Final Feasibility Report and Environmental Impact Statement

Welcome to the U.S. Army Corps of Engineers - Lower Snake River Juvenile Salmon Migration Feasibility Study emblem with stylized gold castle and map showing the US and Walla Walla District Boundaries

Lower Snake River Juvenile Salmon Migration Feasibility Report/Environmental Impact Statement

Final Feasibility Report and Environmental Impact Statement

The following documents are final products of the Lower Snake River Juvenile Salmon Migration Feasibility Study. Viewing the pdf version of these documents requires the use of Adobe Acrobat Reader, which can be downloaded at no cost from www.adobe.com. The documents may be viewed from your computer screen, downloaded in their entirety, or downloaded by sections.

Order a copy of the study:

Final Feasibility Report and Environmental Impact Statement

Summary Document (pdf format)

Feasibility Report/Environmental Impact Statement - Part I

Front Matter (Abstract, Table of Contents, Acronyms, and Abbreviations) (pdf format or text format)

Executive Summary (pdf format or text format)

Section 1 - Introduction (pdf format or text format)

Section 2 - Affected Projects and Programs (pdf format or text format)

Section 3 - Plan Formulation (pdf format or text format)

Section 4 - Affected Environment (pdf format or text format)

Feasibility Report/Environmental Impact Statement - Part II

Section 5 - Environmental Effects of Alternatives (pdf format or text format)

Section 6 - Plan Selection and Implementation (pdf format or text format)

Section 7 - Regional Coordination and Public Outreach (pdf format or text format)

Section 8 - Compliance With Applicable Federal Environmental Statutes and Regulations (pdf format or text format)

Section 9 - Literature Cited (pdf format or text format)

Section 10 - Glossary (pdf format or text format)

Section 11 - List of Preparers (pdf format or text format)

Section 12 - Distribution List (pdf format or text format)

Section 13 - Index (pdf format or text format)

Appendix A - Anadromous Fish Modeling (pdf format or text format)

Appendix B - Resident Fish (pdf format or text format)

Appendix C - Water Quality (pdf format or text format)

Appendix D - Natural River Drawdown Engineering (pdf format or text format)

Annex A - Turbine Passage Modification Plan (pdf format or text format)

Annex B - Dam Embankment Excavation Plan (pdf format or text format)

Annex C - Temporary Fish Passage Plan (pdf format or text format)

Annex D - River Channelization Plan (pdf format or text format)

Annex E - Bridge Pier Protection Plan (pdf format or text format)

Annex F - Railroad and Highway Embankment Protection Plan (pdf format or text format)

Annex G - Drainage Structures Protection Plan (pdf format or text format)

Annex H - Railroad and Roadway Damage Repair Plan (pdf format or text format)

Annex I - Lyons Ferry Hatchery Modification Plan (pdf format or text format)

Annex J - Habitat Management Units Modification Plan (pdf format or text format)

Annex K - Reservoir Revegetation Plan (pdf format or text format)

Annex L - Cattle Watering Facilities Management Plan (pdf format or text format)

Annex M - Recreation Access Modification Plan (pdf format or text format)

Annex N - Cultural Resources Protection Plan (pdf format or text format)

Annex O - Irrigation Systems Modification Plan (pdf format or text format)

Annex P - Water Well Modification Plan (pdf format or text format)

Annex Q - Potlatch Corporation Water Intake Modification Plan (pdf format or text format)

Annex R - Other River Structures Modification Plan (pdf format or text format)

Annex S - Potlatch Corporation Effluent Diffuser Modification Plan (pdf format or text format)

Annex T - PG&E Gas Transmission Main Crossings Modification Plan (pdf format or text format)

Annex U - Hydropower Facilities Decommissioning Plan (pdf format or text format)

Annex V - Concrete Structures Removal Plan (pdf format or text format)

Annex W - Implementation Schedule (pdf format or text format)

Annex X - Comprehensive Baseline Cost Estimate (pdf format or text format)

Appendix E - Existing Systems and Major Systems Improvements Engineering (pdf format or text format)

Appendix F - Hydrology/Hydraulics and Sedimentation (pdf format or text format)

Appendix G - Hydroregulations (pdf format or text format)

Appendix H - Fluvial Geomorphology (pdf format or text format)

Appendix I - Economics (pdf format or text format)

Appendix J - Plan Formulation (pdf format or text format)

Appendix K - Real Estate (pdf format or text format)

Appendix L - Lower Snake River Mitigation History and Status (pdf format or text format)

Appendix M - Fish and Wildlife Coordination Act Report (pdf format or text format)

Appendix N - Cultural Resources (pdf format or text format)

Appendix O - Public Outreach Program (pdf format or text format)

Appendix P - Air Quality (pdf format or text format)

Appendix Q - Tribal Consultation and Coordination (pdf format or text format)

Appendix R - Historical Perspectives (pdf format or text format)

Appendix S - Snake River Maps (pdf format or text format)

NOTE: If you encounter difficulties viewing any of the following drawing files,

reload Adobe Acrobat Reader.

Annex A - 1934 Survey Drawings (pdf format or text format)

Drawings 1-11 (pdf format)

Drawings 12-23 (pdf format)

Drawings 24-35 (pdf format)

Drawings 36-47 (pdf format)

Drawings 48-59 (pdf format)

Drawings 60-71 (pdf format)

Drawings 72-83 (pdf format)

Drawings 84 -95 (pdf format)

Drawings 96-107 (pdf format)

Drawings 108-119 (pdf format)

Drawings 120-131 (pdf format)

Annex B - Pre- and Post-Dam Comparison Displays (pdf format or text format)

Appendix T - Clean Water Act, Section 404(b)(1) Evaluation (pdf format or text format)

Appendix U - Response to Public Comments (pdf format or text format)

Return to the Feasibility Study Page for Technical Documents and Other Study Information

Return to the Walla Walla District Home Page