• Project

SR 108 - US 101/Mason and Thurston Co Fish Barriers - Remove Fish Barriers

Project overview

This project addresses multiple barriers to fish under state highways. Crews will work on SR 108 near Kamilche and US 101 near the Thurston/Mason County line.

Summer 2023 - Fall 2024
Project status
$51.8 million
Project hotline

What to expect

A section of SR 108 near West Hurley Waldrip Road is set to close around-the-clock to all traffic.

From 8 a.m. Monday, May 6 to 8 a.m. Monday, May 20, the highway will close at milepost 9.4.  See "Maps and Drawings" for the specific location and detour route. 

This is the first of three closures planned on SR 108 between spring and fall. The second and third closures are not yet scheduled. WSDOT will give advance notification well before the remaining closures.

This project also includes work on US 101 near the Thurston/Mason County line. Unlike total closures on SR 108, crews will keep US 101 open to traffic. WSDOT will give advance notice before that work begins. 


Locations of SR 108 and US 101 work zones.