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This project will replace a total of 51 luminaires at six interchanges along I-90 between the city of Sprague in Lincoln County and the SR 904 interchange in Spokane County. The aging illumination system will be replaced with modern components including LED light fixtures which will save on…

Growth in Snoqualmie Valley has made the I-90/SR 18 interchange one of the busiest in the state, causing backups during peak times and busy travel weekends. To improve traffic flow, WSDOT is building a diverging diamond interchange and adding two lanes on SR 18 between the interchange and Deep…

This work was completed in spring 2023. Contractor crews repaired a steel girder that supports 142nd Place Southeast over Southeast Eastgate Way and I-90. The girder was damaged when it was struck by a truck hauling construction equipment that was too tall.

The Modular Assembly Joints on the I-90 EB East Channel Bridge are deteriorating and have reached the end of their service life. Replacing the existing expansion joints will preserve the bridge’s structural integrity and extend its service life.

In September 2022, contractor crews working for WSDOT replaced the original expansion joint on the east end of the westbound I-90 Homer Hadley bridge that connects Mercer Island to Seattle.

In 2022, we added drainage and replaced about 1,550 feet of concrete panels on westbound I-90 with asphalt. During 2023 we replaced select concrete panels to smooth a 1-mile section of rough freeway about 1.5 miles west of SE High Point Way. In addition, we completed repairs at two bridges along…

The Industrial Way/Oregon Way (IWOW) Intersection is a four-legged intersection with Industrial Way (SR 432) as the east and west legs, Oregon Way as the north leg and SR 433 as the south leg, which crosses the Columbia River into Oregon.

The IWOW project is being designed to reduce…

The North Spokane Corridor (NSC) is a 10.5-mile multi-modal corridor. When complete, the NSC will be a 60-mile per hour, north/south limited access facility that connects I-90 at the south (just west of the existing Thor/Freya interchange) and connects to US 2 (at Farwell Road) and US 395 (at…

We repaired or replaced the concrete on 17 bridges in King, Snohomish, Skagit and Whatcom counties. Before this project, many of these concrete bridge decks had patches covering old potholes and ruts. Contractor crews removed damaged and patched areas and replaced it with new slabs of concrete.…

The Northwest Region Emergency Pavement Repair project covered 88 locations among 23 communities in King, Snohomish, Skagit and Whatcom counties. The repairs spanned three interstates, 12 state highways and about 20 miles of pavement repair, including four bridge decks.

Completed in…

Crews repaired and replaced damaged driving surfaces of several bridges in Grays Harbor, Mason, Jefferson, and Kitsap Counties.

The Puget Sound Gateway Program combines the SR 509 Completion Project in King County and the SR 167 Completion Project in Pierce County to complete critical missing links in Washington state's highway and freight network. These projects build important new connections to the state's…

Dozens of preservation projects are planned to revive Interstate 5 in King and Snohomish counties. Washington’s main freeway was built in the 1960s and needs major preservation and renovation work. Over the coming years, Revive I-5 projects will include pavement repair and full replacement,…

Workers repaired the surface of westbound SR 16. Repairs were also made to three bridge expansion joints.

This project completes final roadway work around the south portal of the SR 99 tunnel and builds new pedestrian and bicycle amenities that connect Seattle’s stadiums with the waterfront.

In summer of 2020 and 2021, WSDOT's contractor, Doolittle Construction, LLC. worked to repair and resurface a nearly 20-mile stretch of highway along State Route 103 and a short section of US 101 through Seaview, Long Beach, Ocean Side, Ocean Park and Oysterville, in Pacific County. Doing this…

Crews will upgrade and replace key elements of the SR 104 Hood Canal Bridge. The construction bolsters systems that guide the bridge together and keep both halves of the bridge connected.

This project will remove a fish passage barrier on State Route 104 at Lyon Creek just west of 35th Avenue Northeast in Lake Forest Park. Contractor crews working for WSDOT will upgrade an existing 6-foot by 4-foot box culvert with a 24-foot structure. This new structure has the potential to open…

This project improves safety along State Route 104 in Jefferson County at Shine-Paradise Bay Road by way of a single-lane, metered roundabout. A roundabout will be installed to reduce the severity and frequency of head-on crashes and improve the flow of traffic.

To improve safety and reduce head-on collisions, crews will construct a single-lane roundabout at State Route 104 and SR 19 (Beaver Valley Road).

Roundabouts are a proven solution to reduce the frequency and severity of collisions while maintaining a consistent flow of traffic.…

This project would relocate travelers heading to and from the Kingston Ferry Terminal to Northeast 1st Street.

This project repaired and preserved several highways in Mason, Jefferson, Clallam and Pierce Counties.

WSDOT removed a barrier to fish under SR 106 at Twanoh State Park. WSDOT removed the existing culvert and replaced it with a box culvert.

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.

This project will replace culverts under SR 109 in Grays Harbor County.

This project involved repairs to the Grass Creek Bridge on State Route 109 west of Hoquiam. Work at this site included installing two steel piles and a steel cross beam at three of the bridge pier locations to support the bridge and restore its weight capacity.

Crews worked to stabilize the hillside above SR 109 west of Hoquiam.

This project repaired an unstable slope along State Route 112 in Clallam County. Crews reopened the highway to two-way travel on Friday, July 9, 2021.

Crews reopened State Route 112 near Clallam Bay to two-way travel at 6 p.m. Monday, March 21. The highway closed on Monday, Nov. 15, 2021 due to massive landslide and regionwide flooding. The detour using Eagle Crest Way has been removed.

Crews worked to remove additional slide…

Construction to reopen State Route 112 at milepost 32 began Monday, March 28, 2022 after the highway dropped almost 4-feet. Work at Jim Creek includes: slope stabilization efforts, roadway repairs, installation of new guardrail, installation of new trench and horizontal drains, replacement of three…