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Chehalis Basin Partnership
The Chehalis Basin Partnership provides a framework for local citizens, interest groups, and government organizations to work collaboratively to identify and solve water-related issues.

Chehalis River Basin Flood Authority
The Chehalis River Basin Flood Authority was formed in April of 2008 and consists of officials from jurisdictions in the Basin that are affected by flooding.

Chehalis River Council
The Chehalis River Council (CRC) is a volunteer-run nonprofit corporation, dedicated to the conservation and restoration of natural resources in the Chehalis River Basin.

Chehalis Tribe

City of Centralia

City of Chehalis

Department of Ecology – Washington State

Lewis County Conservation District
The LCCD provides technical and financial assistance for the conservation, protection, and development of natural resources within Lewis County.

Lewis County PUD

Thurston County Emergency Management

US Army Corps of Engineers – Seattle District

US Fish & Wildlife Service


Assessment of Salmon and Steelhead Performance in the Chehalis River Basin in Relation to Habitat Conditions and Strategic Priorities for Conservation and Recovery Actions
Final Report, December 2003

Chehalis Basin Partnership Salmon Habitat Restoration Documents

Chehalis Basin Partnership Technical Assessments and Reports

Chehalis Basin Watershed Management Plan

Chehalis Basin Watershed Management Plan - Supplement Section

Comprehensive Flood Hazard Management Plan (CFHMP), June 2010
On Chehalis River Basin Flood Authority website - pdf for download.

Geologic Reconnaissance Study Proposed Chehalis River and South Fork Dam Sites Lewis County, Washington. October 27, 2009

Gridded Surface Subsurface Hydrologic Analysis (GSSHA)

Lewis County PUD, Chehalis River Water Retention Facilities Potential Study. Draft. February 2009

Lower Chehalis Riparian Assessment

Pud Revised Chehalis River Water Retention Project Phase 2b Feasibility Study
On the Chehalis River Basin Flood Authority website - pdf documents for download.

Reconnaissance Level Geotechnical Report Proposed Chehalis River and South Fork Dam Sites Lewis County, Washington. October 28, 2009

SalmonScape
SalmonScape, the Washington Department of Fish and Wildlife's interactive, computer mapping system, is one of the most important tools created thus far to deliver scientific information to those involved in on-the-ground salmon recovery projects.

State of the Art River Report for the Chehalis River Basin, 2006-2007, A Water Quality Study

State of the Art River Report for the Chehalis River Basin, 2006-2009, A Water Quality Study

The Chehalis Basin Partnership Watershed Management Plan, 2007-2008 Detailed Implementation Plan, Volume 1, Strategies 1 through 5. June 2007 Update.

The Chehalis Basin Salmon Habitat Restoration and Preservation Strategy for WRIA 22 and 23 (June 2011)

The Chehalis Basin Salmon Habitat Restoration and Preservation Work Plan for WRIAs 22 and 23
2008 Update

The Chehalis/Grays Harbor Watershed Dissolved Oxygen, Temperature, and Fecal Coliform Bacteria TMDL (Detailed Implementation Cleanup Plan)

Thurston County Flood Bulletin (Fall 2011)

Upper Chehalis River Basin Temperature Total Maximum Daily Load