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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. An interlocal agreement has been adopted by these jurisdictions for the purpose of study, analysis and implementation of flood control projects to protect the Chehalis River Basin.

US Army Corps of Engineers

Regular Meetings are held every third Thursday. Work Session: 9:00 A.M. at the Veterans Memorial Museum; Business Meeting: 1:30 P.M. at the Lewis County Historic Courthouse

request for qualifications: Early flood warning program

Public Information and updates

Chehalis River Basin Comprehensive Flood Hazard Management Plan, June 2009
NOTE: This is a very large file: 10MB

Flood Authority Update, June 2009

Flood Authority Update, May 2009

Summary of Flood Authority Public Meetings

Phone Survey

Meeting information

January 21, 2010: Work Session 9AM; Business Meeting 1:30 P.M.  NOTE: Work Session to be held in the WSU Extension Conference Room, Courthouse Basement

  1. Coordinated Study
  2. Regulatory Work Group Findings
  3. Memo re: Flood Districts
  1. Ripe and Ready Studies Report
  2. Coordinated Study
  3. Upstream Storage Analysis Phase 2B
  4. OFM Budget Amendment
  5. Memo re: Flood Districts

December 17, 2009: Work Session 9AM; Business Meeting 1:30 PM

November 19, 2009: Work Session 9 AM; Business Meeting 1:30 PM

October 15, 2009 - Business Meeting Only. There will be no work session this month

September 17, 2009

August 20, 2009 - Business meeting only. There will be no work session this month.

July 16, 2009

June 18, 2009

May 21, 2009

  1. Lewis County Flood Disaster Strategy Report
  2. Memo: Recommended Actions and Programs for Draft Plan
  3. Memo: Land Use Regulatory Programs
  4. Chapter 6: Flood Problem Areas
  5. ESA Adolfson Proposed Contract Amendment
  1. Ripe and Ready Studies Update
  2. Ecosystem Services Interlocal Agreement
  3. Expenditure Review
  4. Officer Elections
  5. Twin Cities Project Public Information Event
  6. Flood Authority Work Plan July 2009 - December 2010
  7. OFM Interlocal Agreement Amendment
  8. ESA Adolphson Proposed Contract Amendment

Formation and Funding

Chehalis River Basin Flood Authority Coordinator RFQ

The voting members of the Flood Authority have chosen ESA Adolfson as Consultant and Facilitator of the Chehalis River Basin Flood Authority project. ESA Adolfson will begin working with the Flood Authority on the Scope of work and contract language.

Request for Qualifications

Submittal of Qualifications for ESA Adolfson

Approved 2010 Meeting Notes (Dates not hyperlinked are awaiting approval by the Flood Authority

Jan 21 Feb 18Mar 18Apr 15
May 20Jun 17Jul 15Aug 19
Sep 16Oct 21Nov 18Dec 16

Approved 2009 Meeting Notes (Dates not hyperlinked are awaiting approval by the Flood Authority

Jan 15 Feb 19Mar 19Apr 16
May 21Jun 18Jul 16Aug 20
Sep 17Oct 15Nov 19Dec 17