Search projects

Reconnecting waterways where roads act as barriers is a priority for the state. In western Washington, this means building hundreds of fish-passable structures under state highways to create habitat that is essential for meeting fish recovery goals.

Two culverts in the interchange…

During fall 2022, contractor crews replaced the damaged girder on the 12th Street Bridge over Interstate 5 between Everett and Marysville. In addition to replacing the girder, part of the bridge deck and barrier were rebuilt.

We rehabilitated more than 3 miles of pavement, replacing broken panels and grinding the surface to eliminate ruts worn by decades of vehicles. In addition, we replaced expansion joints on four bridges. This project was combined with another rehabilitation project on I-90 to reduce costs.

The project is on I-5 from North Lake Samish (south of the city of Bellingham) to the city of Ferndale near the Nooksack River. The Portland Cement Concrete Panels within the project limits are approximately 60 years old and are near or have exceeded their design life. The project will provide…

Through summer 2023, our contractor crews strengthened three bridges on Interstate 5 so they can better withstand a major earthquake. They wrapped steel “jackets” around the columns that support the bridges to hold the concrete together in an earthquake, reducing the chance of collapse. They also…

This project built a noise wall along southbound Interstate 5 from East Edgar Street to Franklin Avenue East. Contractor crews working for WSDOT constructed the new noise wall to abate noise from the I-5 express lanes just south of the Ship Canal Bridge between Lake Union and Portage Bay. The wall…

We installed new overhead ramp meters at the Swift Avenue South, South Michigan Street/South Bailey Street and Northeast 50th Street on-ramps to northbound Interstate 5 in Seattle. The new ramp meters regulate both the general purpose lanes and the HOV lanes. They replaced existing ramp meters that…

Washington State Department of Transportation and contractor crews will replace existing fish barriers under I-5 and Old Highway 99 near Stanwood with three new fish-passable arch structures to restore fish passage.

On I-5 and Old Highway 99, crews will replace existing culverts…

This project will grind and pave about four miles of southbound Interstate 5 in Everett, from 100th Street Southeast to Broadway Avenue. Crews working for WSDOT will pave the mainline. This project will also replace impacted traffic loops, pavement markings and replace bridge joints.

People who use the interchange at I-5 and SR 523 (North 145th Street) in Shoreline need safe and efficient ways to move through this area, using all modes of transportation. This will be increasingly important with the arrival of Sound Transit Link light rail and the new Shoreline South/148th…

This project will remove a fish passage barrier along Thornton Creek under Interstate 5 near State Route 523/NE 145th Avenue in Shoreline. Contractor crews working for WSDOT will replace the two existing 2,000-foot-long, 6-foot culverts with three fish-passable structures. The current culverts are…

This project removes and replaces several outdated culverts under I-5 roads for the Unnamed Tributaries of Friday Creek, Lake Creek, and Chuckanut Creeks in Whatcom and Skagit Counties.

WSDOT will replace outdated culverts with new structures for improved fish migration in the…

This project will remove three barriers to fish passage along two Unnamed Tributaries to Silver Lake and an Unnamed Tributary to Penny Creek under Interstate 5 near 112th Street Southeast in Everett. Contractor crews working for WSDOT will remove existing culverts and replace them with fish-…

In January 2025, WSDOT postponed long-term I-5 lane closures between downtown Seattle and Northgate, to align construction spending with available budget. WSDOT is currently working with its contractor, Atkinson Construction, to identify the best way to complete this necessary preservation work…

This project will rehabilitate approximately 5.42 miles of I-90 from BNRR Bridge (MP 267.84) to Geiger Road (MP 273.26) in Spokane County by removing the surface of the existing pavement and paving with Hot Mix Asphalt (HMA).

This project adds capacity for both directions of I-90 between Eastgate and West Lake Sammamish Parkway interchanges by restriping the roadway and adding an auxiliary lane. Crews also built sound walls in strategic locations to minimize traffic noise.

This project will rehabilitate roughly 13 miles of Interstate 90 from Ritzville to approximately five miles east of Sprague Lake in Adams County. Once the project is completed by grinding and inlaying new HMA (Hot Mix Asphalt), the roadway surface will have a smoother ride that will be preserved…

Phase 3 is part of a 15-mile corridor improvement project to improve safety and reliability and reduce congestion along I-90 from Hyak to the Easton vicinity. We are increasing traffic capacity and improving safety by adding a new lane in each direction, replacing concrete pavement, stabilizing…

Phase 1 was part of a 15-mile corridor improvement project to improve safety and reliability and reduce congestion along I-90 from Hyak to the Easton vicinity.

Phase 2 was part of a 15-mile corridor improvement project to improve safety and reliability and reduce congestion along I-90 from Hyak to the Easton vicinity.

Phase 4 is part of a 15-mile corridor improvement project to increase safety and reliability and reduce congestion along I-90 from Hyak to the Easton vicinity.

The I-90 Snoqualmie Pass East Project improves 15 miles from Hyak to Easton. Phases 1 and 2 from Hyak to the Stampede Pass interchange are complete. Phase 3 is underway.

WSDOT is building bridges over Sunset Creek along both directions of I-90, Southeast Eastgate Way and Southeast 36th Street in Bellevue. These bridges will replace culverts that block fish passage on Sunset Creek, allowing natural stream conditions to return in this section of the waterway. Bridge…

Several projects funded through Connecting Washington and partner funds will address the improvement needs on Interstate 90 at the Barker Road interchange, the Harvard Road interchange and local network connections.

Multiple bridge decks have fallen below an acceptable rating. This project will rehabilitate the bridge decks by patching potholes and replacing fatigued sections of bridge decks.

In Spring 2022, contractor crews working for WSDOT will begin replacing the 38 steel anchor cables on the Lacey V. Murrow and Homer M. Hadley Memorial floating bridge across Interstate 90. Work is expected to be complete this fall.

Due to significant growth on the West Plains, three new roundabouts will be constructed at the Geiger/Grove Road interchange with I-90. The reconfigured interchange at Geiger Boulevard and I-90 will provide for more efficient vehicle movement. Improvements include interchange ramp terminal…

The I-90/Judkins Park Station—Reconnecting Communities study will identify and recommend changes to the WSDOT I-90 ramps at Rainier Avenue South to improve safe travel for all modes and increase access to the Judkins Park Link light rail station via transit transfer, walking, and biking.
…

This project sets out to reduce the risk and severity of run-off-the-road collisions throughout the highway corridor by removing vertical rock cuts and outcrops from the median or by shielding the rock with barrier.

This project will rehabilitate the deteriorating concrete bridge deck for the Mullan Road Bridge over I-90. Crews will remove approximately 1.5 inches of existing concrete through hydro-demolition. Once removed, existing reinforcing steel that is exposed will be evaluated to determine the need and…