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I-5 – Chehalis River Basin Flood Reduction - Project Specifics

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Public involvement


Your thoughts and opinions are important to us. The project partners held a series of public meetings in conjunction with the design of the project. Local property owners provided input throughout the design of the project.

For the latest public involvement meetings in southwest Washington, visit the Southwest Region's Public Involvement page.


Increasing safety is our priority

The use of 100-year flood protection levees or other protection measures in the Chehalis River Basin will provide protection for roads and structures throughout the cities of Centralia, Chehalis and the surrounding communities, as well as Interstate 5.


Environmental protection

An Environmental Impact Statement (EIS) will be a large part of this project. The EIS will, in part, determine potential impacts of flood control measures on the environment (natural, ecological, social and economic); it will evaluate options for lessening (mitigating) these impacts; and determine necessary regulatory approvals.

This information will help guide final design and construction of any actions. WSDOT is committed to preserving the environment and makes every effort to assess and minimize environmental impact from its projects.

For environmental information specific to this project, please contact Barb Aberle at (360) 905-2186, or e-mail AberleB@wsdot.wa.gov.


Will this project impact tribal resources?

At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of the National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.

WSDOT has initiated consultation with appropriate tribal governments and will continue to consult with the tribes throughout the process.

For more information visit our WSDOT Tribal Liaison website.