State Highway Road Construction 9/9 to 9/15

The following is a summary of road construction and maintenance scheduled on state highways around Mason County and adjacent areas from September 9, 2018 to September 15, 2018.


US 101 – Lynch Road – Safety Improvements
US 101 Region: Olympic County: Mason Location: Milepost(s)  352.5
Description: Crews will make roadway modifications to help increase sight distance for Lynch Road drivers merging onto southbound US 101.

Crews will make the following improvements:
• build a 1,200-foot-long acceleration lane for Lynch Road drivers merging onto northbound US 101 (heading toward Shelton);
• build a 1,140-foot-long acceleration lane for Lynch Road drivers merging onto southbound US 101 (heading toward Olympia).

The acceleration lanes will enhance drivers’ ability to reach highway speeds before merging onto the highway.

Work Schedule: See below: 
Daytime single-lane closures hours:

Northbound US 101 
5 a.m. to 2 p.m. Monday through Friday
7 a.m. to 8 p.m. Saturday and Sunday

Southbound US 101
9 a.m. to 8 p.m. Monday through Friday
7 a.m. to 8 p.m. Saturday and Sunday

Drivers can also expect night closures of the highway median. Signed detours will be provided via the first Shelton exit (SR 3) and Kamilche.

Night median closure hours:
7 p.m. Sunday through Thursday, until 6 a.m. each following day.
8 p.m. Friday, until 8 a.m. Saturday
8 p.m. Saturday, until 8 a.m. Sunday.

The speed limit in both directions be reduced to 40 mph during work activities.

Project web page

US 101/Kennedy Creek Bridges – Special Repair
US 101 Region: Olympic County: Mason Location: Milepost(s) 356.5
Description: Crews will repair supports that elevate both US 101 bridges over Kennedy Creek.
Work Schedule: Drivers may encounter right shoulder closures in both directions and short-term right lane closures. The project is scheduled to be complete fall 2018.

SR 8 – Middle and East Forks Wildcat Creek – Remove Fish Barriers
Highway: SR 8 Region: Olympic County: Grays Harbor Location: Milepost(s) 4.3 to 7.5
Description: The eastbound lanes have been reconfigured to accommodate both directions of traffic as crews replace outdated culverts under SR 8 to improve fish passage for Middle and East Fork Wildcat Creek.
Work Schedule: Around the clock traffic shift through spring 2019. Any lane closures will be announced.


Highway: SR 300 Region: Olympic County: Mason Location: Milepost(s) 0 to 1
Description: One-way alternating traffic with flaggers for mowing.
Work Schedule: 8 a.m. to 3 p.m. each weekday from Wednesday, Aug. 29 through Thursday, Sept. 6.

Highway: US 101 Region: Olympic County: Jefferson Location: Milepost(s) 283.6
Description: One-way alternating traffic for guardrail repairs.
Work Schedule: 8 a.m. to 4 p.m. Monday, Sept. 10 through Tuesday, Sept. 11.

Highway: SR 302 Region: Olympic County: Pierce Location: Milepost(s) 10.5 to 11.6
Description: One-way alternating traffic with flaggers.
Work Schedule: 9 p.m. to 5 a.m. each weeknight through Friday, Sept. 28. Some daytime work may

Highway: SR 8 Region: Olympic County: Thurston Location: Milepost(s) 10.5 to 20.6 
Left lane shoulder closure for vegetation management. 
Work Schedule: 
7 a.m. to 4 p.m. Monday through Thursday, Sept. 10-13.

Highway: SR 8 Region: Olympic County: Grays Harbor Location: Milepost(s) 0 to 20
Description: Right shoulder closure for mowing.
Work Schedule: 7:30 a.m. to 4 p.m. Thursday, Sept. 13.

Highway: SR 8 Region: Olympic County: Grays Harbor Location: Milepost(s) 0 to 20.6
Description: Single lane closure for vegetation management.
Work Schedule: 7 a.m. to 4 p.m. Monday, Sept. 10 through Thursday, Sept. 13.


Highway: US 101 Region: Olympic County: Mason Location: Milepost(s) 343.8
Description: Troopers will provide traffic control at the Sanderson Field entrance.
Event Schedule: 9 a.m. to 5 p.m. Saturday, Oct. 6 through Sunday, Oct. 7.

Tips for Driving Through Work Zones

  • Pay attention – Driver inattention is the number one cause of work zone accidents.
  • Leave room between you and the car ahead of you – Most work zone accidents involve someone
  •  running into the car ahead of them. Drive defensively – be aware of what is happening around you.
  • Merge before you reach the work zone.
  • Don’t use cell phones or adjust your radio while driving through the work zone.