WSDOT Lane Closures on US 101 in Thurston and Mason counties Start August 4
Starting Monday, August 4, contractor crews working for the Washington State Department of Transportation will replace asphalt on sections of the highway.
What to expect
7p to 5a, weeknights, Monday, August 4 through Thursday, August 28:
- Single-lane closures along northbound US 101 between State Route 8 and SR 108.
- Speed limit reduced from 60 mph to 45 mph from milepost 353.86 to milepost 361.25.
Crews expect to complete paving work by the end of August.
Travelers will see lane reductions again at the end of September. After a curing time, crews will return to apply permanent pavement markings and complete the project.
Whenever near work zones please:
- Slow down – drive the posted speeds for worker and traveler safety.
- Be kind – workers are out there helping to keep people safe and improve the roadways.
- Pay attention – both to workers directing travelers and surrounding traffic.
- Stay calm – expect delays, leave early or take alternate routes if possible; no meeting or appointment is worth risking someone’s life.
WSDOT travel tools
Visit the WSDOT online open house to get details on projects happening around the Olympic Peninsula. Sign up for email updates for highway projects in Thurston and Mason counties. Real-time travel information is available on the WSDOT app and statewide travel map.
Hyperlinks within the release:
- Replace asphalt: wsdot.wa.gov/about/news/2025/paving-across-six-state-highways-south-puget-sound-and-kitsap-peninsula-starts-july
- Project: wsdot.wa.gov/construction-planning/search-projects/2025-olympic-region-regionwide-paving-projects
- WSDOT online open house: engage.wsdot.wa.gov/olympic-peninsula-construction/
- Thurston: public.govdelivery.com/accounts/WADOT/subscriber/new?topic_id=WADOT_550
- Mason: public.govdelivery.com/accounts/WADOT/subscriber/new?topic_id=WADOT_552
- WSDOT app: wsdot.wa.gov/travel/mobile-app-and-social-media
- Statewide travel map: wsdot.com/Travel/Real-time/Map/?layers=traffic-flow%2Calert&base=wsdot&extent=-123.31735708986356%2C47.0331093666337%2C-122.86212713334858%2C47.148929923198736&fromLink=true
### WSDOT keeps people, businesses and the economy moving by operating and improving the state’s transportation systems. To learn more about what we’re doing, go to www.wsdot.wa.gov/news for pictures, videos, news and blogs. Real-time traffic information is available at wsdot.com/traffic.
