Supporting Documentation
- Flood Retention Facility – Expandable (FRE) Supplemental Design Report (September 2018)
- Fish Passage: Collect, Handle, Transfer, and Release (CHTR) Preliminary Design Report (February 2018)
- Combined Dam and Fish Passage Design Conceptual Report (July 2017)
- Analysis of Salmonid Habitat Potential to Support the Chehalis Basin Programmatic Environmental Impact Statement (July 2017)
- Washington Department of Fish and Wildlife Studies
- 2015 Upper Chehalis Instream Fish Study (September 2016)
- 2015 Chehalis ASRP Off-Channel Habitat Summary Based on Egg Mass Surveys: 2nd Progress Report (November 2015)
- 2015 Chehalis ASRP Off-Channel Habitat Summary Based on Off-Channel Extensive Surveys: 2nd Progress Report (November 2015)
- 2016 Chehalis ASRP Intensive Surveys in Off-Channel Habitat: 2nd Progress Report (July 2016)
- 2016 Chehalis ASRP Instream Amphibian Surveys: 3rd Progress Report (July 2016)
- 2015 Draft Riverscape Study Report (January 2016)
- Behavior and Movement of Adult Spring Chinook Salmon in the Chehalis River Basin (Liedtke, USGS, 2016)
- Effects of Climate Change on the Hydrology of the Chehalis River Basin (Mauger et al, July 2016)
- Chehalis Basin Strategy: Reducing Flood Damage and Enhancing Aquatic Species, Phase 1 Site Characterization, Technical Memorandum (HDR and S&W, September 2015)
- Chehalis Basin Strategy: Reducing Flood Damage and Enhancing Aquatic Species, Phase 2 Site Characterization, Technical Memorandum (July 2017)
- Chehalis Basin Strategy: Reducing Flood Damage and Enhancing Aquatic Species, Phase 2 Site Characterization, Technical Memorandum — Draft (HDR and S&W, September 2016)
- Chehalis Basin Strategy: Flood Retention Dam Summary of Costs and Life of Dam (September 2016)
- Literature Review of the Potential Changes in Aquatic and Terrestrial Systems Associated with a Seasonal Flood Retention Only Reservoir in the Upper Chehalis Basin (March 2017)
- Landslide Reconnaissance Evaluation of the Chehalis Dam Reservoir (S&W, September 2015)
- Upper Chehalis Basin Large Wood Loading Inventory (Anchor QEA, September 2016)
- Restorative Flood Protection Technical Report – Draft (NSD, September 2016)
- Development and Calibration of the Chehalis River CE-QUAL-W2 Water Quality Model (PSU, April 2017)
- Reservoir Water Quality Model (June 2017)
- Upper Chehalis River Geomorphology Report (WGD, June 2017)
- Summary of Water Quality Data Collected on February 9, 2017 and March 29, 2017 (June 2017)
- Operations Plan for Flood Retention Facilities (June 2017)
- Site Characterization and Dam Conceptual Design Presentation (December 2016)
- Upper Chehalis Basin HEC-HMS Model Development (June 2017)
Land Use/Floodplain Management Studies
- Repetitive Flood Loss Strategy (French & Associates, 2014)
- Community Rating System Program Review (French & Associates, 2014)
- Chehalis River Basin Basin-Wide Floodplain Management Assessment (French & Associates, 2014)
- Floodplain Management Assessment Master Report (French & Associates, 2015)
- Status of Improved Regulatory Standards (French & Associates, 2017)
Washington Department of Fish and Wildlife Species/Habitat Studies
- Terrestrial Amphibian Survey (2014)
- Stream-associated Amphibian Survey (4th progress report) (2017)
- Stream-associated Amphibian Survey (3rd progress report) (2016)
- Stream-associated Amphibian Survey (2nd progress report) (2015)
- Amphibian Egg Mass Off-channel Survey (2016)
- Intensive Off-channel Survey (2016)
- Waterfowl and Waterbird Abundance (2017)
- Changes in the Chehalis Floodplain: 1938-2013 (2017)
- Investigating Juvenile Life History and Maternal Run Timing of Chehalis River Spring and Fall Chinook Salmon using Otolith Chemistry (2017)
October 11, 2016 Policy Workshop Presentation
September 21, 2016 Technical Workshop Presentations
- Programmatic SEPA Draft EIS
- Species and Habitat Studies
- Climate Change
- Dam Operation Studies
- Restorative Flood Protection Studies
September 22, 2016 Technical Workshop Presentations
- Programmatic SEPA Draft EIS
- Flood Retention Facilities (Dam)
- Restorative Flood Protection
- Other Large- and Local-scale Flood Protection Action Elements
- Aquatic Species Habitat Actions
- Comparison of Combined Alternatives
Reports
- Chehalis Basin Work Group Recommendations Report (2014)
- Ruckelshaus Center Alternatives Report (2012)
- Executive Summary of the Ruckelshaus Center Alternatives Report (2012)
- Comments on the Draft Ruckelshaus Center Alternatives Report (2012)
January 21, 2016 ASRP Workshop
- Summary of January 21, 2016 ASRP Workshop
- Compiled Presentations from January 21, 2016 ASRP Workshop
October 7, 2015 Policy Workshop
September 22, 2015 Technical Workshop Presentations
- Confederated Tribes Porter Restoration
- Extensive Off-channel Habitat Surveys
- Instream Amphibian Surveys
- Off-channel Habitat Egg Mass Surveys
- Off-channel Habitat Beaver Assessment
- Results from a Pilot Study to Evaluate Movement and Temperature Use Patterns of Adult Spring Chinook Salmon
- Riverscape Patterns of Fish and Habitat
- September 22 Synthesis Session
- Stream-associated Amphibian Surveys
- Summer Movements of Juvenile Salmonids
- Summer Rearing Distribution Behavior of Juvenile Salmonids: Synthesis and Next Steps
- Temperature Characteristics of the Chehalis River Watershed within the Distribution of Spring Chinook Salmon
- Upper Chehalis River Smolt Trapping, 2013-2015
- Using PHABSIM to Investigate Effects of Altered Streamflow
- Water Quality Studies Completed in 2013-2015 Biennium
- WQ Technical Tasks
Technical Memos from 2013-2015 Biennium
- Aquatic Species Restoration Program Effects Report – Final
- Aquatic Species Restoration Program Report – Final
- Chehalis Basin Strategy 2015-2017 Biennium Scope and Budget – Final
- Chehalis Phase 1 Site Characterization
- Comparison of Alternatives Report – Final
- Hydraulic Model Report – Final
- Small Projects Report – Final
- Structures in Floodplain Survey Report – Final
- Water Retention and Fish Passage Report – Final
- WSDOT I-5 Chehalis Flood Report – Final