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The Washington State Department of Transportation (WSDOT) solicits interest from consultants who wish to be evaluated and considered to provide services related to the design, development, and delivery of Phase 2A and 2B: Phase 2A a new exit from…

This project will remove existing barriers to fish migration at the following US 101 stream crossings and replace with fish-passable structures in compliance with the federal injunction regarding fish passage underneath WSDOT highways:

Mason County (SR 108)
Unnamed Tributary…

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The Washington State Department of Transportation (WSDOT) solicits interest from consultants who wish to be evaluated and considered to provide the services for senior level engineering geology work, hereafter referred to as the CONSULTANT, for…

Remove and replace the aging East Fork Lewis River Bridge located on northbound Interstate 5, at milepost 18.21 - approximately 3 miles south of Woodland, in Clark County.

This project will remove existing barriers to fish migration several US 101 stream crossings and replace with fish-passable structures in compliance with the federal injunction regarding fish passage underneath WSDOT highways. Other elements include, but are not limited to, constructing embankments…

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The Washington State Department of Transportation (WSDOT) solicits interest from consultants who wish to be evaluated and considered to provide general engineering services for the WSDOT Olympic Region (OR).

The Consultant selected…

This project proposes to construct a new approximately 2-mile SR 509 Spur alignment between SR 509 and I-5 supported on embankment, including interchanges at I-5, 54th Avenue East, and SR 509.

This project proposes to construct a new half diamond interchange at NE 132nd Street, new fish passable culverts along the I-405 corridor, and improve local roadway access within project limits.

This project will improve the I-5/SR 529 interchange by adding a new NB off-ramp to SR 529 and a new on-ramp to SB I-5 from SB SR 529. The project will improve NB I-5 travel by adding a new permanent fourth lane for high occupancy vehicles.

The project will replace approximately 29 existing fish barriers along US101 and SR 109 with fish passable structures in Grays Harbor, Jefferson, and Clallam Counties. This project will be delivered in two phases utilizing the PDB delivery method. The Phase 1 will include preliminary engineering to…

The project will construct a four-lane Diverging Diamond Interchange (DDI) at the I-90 and SR 18 interchange in combination with the widening of SR 18 to four lanes to improve traffic operations and safety and reduce congestion at the I-90 and SR 18 interchange and along the SR 18 mainline.

The project will construct a multi-use path between north of Carlisle Avenue and the Columbia Avenue trailhead in Hillyard.

The project will also construct pedestrian bridges over Euclid Avenue, mainline NSC and BNSF railroad (at Garland Avenue), and Wellesley Avenue. This will…

This project will replace the existing fish barrier culvert crossings on I-5 at Padden Creek (MP 250.45 to MP 250.65, WDFW Site 994233) and SR 11 at Padden Creek (MP 20.95 to MP 21.25, WDFW Site 994386) with fish passable water crossing structures.

The purpose of this project is to replace existing fish barrier crossings for Chico Creek and an Unnamed Tributary to Chico Creek with fish passable structures. The barriers are located at SR 3 MP 40.96, SR 3 southbound off-ramp to Chico Way, SR 3 southbound on-ramp, and an SR 3 maintenance access…

The SR 509 Stage 1b is the first major stage of the SR 509 Completion Project, located in King County in the cities of Des Moines, Kent and SeaTac. WSDOT plans to complete construction of the SR 509 Completion Project in two major stages by 2028.

When completed, the project will…

The project will reconstruct US 12 as a Limited Access Full Control four lane divided highway to reduce crash risk and improve economic vitality.

This project proposes to construct a new 70th Avenue bridge crossing over I-5 to improve regional mobility of the transportation system to serve multimodal local and port freight movements.

The Renton to Bellevue project will add new capacity to create a two-lane express toll lane system between SR 167 in Renton and Northeast 6th Street in Bellevue. This project will connect a 40-mile system of express toll lanes that improves speeds and trip reliability for all travelers and supports…

The “Montlake Phase” is one of several projects programmed to replace windstorm- and earthquake-vulnerable structures as well as to improve mobility for people and commerce across Lake Washington and through the SR 520 corridor from Seattle to Redmond. The Montlake Phase project will include:…

This project proposes to construct HOV lanes to provide I-5 HOV connectivity in Pierce County north of SR16 and to construct a new crossing for southbound I-5 over the Puyallup River. Project improvements include, but are not limited to, the following:

Reconstructing sections of I-5…

This project will widen 4.9 miles of I-5 between the interchanges with Steilacoom-DuPont Road (Exit 119) and Gravelly Lake Drive (Exit 124.) This portion of I-5 passes through Joint Base Lewis McChord (JBLM), between the cities of DuPont and Lakewood. The project will include the following:…

This project will demolish the approximately 1.4-mile-long SR 99 Alaskan Way Viaduct (AWV) structure from the vicinity of South Dearborn Street to the south portal of the Battery Street Tunnel. This structure passes through the city of Seattle, adjacent to the waterfront. The AWV was completed in…

The purpose of this project is to remove a fish passage barrier at Coffee Creek on US 101 and replace it with a fish passable Structure. This crossing will be in the vicinity of the current Coffee Creek / US 101 crossing located at US 101 MP 346.95.

Project shall include, but is not…

Realign and reconstruct mainline I-5 between 38th Street and M Street. Replace existing ramps impacted by the I-5 realignment. Construct HOV direct connect ramps between I-5 and SR 16, replace median pavement on SR 16 and open HOV lanes between Union Ave and I-5, construct retaining walls in…

Construct two direct connector ramps, one in each direction, between the SR 167 High Occupancy Toll (HOT) Lane and the I-405 High Occupancy Vehicle (HOV) lane. These ramps connect northbound SR 167 to northbound I-405 and connect southbound I-405 to southbound SR 167.

The SR 99 Bored Tunnel Design-Build Project is intended to expedite the construction of an alternate 4 lane tunnel facility as part of an integrated program consisting of a number of projects to replace the Alaskan Way Viaduct Program.