Environmental Impact Statements

• Lower Snake River Juvenile Salmon Migration Feasibility Study - Environmental Impact Statement - 2002
• Dworshak Final Environmental Impact Statement - September 1975
• Columbia River System Operation Review - Final Environmental Impact Statement - November 1995
  • Summary
  • Main Report
  • Main Report Exhibits
  • Appendix A - River Operation Simulation (ROSE)
  • Appendix B - Air Quality
  • Appendix C - Anadromous Fish and Juvenile Fish Transportation
  • Appendix D - Cultural Resources
  • Appendix D Exhibits
  • Appendix E - Flood Control
  • Appendix F - Irrigation/Municipal and Industrial Water Supply
  • Appendix G - Land Use and Development
  • Appendix H - Navigation
  • Appendix I - Power
  • Appendix J - Recreation
  • Appendix K - Resident Fish
  • Appendix L - Soils, Geology, and Groundwater
  • Appendix M - Water Quality
  • Appendix N - Wildlife
  • Appendix O - Economic and Social Impacts
  • Appendix P - Canadian Entitlement Allocation Agreements
  • Appendix Q - Columbia River Regional Forum
  • Appendix R - Pacific Northwest Coordination Agreement
  • Appendix S - U.S. Fish and Wildlife Service Coordination Act Report
  • Appendix T - Comments and Responses

Environmental Assessments

• Draft Environmental Assessment, McNary Lock and Dam, Construction of End Bay Spillway Deflectors and Installation of Gate Hoists - May 2001
• Environmental Assessment, Avian Predation Deterrent Program for the Protection of Salmonids, Lower Columbia and Snake Rivers Dams, Washington and Oregon
• Environmental Assessment, Interim Lower Snake, Clearwater, and Mid-Columbia Rivers Dredging - Text or PDF October 2000
• Environmental Assessment, Payette Wastewater Treatment Plant Bank Stabilization, Payette, Idaho
• Grande Ronde River Stream Restoration, LaGrande, Oregon, Environmental Restoration Report/Environmental Assessment
• Little Bay Stewardship Project and Environmental Assessment
• Lower Snake River Fish and Wildlife Compensation Plan Fall Chinook Initiatives Environmental Assessment - November 1996
• Portneuf River Section 1135: Channel Restoration Plan - Project Modification Report and Environmental Assessment, January 1997

Design Memorandums

• Plan for Development of Rocky Mountain Elk Habitat, Dworshak Dam and Reservoir, North Fork Clearwater River, Idaho—Design Memorandum No. 15—4 November 1977
• Lower Snake River Fish and Wildlife Compensation
  • Design Memorandum No. 2A - Wildlife Compensation and Fishing Access - Real Estate - April 1980
  • Design Memorandum No. 6 - Wildlife Compensation and Fishing Access - Site Selection - November 1979
  • Design Memorandum No. 8 - Idaho Fishing Access Site Selection - Revised October 1983
  • Design Memorandum No. 20 - Game Bird Farm Alternative: Habitat Development - April 1986
  • Design Memorandum for Wildlife Habitat on Project Lands - January 1975
    • Supplement No. 1 to Design Memorandum for Habitat Development - 20 April 1979
    • Supplement No. 2 to Design Memorandum for Habitat Development: Hells Gate Habitat Management Unit - October 1987

Master Plans

• Public Use Plan For Development and Management of Dworshak Reservoir, North Fork Clearwater River, Idaho—Design Memorandum No. 10—April 1970
• Lower Granite Master Plan—Design Memorandum No. 28
• Lucky Peak Master Plan—Design Memorandum No. 5—July 1988
• McNary Master Plan—Design Memorandum No. 24—Dec 1995
• Mill Creek Master Plan—Design Memorandum No. 1—Nov. 1995
• Barber Pool Conservation Area Master Plan and Inventory and Analysis
• Fort Walla Walla Master Plan

Other Reports

• 1992 Reservoir Drawdown Test, Lower Granite and Little Goose Dams - December 1993
  • Appendix A - Hydraulic Evaluation
  • Appendix B - Wave Erosion Analysis for Embankments
  • Appendix C - Settlement Gages
  • Appendix D - Piezometer Study
  • Appendix E - Structural Instrumentation
  • Appendix F - Existing Structures and Facilities Surveillance
  • Appendix G - Impact on Power Plant Operation
  • Appendix H - Lewiston Levee Pumping Plants
  • Appendix I - Road and Railroad Embankments
  • Appendix J - Emergency Equipment and Materials
  • Appendix K - Lewiston Levee Waste Area
  • Appendix L - Groundwater Investigations
  • Appendix M - Results of Hydrology Studies
  • Appendix N - Dissolved Gas Data
  • Appendix O - Water Quality and Sediment Quality Data
  • Appendix P - Evaluation of the 1992 Drawdown in Lower Granite and Little Goose Reservoirs
  • Appendix Q - Impacts of the Snake River Drawdown Experiment on Fisheries Resources in Little Goose and Lower Granite Reservoirs
  • Appendix R - Impact of Experimental Dewatering of Lower Granite and Little Goose Reservoirs on Benthic Invertebrate and Macrophytes
  • Appendix S - Lower Snake Reservoir Drawdown Test Plan
  • Appendix T - Evaluation of 100 Percent Spill on Fish Passage Conditions at Lower Granite Dam
  • Appendix U - Reservoir Drawdown Test Design Team Meeting Minutes
  • Appendix V - Snake and Columbia Rivers Sediment Sampling Project
  • Appendix W - Lower Granite and Little Goose Project Operation Data
  • Appendix X - Daily Environmental Reports
• Camas Creek Watershed Assessment - September 2003
• Evaluation of Wildlife Habitat Developed on Government Project Lands Along the Snake River in Washington - 31 May 1980
• Final Report for the HSI Validation Study for the Lower Snake River Fish and Wildlife Compensation Plan - October 1995
• A History of the Walla Walla District--1948 to 1970
• Improvement of Rivers and Harbors - December 16, 1975
• Interim Report - Supplement to Special Report - Lower Snake River Fish and Wildlife Compensation Plan, Lower Snake River, Washington and Idaho, June 1975 - April 1976
• Inventory of Riparian Habitats and Associated Wildlife Along Columbia and Snake Rivers - 1976
  • Volume I - Summary
  • Volume IIA - Lower Columbia River
  • Volume IIB - Lower Columbia River
  • Volume IIIA - Snake River - McNary Reservoir
  • Volume IIIB - Snake River - McNary Reservoir
  • Volume IVA - Mid-Columbia River
  • Volume IVB - Mid-Columbia River
• Jackson Hole, Wyoming Flood Protection Project Letter Report - January 1988
• Jordan Creek Reconnaissance Study - June 1987
• Little Weiser River Project Modification Report Section 1135(b), Water Resources Development Act of 1986, As Amended - January 1997
• Lower Boise River and Tributaries, Idaho, Reconnaissance Study - May 1995
• Lower Granite Lock and Dam, Snake River, Washington and Idaho - Sedimentation Feasibility Study: Phase I - Reconnaissance Level Analysis - August 1986
• Lower Granite Sedimentation Study - Draft Preliminary Evaluation and Progress Report - December 1992
• Lower Snake River Fish and Wildlife Compensation Final Environmental Impact Statement - September 1976
• Lower Snake River Fish and Wildlife Compensation Plan Habitat Evaluation Procedure, 2001-2002 Terrestrial Analysis, Southeast Washington - January 2004
• Lower Snake River Habitat Coverage Analysis, 1987 - 1997 - October 1997
• Lower Snake River Juvenile Salmon Migration Feasibility Study - Sediment Sampling Particle Size Sampling Task - July 1997
• Mill Creek Diversion Dam, Special Report on Fish Passage - October 2004
• Planning Aid Report for Highway 12 Widening Project - March 2000
• Reconnaissance Report, Mud Lake, Idaho - October 1989
• Review of Flood Control Columbia River Basin, Columbia River and Tributaries Study, CRT-63 - Final Report, June 1991
• Special Report for Congress, Lower Snake River Fish and Wildlife Compensation Plan - March 1983
• Special Report, Lower Snake River Fish and Wildlife Compensation Plan, Lower Snake River, Washington and Oregon - June 1975
• Special Report: Lower Snake River Fish and Wildlife Compensation Plan - Wildlife Habitat Compensation Evaluation for the Lower Snake River Project
• Vegetation Inhabiting the Lower Granite Reservoir Basin - 1973
• Walla Walla River Watershed Study Reconnaissance Report
• Water Quality Plan for Total Dissolved Gas and Water Temperature in the Mainstem Columbia and Snake Rivers - April 21, 2003