2025 Civic Engagement: White River SR 410 Flood and Erosion Risk Reduction

The National Park Service is evaluating a proposal from the Washington State Department of Transportation (WSDOT) to install two engineered log structures within the White River floodplain adjacent to State Route 410 within designated wilderness at Mount Rainier National Park. These structures are intended to deflect high flows from the White River to help minimize the potential for severe damage to the highway that would result if the White River shifted into two new side channels that are forming which are directed towards the existing road corridor. Public input is requested to identify potential impacts that would result from the proposed action, to identify other alternatives that would address the near-term risks, and to identify any existing information that would help to support the analysis. Information provided will be used to help inform environmental analysis and wilderness minimum requirement analysis to support decision-making by the National Park Service.

To learn more about the WSDOT proposed action visit the project links using the left menu or view the attached documents.

Document Content:

NEWS RELEASE_Mount Rainier National Park seeks public input on State Route 410 White River Flooding and Erosion Risk Reduction Project.pdf   (212.8 KB, PDF file) WhiteRiverSR410_Frequently Asked Questions.pdf   (115.2 KB, PDF file) Disclaimer: Links within the above document(s) were valid as of the date published. Note: Some of the files may be in PDF format and can be viewed using the Adobe Acrobat Reader software. You may download a free copy of from Adobe Systems.