Expect reduced lanes and a 50-mph speed limit at five locations on US 12 and SR 8 in Grays Harbor County.
This project replaces five outdated culverts under US 12 and State Route 8 in Grays Harbor County between Montesano and the Thurston County line for improved fish migration.
What to expect
On June 12, 2023, crews started work at three culvert locations under US 12 and two under SR 8 with intermittent lane closures in each direction.
Throughout the summer and fall, crews will build crossover lanes at each work zone. Once the crossover lanes are complete, crews will shift both directions of traffic onto the same side of the highway. One lane will remain open in each direction. Travelers can expect around-the-clock shifted lanes and reduced speed limits until the end of the project in late 2025. The majority of the work will take place Monday through Friday during daytime hours.
In addition to lane closures, travelers will also see intersection closures. The Monte-Brady Road intersection with US 12 is closed at milepost 12.5 near Montesano for the duration of the project. Travelers can still exit the highway in either direction. The Monte-Brady Road intersection at milepost 14.7 in Brady will remain open. On SR 8, the median crossing at Mox Chehalis Road East at milepost 8 will close. Travelers on Mox Chehalis Road East will have access to turn right onto the highway. Left turns will be limited throughout the project. The Mox Chehalis Road overpass near McCleary will remain open.
This project addresses multiple barriers to fish that travel under US 12 and State Route 8 in Grays Harbor County between Montesano and the Thurston County line.