• Project

SR 106/Twanoh Creek - Remove Fish Barrier

Project overview

WSDOT will remove a barrier to fish under SR 106 at Twanoh State Park. WSDOT will remove the existing culvert and replace it with a box culvert.

Summer 2023
Project status
$1 million to $5 million

What to expect

WSDOT plans to close SR 106 at Twanoh State Park for up to 20 days after the 4th of July 2023. The total closure will start as early as July 9 and be completed no later than July 31. 

The highway will be closed in both directions to all traffic around-the-clock. A signed detour will be provided. 

Travelers will also see around the clock one-way alternating traffic before and after the closure.

The total closure will minimize the construction footprint. It will also reduce the overall timeline of construction.



Location of SR 106 fish barrier removal project.