Lewis River
Project Overview
PacifiCorp’s 510 megawatt (MW) capacity Lewis River hydroelectric facilities are located in rural southwestern Washington. The first dam site, Merwin, is approximately 10 miles east of Woodland, about 40 miles northeast of Portland, Ore. Constructed between 1931 and 1958, the Lewis River projects are located in a scenic area near Mt. St. Helens in the Cascade mountain range. View fact sheet (PDF).
Click on the construction link above for information on closures.
Springing from Adams Glacier on Mt. Adams, the North Fork of the Lewis River flows past the southern flank of Mt. St. Helens on a 90-mile path before emptying into the Columbia River near Woodland, Wash. Much of the drainage basin of the North Fork of the Lewis River lies within the Gifford Pinchot National Forest and the Mt. St. Helens National Volcanic Monument. Consequently, several state and federal resource agencies are involved in resource management in the project's vicinity.
The sequence of the four Lewis River projects upstream of the confluence of the Lewis and Columbia rivers is: Merwin, Yale, Swift No. 2, and Swift No.1. These four projects are licensed separately by FERC. Merwin (FERC No. 935), Yale (FERC No. 2071), and Swift No. 1 (FERC No. 2111) are owned and operated by PacifiCorp. Swift No. 2 (FERC NO. 2213) is owned by Cowlitz County PUD No. 1 and is operated in coordination with the other projects by PacifiCorp.
Placed in service in 1931, the Merwin project has a generating capacity of 136 mw. The dam associated with this plant is a 313-foot high concrete arch type. It creates Merwin Lake, a 4,040-acre impoundment popular with a wide variety of recreationists.
The Yale project was completed in 1953. It features a 3,780-acre reservoir (locally known as Yale Lake, it also is a popular recreation site) and a main earthfill embankment dam that is 323 feet high. The two turbines in the Yale powerhouse were recently upgraded to a combined rated capacity of 134 mw.
At 240 mw, Swift No. 1 is PacifiCorp’s largest hydroelectric facility. When initially built in 1958, the 512-foot Swift Dam was one of the highest earthfill dams in the world. The Swift Reservoir is 4,600 acres and similarly provides a variety of fishing, camping, swimming and other recreation. The discharge of Swift No. 1 enters a canal that transports the water through the 70 mw Swift No. 2 project owned by Cowlitz County PUD No. 1 before it is returned to the upper end of Yale Reservoir.
PacifiCorp operates several recreational facilities associated with the Lewis River projects. These facilities include 318 camping sites, 268 picnic sites, several boat ramps, swimming beaches, fishing access, and day use areas.
Settlement Agreement Documents
The following documents comprise the Final Settlement Agreement for the Lewis River Relicensing, dated November 30, 2004.
Relicensing Documents
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Lewis River Hydroelectric Project NMFS Biological Opinion - August 27, 2007
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Lewis River Hydroelectric Project USFWS Biological Opinion - September 15, 2006
- Lewis River Hydoelectric Project - 401 Water Quality Certifications
- Lewis River Modified Fishway Prescriptions
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Modified Fishway Prescriptions for Applications for Major New License for the Lewis River Projects: Merwin Project No. P-935, Yale Project No. P-2071, Swift No. 1 Project No. P-2111 and Swift No. 2 Project No. P-2213. February 2006.
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Lewis River Hydroelectric Project - Biological Evaluation
Biological Evaluation of USFWS Listed, Proposed and Candidate Species. January 2005
- Application for New License for the Merwin Hydroelectric Project - Volume 1
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Volume 1 of the Application for New License for the Merwin Hydroelectric Project: Initial Statement and Exhibits
Exhibit A: Description of Project
Exhibit B: Project Operation and Resource Utilization
Exhibit C: Construction History
Exhibit D: Statement of Costs and Financing
Exhibit E: Environmental Report
Exhibit F: General Design Drawings
Exhibit H: Applicant's Qualifications to Operate the Project - Application for New License for the Merwin Hydroelectric Project - Volume 2
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Volume 2 of the Application for New License for the Merwin Hydroelectric Project: PDEA
Section 1: Purpose of Action and Need for Power
Section 2: Proposed Action and Alternatives
Section 3: Environmental Consequences
Section 4: Developmental Analysis
Section 5: Comprehensive Development Analysis - Application for New License for the Merwin Hydroelectric Project - Volume 3
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Volume 3 of the Application for New License for the Merwin Hydroelectric Project: Appendices
Appendix A: Historic Properties Management Plan
Appendix B: Recreation Resource Management Plan
Appendix C: Consultation RecordAppendix D: Final Technical Reports
List of Studies and Acronyms and AbbreviationsAquatics Resources
AQU 1
Report on Life History, Habitat Requirements, and Distribution of Aquatic Analysis Species
AQU 1 Report
Report on Life History, Habitat Requirements, and Distribution of Aquatic Analysis Species
AQU 1 Appendix 1
Fish distribution maps
AQU 1 Appendix 2
WRIA 27 Fish distribution and barriersAQU 2
Swift Bypass Reach Instream Flow Study
AQU 2 Report
Swift Bypass Reach Instream Flow Study
AQU 2 Appendix 1
Habitat suitability criteria for Swift bypass reach and meeting participants
AQU 2 Appendix 2
Hydraulic simulations
AQU 2 Appendix 3
WUA vs. flow for anadromous species in the Swift bypass reachAQU 3
Report on Merwin Streamflow and Ramping Rate
AQU 3 Report
Report on Merwin Streamflow and Ramping Rate
AQU 3 Appendix 1
Article 49 of the Merwin License
AQU 3 Appendix 2
Merwin flow calculation methodology
AQU 3 Appendix 3
Species periodicity in relation to flows downstream of Merwin Dam
AQU 3 Appendix 4
Map of the Lewis River downstream of Merwin Dam showing gravel bars and ramping rate sites
AQU 3 Appendix 5
Photographs of the Lewis River ramping rate sitesAQU 4
Assessment of Potential Anadromous Fish Habitat Upstream of Merwin Dam
AQU 4 Report
Assessment of Potential Anadromous Fish Habitat Upstream of Merwin Dam
AQU 4 Appendix 1
Habitat data summary sheets and photographs of reaches potentially accessible to anadromous fish above Merwin DamAQU 5
Engineering Feasibility of Fish Passage Facilities
AQU 5 Report
Engineering Feasibility of Fish Passage Facilities
AQU 5 Appendix 1
Engineering Feasibility Study for Fish Passage Facilities - Phase 2
AQU 6
Evaluation of Fish Entrainment at the Swift No. 1 Hydroelectric FacilityAQU 7
Creel Survey
AQU 7 Report
Creel Survey
AQU 7 Appendix 1
Pathology results for fish examined from Swift Reservoir in 2000AQU 8
Report on Fish Management and Hatchery Operations of the Lewis RiverReport on Fish Management and Hatchery Operations of the Lewis River
AQU 8 Appendix 1
WDFW joint response to "key" questions
AQU 8 Appendix 2
Hatchery fish release locations (1952 through 1998)
AQU 8 Appendix 3
Hatchery Fish Releases Above Merwin Dam (1995-2000)
AQU 9
Speelyai Creek Connectivity and Speelyai Hatchery Protection Study
AQU 10
Evaluation of Hatchery Origin Coho Salmon Behavior, Productivity, and Habitat Selection in the Upper Lewis River WatershedAQU 11
Quantification of In-river Residency and Optimization of Release Strategies for Hatchery Coho Salmon Smolts in the Lower Lewis River
AQU 11A
Quantification of In-river Residency and Optimization of Release Strategies for Hatchery Coho Salmon Smolts in the Lower Lewis River (2001)
AQU 11B
Quantification of In-river Residency and Optimization of Release Strategies for Hatchery Coho Salmon Smolts in the Lower Lewis River (2002)AQU 12
Bull Trout Habitat Enhancement in Rain and Ole Creeks Study
AQU 12 Appendix 1
Ole Creek instream flow study results
AQU 13
Evaluation of Anadromous Salmon Behavior and Habitat Selection in the Upper Lewis River Watershed, Phase 2AQU 14A
Migratory Behavior of Radio-tagged Juvenile Coho Salmon through Swift Reservoir, 2001
AQU 14A
Migratory Behavior of Radio-tagged Juvenile Coho Salmon through Swift Reservoir, 2001
AQU 14A Appendix 1
Location of Radio-tagged Juvenile Coho Salmon in Swift ReservoirAQU 14B
Migratory Behavior of Radio-tagged Juvenile Chinook Salmon through Swift Reservoir, 2002
AQU 14B
Migratory Behavior of Radio-tagged Juvenile Chinook Salmon through Swift Reservoir, 2002
AQU 14B Appendix 1
Location of Radio-tagged Juvenile Chinook Salmon in Swift Reservoir
AQU 15
Genetic Evaluation of Native Trout and Steelhead Stocks in the Upper Lewis River Watershed
AQU 16
Summary of Information Available to Assess Potential Aquatic Species Interactions in the Lewis River Basin
AQU 17
Behavior of Salmonid Smolts at Swift Dam Using 3-Dimensional Tracking with Acoustic TagsAQU 18
AQU 18
Lewis River Fish Planning Document
AQU 18 Appendix A
Response of Participating Parties to Fourteen Questions Regarding Development of a Fishery Management Plan for the Lewis River Basin
AQU 18 Appendix B
Salmon Popcycle Model Structure Instruction for Use and Assumptions
AQU 18 Appendix C
Sensitivity Analysis of Popcycle Parameter Effects on Predicted Population Size
AQU 18 Appendix D
Lewis River Hatchery Review
AQU 18 Appendix E
Upper Lewis EDT Analysis
AQU 18 Appendix F
Comments
AQU 18 Appendix G
A Conceptual Foundation for the Management of the Lewis River Salmonid Populations
AQU 19
Evaluation of Three Proposed Management Scenarios to Enhance Three Potential Bull Trout Nursery Habitats, Accessible to Lake Merwin and Yale Lake, Lewis RiverCultural
CUL 1
Traditional Cultural Properties Inventory and Assessment
CUL 2
Archaeological Resources Inventory and Assessment
CUL 3
Historical Hydroelectric Structures Inventory and Assessment
CUL 4
Historical Non-hydroelectric Structures Inventory and Assessment
CUL 5
Assessment of Impacts of Project Alternatives on National Register Eligible Cultural Resources
CUL 6
Preparation of Cultural Resource Management Plan (CRMP)Recreation
REC 1
Recreation Supply Analysis
REC 1 Report
Recreation Supply Analysis
REC 1 Appendix A
Recreation Supply Analysis (EDAW Report)
REC 1 Appendix B
Site Maps of Yale Lake Recreation Sites and Facilities
REC 1 Appendix C
Site Maps of Lake Merwin Recreation Sites and Facilities
REC 1 Appendix D
Site Maps of Swift Reservoir Recreation Sites and Facilities
REC 1 Appendix E-1
Lake Merwin Shoreline Dispersed Site Inventory and Condition Forms
REC 1 Appendix E-2
Yale Lake Shoreline Dispersed Site Inventory and Condition Forms
REC 1 Appendix E-3
Swift Reservoir Shoreline Dispersed Site Inventory and Condition FormsREC 2
Recreation Demand Analysis
REC 2 Report
Recreation Demand Analysis
REC 2 Appendix A
Lake Merwin and Swift Reservoir Survey Results
REC 2 Appendix B
Yale Lake Survey Results
REC 2 Appendix C
Oregon Resident Component of Recreation Visitor Survey Results
REC 2 Appendix D
Dispersed/Displaced Recreation Visitor Survey Results
REC 2 Appendix E
Fall Season Recreation Visitor Survey Results
REC 2 Appendix F
Area Resident Survey Results
REC 2 Appendix G
River-Related Recreation Survey Results
REC 2 Appendix H
Private Non-Project Recreation Survey Results
REC 2 Appendix I
Angler Creel Survey
REC 3
Recreation Surveys
REC 4
River-Related Recreation SurveysREC 5
Recreation Capacity and Suitability Analysis
REC 5 Report
Recreation Capacity and Suitability Analysis
REC 5 Appendix 1
Recreation Capacity and Suitability Analysis (EDAW Report)
REC 5 Appendix 2
Trail Feasibility Study (EDAW Report)REC 6
Recreation Needs Analysis
REC 6 Report
Recreation Needs Analysis
REC 6 Appendix 1
Recreation Needs Analysis (EDAW Report)
REC 7
Draft Recreation Resource Management PlanSocioeconomics
SOC 1 Report
Socioeconomics Resource Study
SOC 1 Appendix 1
Text of RCW 54.28.050
SOC 1 Appendix 2
Descriptive text of money generation modelTerrestrial
TER 1
Vegetation Cover Type MappingTER 2
TER 2 Report
Habitat Evaluation Procedure
TER 2 Appendix 1
HEP Team meeting notes
TER 2 Appendix 2
Lewis River HEP Models
TER 2 Appendix 3
Datasheets
TER 2 Appendix 4
|Snag and shrub statistics
TER 2 Appendix 5
Successional rules
TER 2 Appendix 6
AAHU calculations by habitat and segmentTER 3
Analysis Species Assessment
TER 3 Report
Analysis Species Assessment
TER 3 Appendix 1
Species/habitat associationsTER 4
Botanical Surveys
TER 4 Report
Botanical surveys
TER 4 Appendix 1
TES plant species
TER 5
Wetland Information Synthesis
TER 6
Reservoir Fluctuation Study
TER 7
Tributary Stream StudyTER 8
Forest Harvest Practices Assessment
TER 8 Report
Forest Harvest Practices Assessment
TER 8 Appendix 1
Glossary of terms
TER 9
Riparian Habitat Information Synthesis
Water Quality
WAQ 1
Water Quality Monitoring and Assessment Study
WAQ 1 Report
Water Quality Monitoring and Assessment Study
WAQ 1 Appendix 1
Daily summary statistics of hourly temperature measurements
WAQ 1 Appendix 2
Plots of minimum and maximum temperatures
WAQ 1 Appendix 3
Percent exceedence analyses for hourly temperature measurements
WAQ 1 Appendix 4
Percent exceedence analyses for diel temperature fluctuations
WAQ 1 Appendix 5
Results of laboratory analyses for Lewis River monitoring sites
WAQ 1 Appendix 6
Results of in situ measurements at Lewis River monitoring sites, May 1999 - April 2000
WAQ 1 Appendix 7
Plots of vertical profile in situ data for Swift and Merwin reservoirs, May 1999 - April 2000WAQ 2
Total Dissolved Gas Study
WAQ 2 Report
Total Dissoved Gas Study
WAQ 2 Appendix
Daily minimum, maximum and standard deviation of temperature and total dissolved gas data
WAQ 2 Appendix 2
Weekly total dissolved gas measurements
WAQ 2 Appendix 3
Vertical profiles of temperature and dissolved oxygen
WAQ 3
Polycyclic Aromatic Hydrocarbons (PAHS) in Yale Reservoir
WAQ 4
Total Dissolved Gas (TDG) Monitoring - 2001: Response of Dissolved Gas Saturation Downstream of the Swift No. 1 Project to Reduced Turbine Air InflowWatershed Proccess
Physiographic Setting and Stream Channel ClassificationWTS 2Streamflow Study
WTS 3Stream Channel Morphology and Aquatic Habitat Study
Stream Channel Morphology and Aquatic Habitat StudyAquatic habitat unit dataSubstrate samplesSpawning gravel samplesHydraulic modeling for Swift bypass reach and Speelyai CreekWTS 4Swift Bypass Reach Synthesis Report
Indicators of hydrologic alterationConsulting Engineer's Report on Providing Flow to the Lewis River Bypass Reach from the Swift No. 2 CanalComments of Cowlitz Tribe & WDFW on WTS 4 - Application for New License for the Swift No. 1 Hydroelectric Project - Volume 1
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Volume 1 of the Application for New License for the Swift No. 1 Hydroelectric Project: Initial Statement and Exhibits
Exhibit A: Description of Project
Exhibit B: Project Operation and Resource Utilization
Exhibit C: Construction History
Exhibit D: Statement of Costs and Financing
Exhibit E: Environmental Report
Exhibit F: General Design Drawings
Exhibit H: Applicant's Qualifications to Operate the Project - Application for New License for the Swift No. 1 Hydroelectric Project - Volume 2
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Volume 2 of the Application for New License for the Swift No. 1 Hydroelectric Project: PDEA
Section 1: Purpose of Action and Need for Power
Section 2: Proposed Action and Alternatives
Section 3: Environmental Consequences
Section 4: Developmental Analysis
Section 5: Comprehensive Development Analysis - Application for New License for the Swift No. 1 Hydroelectric Project - Volume 3
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Volume 3 of the Application for New License for the Swift No. 1 Hydroelectric Project: Appendices
Appendix A: Historic Properties Management Plan
Appendix B: Recreation Resource Management Plan
Appendix C: Consultation RecordAppendix D: Final Technical Reports (see above in Application for New License for the Merwin Hydroelectric Project - Volume 3)
Appendix E: Flow Duration Curves
Appendix F: Generation Capability Assessment for the Swift No. 1 Hydroelectric Project
Appendix G: Swift Dam Construction - Yale License Application
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Yale License Application Executive Summary and Initial Statement
Yale License Application Exhibit A: Description of Project
Yale License Application Exhibit B: Project Operations and Resource Utilization
Yale License Application Exhibit C: Construction History
Yale License Application Exhibit D: Statement of Costs and Financing Yale License Application Exhibit E: Environmental Report
Yale License Application Exhibit E: Table of Contents, Intro, General Description of the Locale
Yale License Application Exhibit E: Water Quality
Yale License Application Exhibit E: Aquatic Resources
Yale License Application Exhibit E: Terrestrial Resources
Yale License Application Exhibit E: Cultural Resources
Yale License Application Exhibit E: Recreation Resources
Yale License Application Exhibit E: Land Management and Use
Yale License Application Exhibit E: Aesthetics/Visual Resources
Yale License Application Exhibit E: Literature Cited
Yale License Application Exhibit E: Appendices
Yale License Application Exhibit F: General Design Drawings
Yale License Application Exhibit G: Maps of Projects - Yale Relicensing Final Technical Reports
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Comments on the BPA I-5 Corridor Reinforcement Project November 2012 Draft Environmental Impact Statement - March 20, 2013
Letter addressed to BPA -
Comments on the BPA I-5 Corridor Reinforcement Project November 2012 Draft Environmental Impact Statement - March 20, 2013
Letter addressed to U.S. Army Corps of Engineers
Relicensing Reports
Water Quality
- Water Quality Monitoring and Assessment Study & Appendices
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Water Quality Monitoring and Assessment Study
Appendix 1: Daily summary statistics of hourly temperature measurements
Appendix 2: Plots of minimum and maximum temperatures
Appendix 3: Percent exceedence analyses for hourly temperature measurements
Appendix 4: Percent exceedence analyses for diel temperature fluctuations
Appendix 5: Results of laboratory analyses for Lewis River monitoring sites
Appendix 6: Results of in situ measurements at Lewis River monitoring sites, May 1999 - April 2000 - Total Dissoved Gas Study & Appendices
Aquatics
- AQU 1
- AQU 2
- AQU 3
- AQU 4
- AQU 5
- AQU 6
- AQU 7
- AQU 8
- AQU 9
- AQU 10
- AQU 11
- AQU 12
- AQU 13
- AQU 14A
- AQU 14B
- AQU 15
- AQU 16
- AQU 17
- AQU 18
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Lewis River Fish Planning Document
Appendix B: Salmon Popcycle Model Structure Instruction for Use and Assumptions
Appendix C: Sensitivity Analysis of Popcycle Parameter Effects on Predicted Population Size
Appendix D: Lewis River Hatchery Review
Appendix E: Upper Lewis EDT Analysis
Appendix G: A Conceptual Foundation for the Management of the Lewis River Salmonid Populations - AQU 19
- TER 1
- TER 2
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TER 2 Report
Habitat Evaluation Procedure
TER 2 Appendix 1
HEP Team meeting notes
TER 2 Appendix 2
Lewis River HEP Models
TER 2 Appendix 3
Datasheets
TER 2 Appendix 4
|Snag and shrub statistics
TER 2 Appendix 5
Successional rules
TER 2 Appendix 6
AAHU calculations by habitat and segment - TER 3
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TER 3 Report
Analysis Species Assessment
TER 3 Appendix 1
Species/habitat associations - TER 4
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TER 4 Report
Botanical surveys
TER 4 Appendix 1
TES plant species - TER 5
- TER 6
- TER 7
- TER 8
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TER 8 Report
Forest Harvest Practices Assessment
TER 8 Appendix 1
Glossary of terms - TER 9
Cultural
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CUL 1
Traditional Cultural Properties Inventory and Assessment -
CUL 2
Archaeological Resources Inventory and Assessment -
CUL 3
Historical Hydroelectric Structures Inventory and Assessment -
CUL 4
Historical Non-hydroelectric Structures Inventory and Assessment -
CUL 5
Assessment of Impacts of Project Alternatives on National Register Eligible Cultural Resources -
CUL 6
Preparation of Cultural Resource Management Plan (CRMP) -
CUL 7
Historic Properties Management Plan (HPMP) - March 2004 -
CUL 8
Historic Properties Management Plan (HPMP) Interim Revisions, January 2009
Recreation
- REC 1
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REC 1 Report
Recreation Supply Analysis - REC 2
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REC 2 Report
Recreation Demand Analysis
REC 2 Appendix 1
Recreation Demand Analysis (EDAW Report) - REC 3
- REC 4
- REC 5
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REC 5 Report
Recreation Capacity and Suitability Analysis
REC 5 Appendix 1
Recreation Capacity and Suitability Analysis (EDAW Report)
REC 5 Appendix 2
Trail Feasibility Study (EDAW Report) - REC 6
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REC 6 Report
Recreation Needs Analysis
REC 6 Appendix 1
Recreation Needs Analysis (EDAW Report) - REC 7
Land Use
Aesthetic/Visual Resources
Socioeconomics
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SOC 1 Report
Socioeconomics Resource Study -
SOC 1 Appendix 1
Text of RCW 54.28.050 -
SOC 1 Appendix 2
Descriptive text of money generation model
Flood Management
License Implementation
Project License
FERC order issuing new license regarding Lewis River Merwin Project P-935, Yale Project P-2071, Swift No. 1 Project P-2111 and Swift No. 2 Project P-2213, dated June 26, 2008.
Aquatics Coordination Committee (ACC)
- Aquatics Coordination Committee - 2013
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2013 Meeting Notes & Agendas
2013 Aquatic Fund Annual Report2012/2013 Aquatic Fund Full Proposals
USDA Forest Service - Lewis River Side Channel near Little Creek (PDF)
Lewis River Side Channel near Little Creek PresentationUSDA Forest Service - Muddy River Tributary near Hoo Hoo Bridge (PDF)
Muddy River Tributary near Hoo Hoo Bridge PresentationUSDA Forest Service - Little Creek Fish Habitat Restoration (PDF)
Little Creek Fish Habitat Restoration PresentationUSDA Forest Service - Survey of Bull Trout Stream Habitat (PDF)
Survey of Bull Trout Stream Habitat PresentationLCFEG - Cedar Creek Reach 1A Restoration (PDF)
Cedar Creek Reach 1A Restoration Presentation2012/2013 Aquatic Fund Pre-Proposals
USDA Forest Service - Lewis River Side Channel near Little Creek (PDF)
USDA Forest Service - Muddy River Tributary near Hoo Hoo Bridge (PDF)
USDA Forest Service - Little Creek Fish Habitat Restoration (PDF)
Little Creek Photos, courtesy of USDA Forest Service and PacifiCorpUSDA Forest Service - Survey of Bull Trout Stream Habitat (PDF)
- Aquatics Coordination Committee - 2012
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2012 Meeting Agendas
2012 Final Meeting Notes
Aquatic Fund Annual Report
2012 Aquatic Fund Annual Report2012 Aquatic Fund Proposals - Power Point Presentations
Gifford Pinchot Task Force - Rush Creek Instream Pilot Project Habitat Restoration (PDF)
USDA Forest Service - Clearwater Creek Instream Habitat Restoration (PDF)
USDA Forest Service - Lewis River Side Channel III Instream Habitat Restoration (PDF)
2012 Aquatic Fund Full Proposals
Gifford Pinchot Task Force - Rush Creek Insteam Pilot Project Habitat Restoration (PDF)
USDA Forest Service - Clearwater Creek Instream Habitat Restoration (PDF)
USDA Forest Service - Lewis River Side Channel III Instream Habitat Restoration (PDF)
Washington Department of Fish & Wildlife - Upper Lewis River Spawning Grounds and Habitat Restoration Inventory (PDF)
2012 Aquatic Fund Pre-Proposals
Gifford Pinchot Task Force - Rush Creek Side Channel Restoration Pilot Project (PDF)
USDA Forest Service - Clearwater Creek Instream Habitat Restoration (PDF)
USDA Forest Service - Lewis River Side Channel III Habitat Restoration (PDF)
USDA Forest Service - Muddy River Floodplain Culvert Cleanup (PDF)
Washington Department of Fish & Wildlife - Upper Lewis River Bull Trout Spawning Habitat Inventory (PDF)
ACC Shared Documents
Bull Trout Investigations Presentation (Jim Byrne-WDFW)
Bull Trout Monitoring Results Presentation (Jeremiah Doyle-PacifiCorp) - Aquatics Coordination Committee - 2011
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ACC Meeting Agendas
ACC Final Meeting Notes
2011 Aquatic Fund Full Proposals
Cowlitz Indian Tribe - Eagle Island Habitat Enhancement (PDF)
Cowlitz Indian Tribe - Eagle Island Habitat Enhancement Site B Map (PDF)
Cowlitz Indian Tribe - Eagle Island Habitat Enhancement Site C Map (PDF)
USDA Forest Service - Lewis River Side Channel Near Muddy River Instream Habitat Restoration (PDF)
USDA Forest Service - Muddy River Mainstem Restoration (PDF)
USDA Forest Service - Muddy River Side Channel Restoration (PDF)
2011 Aquatic Fund Pre-Proposals
Cowlitz Indian Tribe - Eagle Island Habitat Enhancement - Sites B and C (PDF)
Lower Columbia Fish Enhancement Group - NF Lewis RM 13.5 Side-Channel Habitat Enhancement (PDF)
USDA Forest Service - 2011 Pine Creek Nutrient Enhancement by Snowcats and Snowmobiles (PDF)
USDA Forest Service - Muddy River Mainstem Channel Restoration (PDF)
USDA Forest Service - Rush Creek Side Channel Restoration (PDF)
USDA Forest Service - Muddy River Side Channel Restoration (PDF)
USDA Forest Service - Lewis River Side Channel Near Muddy River Instream Habitat Restoration (PDF)
Aquatic Fund 2011 Annual Report
Lewis River Aquatic Fund 2011 Annual ReportACC Shared Documents
Lewis River Stranding Study Report - June 2011
Lewis River Acclimation Pond Design Submittal - June 2011Lewis River Aquatic Fund Project Closeout Report Documents
Eagle Island Site A Habitat Restoration Project Closeout Report
Eagle Island Site A Stamped Drawings (Attachment)
Clear Creek Instream Habitat Restoration Project Closeout Report
Dispersed Campsites and Road Decommissioning Project Closeout ReportACC Final Documents
- Aquatics Coordination Committee - 2010
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ACC Meeting Agendas
1-14-10 Meeting AgendaACC Final Meeting Notes
ACC Shared Documents
Lower Lewis River Release Pond 90% Non-site Specific Design, September 2010ACC Final Documents
Lewis River Hatchery & Supplemenation Program 2009 Annual Report, June 2010
Lewis River Aquatic Monitoring and Evaluation Plan - June 2010
Lewis River 2010 Habitat Preparation Plan, May 2010
Lewis River (Revised) Bull Trout Annual Operations Plan, May 2010
Lewis River 2009 Annual Bull Trout Monitoring Report, May 2010
Lewis River Aquatic Fund Projects Annual Report - April 2010 - Aquatics Coordination Committee - 2009
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ACC Meeting Agendas
ACC Final Meeting NotesACC Shared Documents
Lewis River Swift Downstream Collection Preliminary Engineering 90% Design Report - June 2009
This document is password protected
Lewis River Merwin Upstream Collection & Transport FacilityEngineering 90% Design Report - June 2009
This document is password protected.ACC Final Documents - Aquatics Coordination Committee - 2008
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ACC Meeting Agendas
1-30-08 Engineering Subgroup Meeting Agenda
3-14-08 Engineering Subgroup Meeting Agenda
4-8-08 Engineering Subgroup Meeting Agenda
4-28-08 Engineering Subgroup Meeting Agenda
6-4-08 Engineering Subgroup Meeting Agenda
7-16-08 Engineering Subgroup Meeting AgendaACC Final Meeting Notes
ACC Final Documents
ACC Shared Documents
- Aquatics Coordination Committee - 2007
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ACC Meeting Agendas
ACC Final Meeting NotesACC Shared DocumentsACC Final Documents
Merwin and Swift Creek Reservoir Tributary Sterams Bull Trout Limiting Factors Analysis - May 30, 2007Engineering Subgroup Meeting 7-10-07Acclimation Pond Site Tour Photos 4-13-07Clear CreekCrab CreekCurly CreekLower FallsMuddy RiverACC 3-8-07 MeetingBull Trout Limiting Factors Analysis Presentation 2-8-07 - Aquatics Coordination Committee - 2006
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ACC Meeting Agendas
2-7-06 Engineering Subgroup Agenda
3-7-06 Engineering Subgroup Agenda
4-12-06 Engineering Subgroup Agenda
5-17-06 Engineering Subgroup Agenda
5-30-06 H&S Plan Subgroup Meeting Agenda
6-26-06 Engineering Subgroup Agenda
8-8-06 Engineering Subgroup Agenda
9-18-06 Hatchery Engineering Subgroup Agenda
9-25-06 Engineering Subgroup Agenda
10-31-06 Engineering Subgroup Agenda
11-30-06 Engineering Subgroup Agenda
12-12-06 Engineering Subgroup Agenda
ACC Meeting Notes
2-7-06 Engineering Subgroup Meeting Notes
3-7-06 Engineering Subgroup Meeting Notes
4-12-06 Engineering Subgroup Meeting Notes
5-17-06 Engineering Subgroup Meeting Notes
6-26-06 Engineering Subgroup Meeting Notes
8-8-06 Engineering Subgroup Meeting Notes
9-25-06 Engineering Subgroup Meeting Notes
10-31-06 Engineering Subgroup Meeting Notes
12-12-06 Engineering Subgroup Meeting NotesACC Final Documents
Bull Trout Limiting Factors Analysis - Final Study Plan 9/19/06
Lewis River Spawning Gravel Evaluation - Final Year One Report - April 2006
2006 Final Annual Report - Proposed LR Aquatic Fund Projects - Aquatics Coordination Committee - 2005
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ACC Meeting Agendas
ACC Final Meeting Notes
3-22-05 Engineering Subgroup Meeting Notes
5-4-05 Engineering Subgroup Meeting Notes
8-30-05 Engineering Subgroup Meeting Notes
ACC Final Documents
Aquatic Fund - Strategic Plan & Administrative Procedures - Sept. 2005
Terrestrial and Aquatic Coordination Committees Structure and Ground Rules
Terrestrial Coordination Committee (TCC)
- Terrestrial Coordination Committee - 2013
- Terrestrial Coordination Committee - 2012
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TCC Meeting Notes & Agendas
3-14 & 3-15-12 Meeting (includes field notes)7-11-12 Meeting (Cancelled)
8-8-12 Meeting (Cancelled)
9-12-12 Meeting (Cancelled)
TCC Final Documents
- Terrestrial Coordination Committee - 2011
- Terrestrial Coordination Committee - 2010
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TCC Meeting Agendas
September Meeting CANCELLED
TCC Final Meeting Notes
September Meeting CANCELLED
TCC Shared Documents
Wildlife Habitat Management Plan Snags - July 2010TCC Final Documents
Lewis River Bald Eagle Management Plan, August 2010 (this document is password protected)
Lewis River WHMP Annual Plan for Operation Phase 2010 - May, 2010 - Terrestrial Coordination Committee - 2009
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TCC Meeting Agendas
TCC Final Meeting NotesTCC Final Documents - Terrestrial Coordination Committee - 2008
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TCC Meeting Agendas
TCC Final Meeting Notes
TCC Final DocumentsTCC Shared Documents - Terrestrial Coordination Committee - 2007
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TCC Meeting Agendas
TCC Final Meeting NotesTCC Shared Documents - Terrestrial Coordination Committee - 2006
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TCC Meeting Agendas
TCC Meeting Notes
TCC Final Documents - Terrestrial Coordination Committee - 2005
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TCC Meeting Agendas
12-12-05 Meeting Agenda
TCC Final Meeting Notes
TCC Final Documents
Terrestrial and Aquatic Coordination Committees Structure and Ground Rules
ACC & TCC Meeting Schedule
ACC/TCC Annual Reports
- 2012 ACC/TCC Annual Report
- 2011 ACC/TCC Annual Report
Recreation Advisory Committee (LRC)
Recreation Resource Management Plan
Recreation Resource Management Plan - June 2008
- Recreation Advisory Committee - 2013
- Recreation Advisory Committee - 2012
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Recreation Advisory Committee Meetings
Yale Lake IP Road Trail Implementation Plan and Technical Assessment Report, December 2012 (PDF)
- Recreation Advisory Committee - 2010
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Recreation Advisory Committee Meeting Agendas
Recreation Advisory Committee Shared Documents
Lewis River Interpretive & Education Plan, April 2010
Lewis River Dispersed Campsites Program: Dispersed Site Monitoring Report - January 2010 (Volume 1)
Lewis River Dispersed Campsites Program: Dispersed Site Monitoring Report - January 2010 (Volume 2)
Lewis River Dispersed Campsites Program: Dispersed Site Monitoring Report - January 2010 (Volume 3) - Recreation Advisory Committee - 2009
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Recreation Advisory Committee Shared Documents
- Recreation Advisory Committee - 2008
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PRESS RELEASE - Trout season opening delayed at Swift Reservoir, 4-11-08Recreation Advisory Committee Meeting Agendas
Recreation Advisory Committee Shared Documents
- Recreation Advisory Committee - 2007
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Recreation Advisory Committee Meeting Agendas
Shoreline Management Plan (SMP)
- SMP Meeting Public Comments
- SMP Shared Documents
Construction for Lewis River Fish Passage Projects
Overview
Construction work began in April 2011 on new fish passage facilities at the 510-megawatt Lewis River project in Southwest Washington. The new facilities will collect adult fish at Merwin Dam and transport them upstream of Swift Dam where they will be released and can move up the river to spawn. As their young begin migrating to the ocean, they will be collected at Swift Dam by a floating surface collector and transported by truck downstream to a release facility in the lower river. When complete, these projects will open up 117 miles of salmon and steelhead habitat upstream of Swift.
- Merwin Upstream Collection and Transport Facility
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This project has five main parts:
- Attraction water system
- Fish ladder & hoist
- Holding tank
- Sorting facility
- Truck loading
How does the system work?
Adult fish return to the Lewis River and are attracted to the intake facility by river water coming out at a steady stream, which mimics a natural current and leads the fish away from the working parts of the dam and power house where the fish could be injured.The fish follow this current up a short fish ladder that ends in a trap basket on a hoist that delivers the fish to the holding tank and sorting facility. The fish are sorted based on species, origin (hatchery or wild fish), and point of origin if that can be determined (by tags or fin clips).
Once sorted, fish are loaded onto specially designed trucks that take them to the hatchery or upstream of the dams to be released and allowed to spawn naturally in the stream beds of the Lewis River and its tributaries.
- Swift Reservoir Fish Facility
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This project has four main parts:
- Floating Surface Collector
- Net system
- Mooring tower
- Access trestle
How does the project work?
Juvenile fish, the offspring of the salmon and steelhead that spawned upstream, will come downstream through the reservoir as they migrate to the ocean.
Given the attraction to downstream current, the juvenile fish will move towards the Floating Surface Collector which re-circulates water to simulate a lake outlet. The net system and the Floating Surface Collector will attract these fish, which are typically 3 - 6 inches long at this stage in life, into a collection area. The fish are collected and gently transported from the facility on specially design trucks via the access trestle. The juvenile fish are then trucked around the dams and released downstream of Merwin to continue their journey to the sea.
The Floating Surface Collector will be located just off the south end of the Swift dam, anchored by the mooring tower and connected to the dam by an access trestle. The mooring tower and access trestle are supported on piles, and the Floating Surface Collector rises and falls with the reservoir level.
How will this affect me?
The construction for the Swift Reservoir Fish Facility will be staged from Swift Forest Camp and Swift Dam and will result in some disruptions and closures to recreation facilities. Check this webpage for updates on closure information.
Because the Floating Surface Collector is being constructed at Swift Forest Camp, it will need to be floated down the reservior to be installed to the mooring towers. This will be done in the following manner:
- When the reservoir is low in late winter/early spring of 2012, the Floating Surface Collector will be rolled on a specialized dolly system onto on the dry reservoir bed.
- The dolly system will be removed and the Floating Surface Collector will be place on support blocks.
- As the reservoir refills for summer of 2012, the Floating Surface Collector will float and then be towed toward Swift Dam for attachment to the Mooring Tower Structure.
Please continue to check our website for more updates about closures, restrictions, and overall construction progress!
Construction Status
The construction for the Swift Reservoir Fish Facility will be staged from Swift Forest Camp and Swift Dam and will result in some disruptions and closures to recreation activities. Check the links below for updates on closure information.
Swift Dam is now open to pedestrian access.
- Merwin Upstream Collection and Transport Facility
- Swift Reservoir Fish Facility
