RECONNAISSANCE EVALUATION and PROJECT MANAGEMENT PLAN with an Environmental Evaluation
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RECONNAISSANCE EVALUATION AND PROJECT MANAGEMENT PLAN With an environmental evaluation. SPECIAL STUDY GILA RIVER AND TRIBUTARIES, TONTO CREEK TONTO BASIN, GILA COUNTY, ARIZONA September 2004 Los Angeles District South Pacific Division ACKNOWLEDGEMENT Many members of the Los Angeles District, U.S. Army Corps of Engineers assisted in the preparation of the Reconnaissance Evaluation and Project Management Plan (PMP) with an environmental evaluation, for the Tonto Creek Special Study, Tonto Basin, Gila County, Arizona. Primary team members familiar with the technical aspects of the project are: PROJECT MANAGER: . Kim Gavigan STUDY MANAGER: . Bryon Lake HYDROLOGY AND HYDRAULICS: . Cuong Ly SOCIOECONOMIC ANALYSIS: . Jeannine Hogg ENVIRONMENTAL RESOURCES: . Chris Serjak BIOLOGICAL ANALYSIS: . Gail Campos CULTURAL RESOURCES: . Pam Maxwell REAL ESTATE: . Steve Gale STRUCTURAL ENGINEERING: . John Lei CIVIL DESIGN: . Christopher Tu COST ENGINEERING: . Juan Dominguez GEOTECHICAL ENGINEERING: . Chris Sands GIS and PUBLIC INVOLVEMENT: . Jeanine Divis WE’RE PROUD TO Los Angeles District SIGN OUR WORK ii RECONNAISSANCE EVALUTION AND PROJECT MANAGEMENT PLAN With an environmental evaluation CONGRESSIONAL REQUEST SPECIAL STUDY TONTO CREEK TONTO BASIN, GILA COUNTY, ARIZONA CONTENTS Subject Page 1. INTRODUCTION A. General Information (1) General……………………………………………………………………………. 1 (2) Study Authority……………………………………………………….…………... 1 (3) Study Purpose and Scope Of Work (SOW)..…………………………………. 2 (4) Type and Detail of Investigation...……………………………………………... 2 (5) Study Area……………………………………………………………………….. 2 (6) Prior Studies, Reports and Existing Water Projects…………………………. 3 (7) Study Area Map………………………………………………………………….. 4 B. Assessment of Water and Land Resource Problems and Opportunities (1) Background Description of the Study Area…………………………………… 5 (2) Existing Baseline Conditions (at purposed bridge locations)……………….. 6 C. Economics (1) Human Resources, Development and Economics……………………… 10 (2) Flood Plain Development………………………………………………….. 11 (3) Specific Problems and Opportunities………………………………...……11 D. Environmental Setting and Natural Resources (1) General……………………………………………………………………………12 (2) Hazardous Toxic and Radiological Waste (HTRW) Assessment…………. 14 E. Future Without Project Conditions (1) General…………………………………………………………………………. 15 2. PROJECT MANAGEMENT PLAN…………………………………………………….. 16 3. SUMMARY OF COORDINATION, PUBLIC VIEWS AND COMMENTS (1) Coordination…………………………………………………………………….. 60 (2) Public Views and Comments………………………………………………….. 60 (3) Completion of the Document…………….……………………………………. 61 (4) Summary ………..………………………….…………………………………… 62 iii Figures Title Page Figure 1 Study Area Map 4 Plates Title Page Plate 1 USGS Gauging Station 5 Plate 2 Punkin Center Mobile Home Park 10 Plate 3 Sand and Gravel Upper Reach 11 Plate 4 The A-Cross Low-Water Ford 13 Plate 5 Existing Development East Tonto Creek 15 Tables Title Page Table 1 Tonto Creek Emergency Response Costs 12 Appendices Appendix A Environmental Evaluation 63 Appendix B Review of the 2004 HDR Report for FEMA Region IX 74 Appendix C CESPD- Milestone System 76 Appendix D List of Acronyms 78 Appendix E Public Views and Comments 80 iv RECONNAISSANCE EVALUATION AND PROJECT MANAGEMENT PLAN With an environmental evaluation CONGRESSIONAL REQUEST SPECIAL STUDY TONTO CREEK TONTO BASIN, GILA COUNTY, ARIZONA 1. INTRODUCTION A. GENERAL INFORMATION (1) Background. This Special Study is a Reconnaissance level evaluation to prepare a Project Management Plan, (PMP) for a Detailed Project Report (DPR). To clarify, the Project Management Plan (PMP) outlines what additional studies; evaluations and analyses would be required to complete a Detailed Project Report (DPR). A DPR is a Corps of Engineers decision document. Additionally, this document contains an environmental evaluation, which would be developed into the Environmental Impact Statement (EIS). An EIS would be required prior to any construction activity. The environmental evaluation presents an assessment of the conditions associated with the Local Alternatives proposed for a Bridge setting on Tonto Creek in Tonto Basin, Gila County Arizona. The Los Angeles District of the U.S. Army Corps of Engineers (the District) received Congressional Direction and Appropriation in November of 2003 to complete the evaluation and assessment of the local alternatives for a bridge setting on Tonto Creek. The report considers the three Congressional criteria provided by Arizona Congressional District 1, Congressman Renzi’s Office. These criteria are, engineering feasibility, economic efficiency and environmental sensitivity. The District performed a field reconnaissance, with visits to the study area on April 9th and July 8th, 2004. The participants included staff from the Tonto Basin Ranger District, Gila County Flood Control, the Arizona Game and Fish Department’s Habitat Branch, the U.S. Fish and Wildlife Service, the Congressional Liaison from Arizona District 1 and the Corps of Engineers. These groups visited each proposed bridge location and discussed the advantages, disadvantages, concerns, issues and opportunities associated with each location. The results of these discussions are captured in the Existing Baseline Conditions Section of this report. (2) Study Authority. The Tonto Creek Special Study located in Tonto Basin, Gila County, Arizona, is undertaken through a Congressional Request to the U.S. Army Corps of Engineers, (COE) as a Special Study. The Congressional Direction and Appropriation to perform an evaluation and assessment of local alternatives for five potential bridge setting locations along Tonto Creek in Gila County, Arizona was provided in November 2003. This study is being conducted under the Congressional Authority the 1st Session, Conference Report 108-357 of the 108th Congress, to accompany House Resolution 2754, (HR 2754) dated 7 November 2003; under the General Investigations section of Title I, Department of Defense - Civil. 1 (3) Study Purpose and Scope of Work. This Special Study conducted a Reconnaissance level Evaluation and prepared a Project Management Plan (PMP) to complete a Detailed Project Report (DPR). The PMP contains an environmental evaluation as appendix A, which presents an assessment of the current environmental conditions in the study area in proximity to the local bridge setting location alternatives. From this evaluation, determination of the preliminary optimal placement location, considering engineering feasibility, cost effectiveness and that results in the least negative impacts to the environment. From the reconnaissance evaluation the future scopes of work and cost estimates were developed for the Corps to complete a Detailed Project Report (DPR) a Corps of Engineers Decision Document. This effort was completed in cooperation with the U.S. Fish and Wildlife Service (USFWS), U.S. Forest Service, Tonto Basin Ranger District (USFS), Arizona Game and Fish Department (AGFD), Gila County Emergency Services, Public Works and the Flood Control District and the Army Corps of Engineers staff. Included in the PMP, as appendix B is the Corps Hydrology and Hydraulics section review, evaluation and assessment of the 2004 HDR Hydrologic Analysis prepared for the Federal Emergency Management Agency- Region IX. (4) Type and Detail of Investigations. This report summarizes the results of analyses and evaluation of previous local efforts and current conditions associated with planning, hydrology and hydraulics, engineering, economics, natural and cultural resources related to this Special Study. The study was conducted with sufficient detail to provide a reconnaissance level evaluation and assessment of local preliminary bridge design and setting location alternatives; considering economic efficiency, engineering feasibility and environmental sensitivity. The PMP outlines the scope and cost estimates for the Corps to complete a Detailed Project Report (DPR). This assessment of concerns and conditions was accomplished with participation from United States Fish and Wildlife Service (USFWS), Arizona Game and Fish Department (AGFD), United States Forest Service (USFS), Gila County Emergency Services, Public Works and Flood Control District and the Army Corps of Engineers, Los Angeles District. The Hydrologic Analysis for Tonto Creek and selected tributaries completed by HDR for the Federal Emergency Management Agency (FEMA) was evaluated by the Corps’ Hydrology and Hydraulics (H&H) staff and compared to previous Hydrologic analyses, to include, the 1993 Engineering study from Federal Highway Administration (FHWA) for inclusion in the PMP. The Federal Highway Administration Report will be referred to regarding the preliminary setting location recommended with respect to H&H concerns and Engineering feasibility. An evaluation of the preliminary bridge design was completed and found to be adequate, cost estimates where derived by inflating the associated construction costs outlined in the 1993 Preliminary Engineering Study prepared by the Federal Highway Administration to costs consistent with construction in 2005. (5) Study Area. Tonto Creek is a major surface watershed located in Gila County, Arizona. It extends from the Mogollon Rim, the top of the watershed, south to its confluence with the Salt River at Roosevelt Lake. The contributing drainage basin of Tonto Creek is approximately 955 square miles. The upper reaches are generally undeveloped with a principal cover of pine and juniper. The lower reaches contain some residential and business development;