservation Service. 1991. Soil Survey of Pima County, Arizona, Eastern Part.

18. U.S. Department of Agriculture, Soil Conservation Service. 1991. Soil Survey of Tucson- Avra Valley Area, Arizona.

19. U.S. Department of Agriculture, Soil Conservation Service. 1991. Soil Survey of Santa Cruz and Parts of Cochise and Pima Counties, Arizona.

20. U.S. Department of Commerce, Bureau of the Census. Census 2000 Summary File 3 (SF3). Table P1. Total Population. Washington.

21. – –: Census 2000 Summary File 3 (SF3). Table P7. Hispanic or Latino by Race. Washington.

22. – –: Census 2000 Summary File 3 (SF3). Table P8. Sex by Age. Washington.

23. – –: Census 2000 Summary File 3 (SF3). Table P9. Household Type (Including Living Alone) by Relationship. Washington.

24. – –: Census 2000 Summary File 3 (SF3). Table P19. Age by Language Spoken at Home by Ability to Speak English for the Population 5 Years and Over. Washington.

25. – –: Census 2000 Summary File 3 (SF3). Table P42. Sex by Age by Disability Status by Employment Status for the Civilian Noninstitutionalized Population 5 Years and Over. Washington.

26. – –: Census 2000 Summary File 3 (SF3). Table P87. Poverty Status in 1999 by Age. Washington.

27. U.S. Department of the Interior, Fish and Wildlife Service, Arizona Ecological Services Field Office. 2003. “County Species List –Pima County. (Revised August 10, 2007)” (Accessed August 28, 2007).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 126 I-19 Frontage Road Study January 2008 Working Paper No. 1 28. U.S. Department of the Interior, Fish and Wildlife Service, Arizona Ecological Services Field Office. 2003. “County Species List –Santa Cruz County. (Revised August 10, 2007)” (Accessed August 28, 2007).

091374019 Arizona Department of Transportation ADOT I-19 FR – WP1 (01-04-08).doc 127 I-19 Frontage Road Study January 2008 Working Paper No. 1