The highway will close at milepost 5.5. The work zone is located about 2.5 miles northeast of Elma Hicklin Road East.
The closure will continue around the clock from 8 a.m. Tuesday, September 5 to 8 a.m. Tuesday, September 19.
Travelers will detour using US 101 and SR 8 in Thurston County. Shaker Church Road Northwest in Thurston County is limited to local traffic only.
The work is related to a fish barrier removal project at two tributaries to Skookum Creek.