DOCSLIB.ORG

Greenberry Irrigation District Proposed Water Service Contract Draft Environmental Assessment

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Greenberry Irrigation District Proposed Water Service Contract Draft Environmental Assessment PROPOSED WATER SERVICE CONTRACT GREENBERRY IRRIGATION DISTRICT WILLAMETTE RIVER BASIN PROJECT, BENTON COUNTY, OREGON DRAFT ENVIRONMENTAL ASSESSMENT U.S. DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION PACIFIC NORTHWEST REGION LOWER COLUMBIA AREA OFFICE PORTLAND, OREGON FEBRUARY 2007 MISSION STATEMENTS The mission of the Department of the Interior is to protect and provide access to our nations natural and cultural heritage and honor our trust responsibilities to Indian tribes and our commitments of island communities. _________________________________________ The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. PROPOSED WATER-SERVICE CONTRACT GREENBERRY IRRIGATION DISTRICT, BENTON COUNTY, WILLAMETTE RIVER BASIN PROJECT, OREGON DRAFT ENVIRONMENTAL ASSESSMENT US BUREAU OF RECLAMATION PACIFIC NORTHWEST REGION LOWER COLUMBIA AREA OFFICE PORTLAND, OR PREPARED ON THE BEHALF OF GREENBERRY IRRIGATION DISTRICT, BENTON COUNTY, OR BY CRAVEN CONSULTANT GROUP, TIGARD, OR FEBRUARY 2007 List of Acronyms and Abbreviations ACOE U.S. Army Corps of Engineers BA biological assessment BIA Bureau of Indian Affairs, Department of the Interior cfs cubic feet per second District Greenberry Irrigation District DSL Oregon Department of State Lands EA environmental assessment EFH essential fish habitat EO Executive Order ESA Endangered Species Act ESA Endangered Species Act ESU evolutionarily significant units FWS US Fish and Wildlife Service, Department of the Interior ITA Indian Trust Assets MSA Magnuson-Stevens Fishery Conservation and Management Act NEPA National Environmental Policy Act NHPA National Historic Preservation Act NMFS National Marine Fisheries Service, US Department of Commerce ODEQ Oregon Department of Environmental Quality ODFW Oregon Department of Fish and Wildlife OWRD Oregon Water Resources Department POD point of diversion Reclamation US Bureau of Reclamation, Department of the Interior RM river mile SHPO State Historic Preservation Office USGS US Geological Survey, Department of the Interior ii CONTENTS 1. PURPOSE AND NEED FOR ACTION ...................................................... 1 1.1. BACKGROUND ..............................................................................1 1.2. PURPOSE AND NEED FOR ACTION ..................................................2 1.3. LOCATION AND GENERAL DESCRIPTION OF AFFECTED AREA...........................................................................................2 1.4. DESCRIPTION OF CURRENT FACILITIES ...........................................5 1.5. OTHER RELATED ACTIONS OR ACTIVITIES.......................................5 2. ALTERNATIVES ....................................................................................... 7 2.1. NO ACTION ALTERNATIVE..............................................................7 2.2. PROPOSED ACTION ......................................................................7 2.3. ALTERNATIVES CONSIDERED BUT ELIMINATED FROM FURTHER CONSIDERATION ..........................................................12 2.3.1. Groundwater Supplies...................................................12 2.3.2. New Dams or Other Water Storage Facilities................12 2.3.3. New Water Right for Natural Flow from Willamette .....................................................................12 2.3.4. Conservation of Existing Irrigation Water Supply ...........................................................................13 2.3.5. New Point-of-Diversion for Intake..................................13 3. AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES .................................................................................. 15 3.1. ECONOMICS ...............................................................................15 3.1.1. Affected Environment ....................................................15 3.1.2. Environmental Consequences ......................................16 3.2. HYDROLOGY ..............................................................................18 3.2.1. Affected Environment ....................................................18 3.2.2. Environmental Consequences ......................................20 3.3. WATER QUALITY.........................................................................22 3.3.1. Affected Environment ....................................................22 3.3.2. Environmental Consequences ......................................23 3.3.3. Mitigation Measures ......................................................24 3.4. FLOODPLAINS AND WETLANDS.....................................................25 3.4.1. Affected Environment ....................................................25 3.4.2. Environmental Consequences ......................................25 3.5. VEGETATION ..............................................................................26 3.5.1. Affected Environment ....................................................26 3.5.2. Environmental Consequences ......................................26 iii 3.5.3. Mitigation Measures.......................................................27 3.6. FISH AND WILDLIFE .....................................................................27 3.6.1. Affected Environment ....................................................27 3.6.2. Environmental Consequences.......................................28 3.7. THREATENED AND ENDANGERED SPECIES ....................................30 3.7.1. Vegetation .....................................................................30 3.7.2. Wildlife ...........................................................................31 3.7.3. Fish................................................................................33 3.8. VISUAL RESOURCES....................................................................35 3.8.1. Affected Environment ....................................................35 3.8.2. Environmental Consequences.......................................35 3.8.3. Mitigation Measures.......................................................36 3.9. RECREATION ..............................................................................36 3.9.1. Affected Environment ....................................................36 3.9.2. Environmental Consequences.......................................36 3.10. LAND USE ..................................................................................37 3.10.1. Affected Environment ....................................................37 3.10.2. Environmental Consequences.......................................37 3.11. HISTORIC PROPERTIES................................................................37 3.11.1. Affected Environment ....................................................37 3.11.2. Environmental Consequences.......................................38 3.11.3. Mitigation Measures.......................................................38 3.12. INDIAN SACRED SITES .................................................................39 3.12.1. Affected Environment ....................................................39 3.12.2. Environmental Consequences.......................................40 3.13. INDIAN TRUST ASSETS ................................................................40 3.13.1. Affected Environment ....................................................40 3.13.2. Environmental Consequences.......................................40 3.14. ENVIRONMENTAL JUSTICE............................................................41 3.14.1. Affected Environment ....................................................41 3.14.2. Environmental Consequences.......................................41 3.15. CUMULATIVE IMPACTS .................................................................42 4. CONSULTATION AND COORDINATION...............................................43 4.1. AGENCIES CONSULTED ...............................................................43 4.2. PUBLIC INVOLVEMENT .................................................................43 4.3. EA DISTRIBUTION .......................................................................46 5. LITERATURE CITED...............................................................................47 iv APPENDICES Appendix A – Figures Appendix B – Agency Correspondence Appendix C – Agency and Public Mailing List, Public Scoping Letter, News Release, and Comments Received FIGURES Figure A-1. Project Vicinity Map for Greenberry Irrigation District Figure A-2. Existing Diversion Locations Figure A-3. Existing and Proposed Irrigated Lands Figure A-4. Proposed Pipeline Route Figure A-5. Detail of Proposed Pipeline Route Figure A-6. Intake Structure Location Figure A-7. Plan View of Intake Area Figure A-8. Intake and Fish Screen Figure A-9. Slant Retrievable Intake and Fish Screen Figure A-10. Retractable T-Screen Figure A-11. Winkle Lake Outfall Structure Figure A-12. Muddy Creek Outfall Structure Figure A-13. Typical Trench for Single or Dual PVC Piping TABLES Table 2-1. Approximate Acreage in Greenberry Irrigation District.................................... 8 Table 2-2. Amount of Fill and Excavation for GID Pipeline Project................................ 11 Table 3-1. Monthly Mean Streamflow at Harrisburg, Willamette River, OR (1944­ 2004). ......................................................................................................................18 Table 3-2. Muddy Creek Watershed Area and Channel Lengths for Tributaries.
Load more

Recommended publications
  • In Partial Fulfillment Of
    WATER UTILI AT'ION AND DEVELOPMENT IN THE 11ILLAMETTE RIVER BASIN by CAST" IR OLISZE "SKI A THESIS submitted to OREGON STATE COLLEGE in partialfulfillment of the requirements for the degree of MASTER OF SCIENCE June 1954 School Graduate Committee Data thesis is presented_____________ Typed by Kate D. Humeston TABLE OF CONTENTS CHAPTER PAGE I. INTRODUCTION Statement and History of the Problem........ 1 Historical Data............................. 3 Procedure Used to Explore the Data.......... 4 Organization of the Data.................... 8 II. THE WILLAMETTE RIVER WATERSHED Orientation................................. 10 Orography................................... 10 Geology................................. 11 Soil Types................................. 19 Climate ..................................... 20 Precipitation..*.,,,,,,,................... 21 Storms............'......................... 26 Physical Characteristics of the River....... 31 Physical Characteristics of the Major Tributaries............................ 32 Surface Water Supply ........................ 33 Run-off Characteristics..................... 38 Discharge Records........ 38 Ground Water Supply......................... 39 CHAPTER PAGE III. ANALYSIS OF POTENTIAL UTILIZATION AND DEVELOPMENT.. .... .................... 44 Flood Characteristics ........................ 44 Flood History......... ....................... 45 Provisional Standard Project: Flood......... 45 Flood Plain......... ........................ 47 Flood Control................................ 48 Drainage............
    [Show full text]
  • Bear Creek Coastal Cutthroat Trout Habitat Connectivity And
    Bear Creek Coastal Cutthroat Trout Habitat Connectivity and Enhancement State(s): Oregon Managing Agency/Organization: Long Tom Watershed Council and Bureau of Land Management Type of Organization: Nonprofit Organization/Federal Government Project Status: Underway Project type: WNTI Project Project action(s): Riparian or instream habitat restoration, Barrier removal or construction Trout species benefitted: coastal cutthroat trout Population: Long Tom River Watershed, Bear Creek The project will reconnect 5.5 miles of high-quality headwater spawning habitat and cold water refugia and enhance a one mile stretch of in-stream habitat for coastal cutthroat trout in western Oregon. As part of the project, four, human-made fish passage barriers will be remedied on Bear Creek, an Oregon Coast Range tributary to Coyote Creek about nine miles southwest of Eugene that provides spawning habitat and cold water refugia for coastal cutthroat trout. Three of these barriers are culverts and the other is a dam. The project will leverage significant contributions from the Bureau of Land Management (BLM) Eugene District, Oregon Watershed Enhancement Board, as well as the BLM Resource Advisory Committee to remedy fish- passage barriers on private, BLM, and Lane County Public Works property, resulting in the removal of the final four priority barriers in Bear Creek and the connection of mainstem Coyote Creek to high-quality headwater habitat. Additional project objectives are to place 60 conifer logs in a 0.5 mile stretch of Bear Creek to increase pool depth and frequency and improve in-stream habitat complexity. Effects of the project will be assessed on the physical habitat and fish community in Bear Creek by conducting pre- and post-project rapid bio- assessment snorkel surveys and large woody debris surveys.
    [Show full text]
  • Gardening with Native Plants Poster
    OD1251 POSTER Native Plants FINAL_ native plants poster-mailer 2/1/17 11:18 AM Page 2 SOURCES FOR NATIVE PLANTS & SEEDS BOOKS AND WORKSHOPS Annual Plant Sales Retail Nurseries Books riend o Tron ree o e aie City of Portland, Bureau of Environmental Robin Rose, Caryn Chachulske & Diane Haase, 503-636-4398 West Linn, OR 97068 Services, Garden Smart, Propagation of Pacific Northwest Native Plants, 503-638-5945 www.portlandoregon.gov/bes/gardensmart OSU Press Lea oania arden Remember: 503-823-9503 o ae aie City of Portland, Bureau of Planning and George Schenk, Moss Gardening: Including Oregon City, OR 97045 Sustainability, Portland Plant List, Lichens, Liverworts and other Miniatures, use the right Porand don Soie 503-631-2451 www.portlandoregon.gov/bes/plantlist Timber Press plant in the 503-292-6855 Liinae Charlotte Corkran and Chris Thoms, Sara B. Stein, Noah’s Garden: Restoring the right place. a noma Soi aer Ecology of Our Own Backyards, Houghton Portland, OR 97227 Amphibians of Oregon, Washington, & British oneraion iri Columbia: A Field Identification Guide, Lone Mifflin Co. 503-248-0104 503-222-7645 Pine Publishing Douglas Tallamy, Bringing Nature Home, reon aie Pan rer Stephanie Feeney, The Northwest Gardeners’ Timber Press Woodburn, OR 97071 It is important to inquire about Resource Directory, 7th Edition, Cedarcroft Press Ronald J. Taylor, Northwest Weeds: The Ugly & seed source when buying native 503-981-2353 Ferns to Know in Oregon, Oregon State Beautiful Villains of Fields, Gardens, & Roadsides, plants. Many plants labeled Porand rer University Extension Service Mountain Press Publishing Co. “native” are often grown outside Portland, OR 97215 Shann Weston, Naturescaping: A Place for of the Pacific Northwest.
    [Show full text]
  • Flood Basalts and Glacier Floods—Roadside Geology
    u 0 by Robert J. Carson and Kevin R. Pogue WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Information Circular 90 January 1996 WASHINGTON STATE DEPARTMENTOF Natural Resources Jennifer M. Belcher - Commissioner of Public Lands Kaleen Cottingham - Supervisor FLOOD BASALTS AND GLACIER FLOODS: Roadside Geology of Parts of Walla Walla, Franklin, and Columbia Counties, Washington by Robert J. Carson and Kevin R. Pogue WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Information Circular 90 January 1996 Kaleen Cottingham - Supervisor Division of Geology and Earth Resources WASHINGTON DEPARTMENT OF NATURAL RESOURCES Jennifer M. Belcher-Commissio11er of Public Lands Kaleeo Cottingham-Supervisor DMSION OF GEOLOGY AND EARTH RESOURCES Raymond Lasmanis-State Geologist J. Eric Schuster-Assistant State Geologist William S. Lingley, Jr.-Assistant State Geologist This report is available from: Publications Washington Department of Natural Resources Division of Geology and Earth Resources P.O. Box 47007 Olympia, WA 98504-7007 Price $ 3.24 Tax (WA residents only) ~ Total $ 3.50 Mail orders must be prepaid: please add $1.00 to each order for postage and handling. Make checks payable to the Department of Natural Resources. Front Cover: Palouse Falls (56 m high) in the canyon of the Palouse River. Printed oo recycled paper Printed io the United States of America Contents 1 General geology of southeastern Washington 1 Magnetic polarity 2 Geologic time 2 Columbia River Basalt Group 2 Tectonic features 5 Quaternary sedimentation 6 Road log 7 Further reading 7 Acknowledgments 8 Part 1 - Walla Walla to Palouse Falls (69.0 miles) 21 Part 2 - Palouse Falls to Lower Monumental Dam (27.0 miles) 26 Part 3 - Lower Monumental Dam to Ice Harbor Dam (38.7 miles) 33 Part 4 - Ice Harbor Dam to Wallula Gap (26.7 mi les) 38 Part 5 - Wallula Gap to Walla Walla (42.0 miles) 44 References cited ILLUSTRATIONS I Figure 1.
    [Show full text]
  • Historical Overview
    HISTORIC CONTEXT STATEMENT The following is a brief history of Oregon City. The intent is to provide a general overview, rather than a comprehensive history. Setting Oregon City, the county seat of Clackamas County, is located southeast of Portland on the east side of the Willamette River, just below the falls. Its unique topography includes three terraces, which rise above the river, creating an elevation range from about 50 feet above sea level at the riverbank to more than 250 feet above sea level on the upper terrace. The lowest terrace, on which the earliest development occurred, is only two blocks or three streets wide, but stretches northward from the falls for several blocks. Originally, industry was located primarily at the south end of Main Street nearest the falls, which provided power. Commercial, governmental and social/fraternal entities developed along Main Street north of the industrial area. Religious and educational structures also appeared along Main Street, but tended to be grouped north of the commercial core. Residential structures filled in along Main Street, as well as along the side and cross streets. As the city grew, the commercial, governmental and social/fraternal structures expanded northward first, and with time eastward and westward to the side and cross streets. Before the turn of the century, residential neighborhoods and schools were developing on the bluff. Some commercial development also occurred on this middle terrace, but the business center of the city continued to be situated on the lower terrace. Between the 1930s and 1950s, many of the downtown churches relocated to the bluff as well.
    [Show full text]
  • Junction City Water Control District Long-Term Irrigation Water Service Contract
    Junction City Water Control District Long-Term Irrigation Water Service Contract Finding of No Significant Impact Environmental Assessment Willamette River Basin, Oregon Pacific Northwest Region PN EA 13-02 PN FONSI 13-02 U.S. Department of the Interior Bureau of Reclamation Columbia-Cascades Area Office Yakima, Washington June 2013 MISSION STATEMENTS U.S. Department of the Interior Protecting America’s Great Outdoors and Powering Our Future The Department of the Interior protects America’s natural resources and heritage, honors our cultures and tribal communities, and supplies the energy to power our future. Bureau of Reclamation The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. FINDING OF NO SIGNIFICANT IMPACT Long-Term Irrigation Water Service Contract, Junction City Water Control District U.S. Department of the Interior Bureau of Reclamation Columbia-Cascades Area Office PN FONSI13-02 Decision: It is my decision to authorize the Preferred Alternative, Alternative B - Long-term Water Service Contract, identified in EA No. PN-EA-13-02. Finding of No Significant Impact: Based on the analysis ofpotential environmental impacts presented in the attached Environmental Assessment, Reclamation has determined that the Preferred Alternative will have no significant effect on the human environment or natural and cultural resources. Reclamation, therefore, concludes that preparation of an Environmental
    [Show full text]
  • Ground Water in the Eugene-Springfield Area, Southern Willamette Valley, Oregon
    Ground Water in the Eugene-Springfield Area, Southern Willamette Valley, Oregon GEOLOGICAL SURVEY WATER-SUPPLY PAPER 2018 Prepared in cooperation with the Oregon State Engineer Ground Water in the Eugene-Springfield Area, Southern Willamette Valley, Oregon By F. J. FRANK GEOLOGICAL SURVEY WATER-SUPPLY PAPER 2018 Prepared in cooperation with the Oregon State Engineer UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1973 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 72-600346 For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 Price: Paper cover $2.75, domestic postpaid; $2.50, GPO Bookstore Stock Number 2401-00277 CONTENTS Page Abstract ______________________ ____________ 1 Introduction _________ ____ __ ____ 2 Geohydrologic system ___________ __ _ 4 Topography _____________ ___ ____ 5 Streams and reservoirs ______ ___ _ __ _ _ 5 Ground-water system ______ _ _____ 6 Consolidated rocks __ _ _ - - _ _ 10 Unconsolidated deposits ___ _ _ 10 Older alluvium ____ _ 10 Younger alluvium __ 11 Hydrology __________________ __ __ __ 11 Climate _______________ _ 12 Precipitation ___________ __ 12 Temperature -__________ 12 Evaporation _______ 13 Surface water __________ ___ 14 Streamflow _ ____ _ _ 14 Major streams __ 14 Other streams ________ _ _ 17 Utilization of surface water _ 18 Ground water __________ _ __ ___ 18 Upland and valley-fringe areas 19 West side _________ __ 19 East side __________ ________________________ 21 South end ______________________________ 22 Central lowland ________ __ 24 Occurrence and movement of ground water 24 Relationship of streams to alluvial aquifers __ _ 25 Transmissivity and storage coefficient ___ _ 29 Ground-water storage _ __ 30 Storage capacity _ .
    [Show full text]
  • Investigating Processes Shaping Willamette Valley
    BEHIND THE SCENES: INVESTIGATING PROCESSES SHAPING WILLAMETTE VALLEY ARCHITECTURE 1840-1865 WITH A CASE STUDY IN BROWNSVILLE by SUSAN CASHMAN TREXLER A THESIS Presented to the Interdisciplinary Studies Program: Historic Preservation and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Master of Science June 2014 THESIS APPROVAL PAGE Student: Susan Cashman Trexler Title: Behind the Scenes: Investigating Processes Shaping Willamette Valley Architecture 1840-1865 With a Case Study in Brownsville This thesis has been accepted and approved in partial fulfillment of the requirements for the Master of Science degree in the Interdisciplinary Studies Program: Historic Preservation by: Dr. Susan Hardwick Chairperson Liz Carter Committee Member and Kimberly Andrews Espy Vice President for Research and Innovation; Dean of the Graduate School Original approval signatures are on file with the University of Oregon Graduate School. Degree awarded June 2014 ii © 2014 Susan Cashman Trexler iii THESIS ABSTRACT Susan Cashman Trexler Master of Science Interdisciplinary Studies Program: Historic Preservation June 2014 Title: Behind the Scenes: Investigating Processes Shaping Willamette Valley Architecture 1840-1865 With a Case Study in Brownsville This thesis studies the diffusion of architectural types and the rise of regionally distinct typologies in the Willamette Valley’s settlement period (1840-1865) in Oregon. Using Geographic Information Systems (GIS) to analyze the dispersion of architectural types within the Willamette Valley revealed trends amongst the extant settlement architecture samples. Brownsville, Oregon, was identified to have a locally-specific architectural subtype, the closer study of which enabled deeper investigation of the development of architectural landscapes during the Willamette Valley’s settlement period.
    [Show full text]
  • State Capitol State Park
    STATE CAPITOL STATE PARK Comprehensive Park Plan • 2010 The mission of the Oregon Parks and Recreation Department is to provide and protect outstanding natural, scenic, cultural, historic and recreational sites for the enjoyment and education of present and future generations. OREGON PARKS AND RECREATION DEPARTMENT 725 Summer Street N.E., Suite C Salem, Oregon 97301-0792 Information Center: 1-800-551-6949 egov.oregon.gov/OPRD/index.shtml Title: State Capitol State Park, Parkwide Plan 2010 Prepared by: Kathy Schutt Publication Rights: Information in this report may be copied and used with the condition that credit is give to Oregon Parks and Recreation Department. This report has been prepared for in-house use and will not be made available for sale. Photographs and graphics may not be reproduced for reuse without permission of the owners or the repositories noted in the captions. Booklet Images: OPRD Archives 2010 – State Capitol State Park, Historic images from Salem Public Library Historic Photograph Collections, Salem Public Library, Salem, Oregon and OSU Archives Table of Contents 01: Plan Introduction and Summary ....................................................................1 02: History of the Park Site ...................................................................................9 03: Park Context ..................................................................................................19 04: Park Assessments ..........................................................................................25 05: Park
    [Show full text]
  • Lower Long Tom River Haibtat Improvement Project
    Lower Long Tom River Habitat Improvement Plan 2018 Developed by: Confluence Consulting, LLC and Long Tom Watershed Council Lower Long Tom River Habitat Improvement Plan January 2018 1 | P a g e Table of Contents Executive Summary ............................................................................................................................................................................... 4 Introduction............................................................................................................................................................................................ 6 Study Goals and Opportunities ...................................................................................................................................................... 7 Stakeholders and Contributors ....................................................................................................................................................... 7 Background on the Lower Long Tom River .................................................................................................................................... 9 Long Tom Fisheries ............................................................................................................................................................................ 11 Fishery Background (excerpted from the US Army Corps of Engineers report “Long Term on the Long Tom,” February 2014) ...............................................................................................................................................................................
    [Show full text]
  • Drainage Basin Morphology in the Central Coast Range of Oregon
    AN ABSTRACT OF THE THESIS OF WENDY ADAMS NIEM for the degree of MASTER OF SCIENCE in GEOGRAPHY presented on July 21, 1976 Title: DRAINAGE BASIN MORPHOLOGY IN THE CENTRAL COAST RANGE OF OREGON Abstract approved: Redacted for privacy Dr. James F. Lahey / The four major streams of the central Coast Range of Oregon are: the westward-flowing Siletz and Yaquina Rivers and the eastward-flowing Luckiamute and Marys Rivers. These fifth- and sixth-order streams conform to the laws of drain- age composition of R. E. Horton. The drainage densities and texture ratios calculated for these streams indicate coarse to medium texture compa- rable to basins in the Carboniferous sandstones of the Appalachian Plateau in Pennsylvania. Little variation in the values of these parameters occurs between basins on igneous rook and basins on sedimentary rock. The length of overland flow ranges from approximately i mile to i mile. Two thousand eight hundred twenty-five to 6,140 square feet are necessary to support one foot of channel in the central Coast Range. Maximum elevation in the area is 4,097 feet at Marys Peak which is the highest point in the Oregon Coast Range. The average elevation of summits in the thesis area is ap- proximately 1500 feet. The calculated relief ratios for the Siletz, Yaquina, Marys, and Luckiamute Rivers are compara- ble to relief ratios of streams on the Gulf and Atlantic coastal plains and on the Appalachian Piedmont. Coast Range streams respond quickly to increased rain- fall, and runoff is rapid. The Siletz has the largest an- nual discharge and the highest sustained discharge during the dry summer months.
    [Show full text]
  • Willamette Valley Avas, Making Them Well-Drained and Extending Hang Time for Fruit During Final Ripening
    Oregon Wine Board WILLAMETTE VALLEY UPDATED 4.1.17 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Oregon Wine Board OREGON IN CONTEXT CELEBRATED, RENOWNED, EXQUISITE. Oregon's Willamette Valley is, at this point, synonymous with glorious Pinot noir. No other grape is as reflective of climatic and site differences, and small distances in the valley can yield wines of distinctly different character, each captivating in its own way. Oregon Wine Board OREGONOREGON IN IN CONTEXT CONTEXT WHERE IN THE WORLD IS OREGON? The world's premier winegrowing regions are found between the latitudes of 30-50°. Oregon is located in the northwestern United States at a northerly latitude between 42-46° N. BURGUNDY, OREGON, FRANCE UNITED STATES 50° N 45TH PARALLEL 30° N BORDEAUX, FRANCE NAPA VALLEY CALIFORNIA UNITED STATES 0° EQUATOR MENDOZA, 30° S ARGENTINA MARGARET RIVER, AUSTRALIA STELLENBOSCH, SOUTH AFRICA CENTRAL OTAGO, 50° S NEW ZEALAND Oregon Wine Board OREGONOREGON IN IN CONTEXT CONTEXT WALLA WALLA WASHINGTON VALLEY 46° N COLUMBIA WINE-PRODUCING GORGE WILLAMETTE REGIONS OF THE VALLEY WEST COAST SOUTHERN OREGON OREGON IDAHO Oregon is bordered by 42° N Washington to the north and California to the south. CALIFORNIA From northern Washington to NAPA VALLEY southern California, West Coast NEVADA winegrowing spans more than UTAH 1,200 miles (1,900 km) north SONOMA COUNTY to south. ARIZONA Oregon Wine BoardBoard OREGONOREGON IN IN CONTEXT CONTEXT WASHINGTON ER 17 RIV A BI C OLU M 15 14 16 PORTLAND MOUNT HOOD2 3 SALEM 6 4 PACIFIC 1 5 OCEAN 7 COAST RANGE 18 IDAHO 11 10 9 CASCADE RANGE 8 SISKIYOU MTS 12 13 CALIFORNIA NEVADA 1.
    [Show full text]