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Crews working for WSDOT will realign the stream and grade the channel for Unnamed Tributary to Lake Creek on Southeast 104th Street just south of the city of Snoqualmie in King County. The stream’s culvert will remain as-is during this project’s stream bed work. This project is required to support…

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.

This project will rehabilitate just under one mile of eastbound Interstate 90 Mercer Slough Bridge from Bellevue Way Southeast to I-405. Crews working for WSDOT will install new bearing seats, modify expansion joints and install new expansion seals. This work will preserve the structural integrity…

This project will pave nearly two miles of eastbound Interstate 90 from 118th Avenue Southeast (MP 9.72) to 150th Avenue Southeast (MP 11.55) in Bellevue. Crews working for WSDOT will rehabilitate the existing roadway surface and restore the roadway striping. In addition, on the bridge over…

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…

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.…

Crews working for WSDOT will perform crack sealing and asphalt patching on numerous routes in King, Snohomish, Skagit, Whatcom and Island counties. The work also includes concrete panel replacement on seven miles of Interstate 5 from just north of the Ship Canal Bridge to just south of Northeast…

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…

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,…

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.

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…

Three culverts carrying tributaries to Hylebos Creek near Federal Way that block fish passage will be replaced with new structures under SR 161 that restore natural stream conditions. This work builds on our commitment to remove fish barriers on streams that run under state highways.

As part of WSDOT’s fish passage program, we will remove two culverts at State Route 164 and three culverts at SR 410 that do not allow fish to pass and replace the culverts with fish-passable structures. Two culverts will be replaced west of Enumclaw along Seconds Creek and an Unnamed Tributary to…

SR 164/Auburn Way South provides primary access to the Muckleshoot Indian Reservation and growing areas of east Auburn. The Muckleshoot Indian Tribe is leading this project to reduce congestion, increase safety, and accommodate growth on the SR 164 corridor from SR 18 to the Poplar Street curve.

This project built a bridge for SR 164 over Pussyfoot Creek on the Muckleshoot Indian Reservation east of Auburn. By removing the old culvert and creating a more natural stream channel, we opened up access to 9.3 miles of habitat for salmon and other fish.

The SR 167 Corridor Improvements Project is comprised of the SR 167 Toll Equipment Upgrade Project and the SR 167, SR 516 to South 277th Street Southbound Auxiliary Lane Project. As part of the SR 167 Toll Equipment Upgrade Project, we plan to update the SR 167 toll system to create consistency…

The bridge deck of southbound State Route 167, just north of SR 516/Willis Street, in Kent is worn and has areas of exposed rebar and concrete damage in need of repair. This project will repair concrete and provide a new driving surface for the bridge deck. Construction crews will also replace…

WSDOT plans to construct an additional one mile of general-purpose capacity by adding an auxiliary lane on southbound SR 167 between SR 516 and South 277th Street in Kent. The project aims to address operational challenges and will be constructed using existing shoulder pavement.

In 2021 and 2022, between Maple Valley and Black Diamond we replaced the culvert that carries Ravensdale Creek under SR 169, along with two other nearby culverts. The existing culverts were narrow, which forces the water through too quickly for salmon and other fish to continue upstream.

Reconnecting waterways where our roads act as barriers is a priority for the state. In western Washington, that means building hundreds of fish passable structures under state highways to create habitat essential for meeting fish recovery goals. Beginning as soon as early 2025, WSDOT will begin…

This project will pave roughly three miles of eastbound State Route 18 from C Street Southwest to Green River. Crews working for WSDOT will rehabilitate the existing roadway surface, deteriorated bridge decks and joints of the C Street Southwest bridge and five eastbound on and off-ramps. Once…

SR 18 is a crucial highway connecting the south Puget Sound area with I-90, the state's main east-west route. SR 18 has experienced frequent congestion and collisions for decades.

WSDOT received construction funding from the 2022 Move Ahead Washington transportation package and…

WSDOT will construct a wetland mitigation site inside the Preston Mill Park/Jim Ellis Memorial Regional Park. Project work includes creating and improving wetlands and sensitive area buffers, grading, stream connections, new access roads, plantings, and other improvements. Most work will take…

As part of WSDOT’s fish passage program, we will remove two culverts that do not allow fish to pass and replace them with fish-passable structures along Unnamed Tributary to Big Soos Creek and Unnamed Tributary to Soosette Creek at State Route 18 in Auburn. The new structures have the potential to…

As part of the state's fish recovery efforts, WSDOT has made it a priority to reconnect waterways where roads act as barriers. In Western Washington, that means replacing culverts and building hundreds of fish-passable structures under state highways by 2030 to create more habitat which is…

This project will remove a fish passage barrier along Evans Creek at State Route 202 just west of 236th Avenue Northeast near Sammamish. Contractor crews working for WSDOT will remove an existing 6-foot box culvert and fish ladder and replace it with a fish-passable structure. This new structure…

This project will remove the fish barrier on State Route 202 just east of Fall City at Mud Creek. The project will also improve the safety and reliability of SR 202 by addressing the need for frequent emergency maintenance and channel dredging at the crossing due to sedimentation and flooding of…

In July 2024, WSDOT began replacing two culverts near the intersection of State Route 202 and Northeast 124th Street between Redmond and Woodinville with a single culvert. Two creeks in the area — an unnamed tributary of the Sammamish Creek and High School Creek — will be realigned to merge with…