The existing bridge is a six span, 107-foot long structure that was last re-built in 1981. This bridge is built on timber piles and needs to be updated to meet Seismic Design Codes. Jordan Creek Bridge is considered a seismic lifeline route structure. Seismic lifeline routes are designated as essential to life safety services after seismic events. Funding for a replacement bridge has been secured and construction of a new bridge is proposed for 2024.
Snohomish County is working to complete topographic surveys, hydraulic analysis and soil investigations to support scoping and design engineering of the replacement bridge. The proposed replacement bridge will be two lanes with shoulders and will improve sight distance to meet current design standards.
The single lane revision is only causing minimal delays in peak travel periods. Traffic impacts during construction are under review.
An environmental review and public comment period are scheduled in 2021.
Snohomish County has secured a Federal bridge replacement grant to pay for part of the cost of replacing the bridge. The Federal grant requires Snohomish County to match 20% of the grant amount. Federal bridge replacement funds will be available in 2020 and construction is planned for 2024.