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This project will rehabilitate both SR 21 and SR 28 within the city limits of Odessa in Lincoln County. The roadway is past its expected lifespan and due for replacement. Along with repaving the roadway, complete streets will be used to look at active transportation within the city limits.

This project will install a compact roundabout at the intersection of SR 282 and Nat Washington Way, to enhance safety and reduce collisions. Installing a roundabout has proven safer than the existing turns and safer than installing traffic signals.

The East Trent Bridge spanning over the Spokane River near Gonzaga University campus is due for replacement. Crews will demolish and rebuild the structure which has stood since 1910.

This project replaced several barriers to fish beneath SR 3 and its southbound on- and off-ramps. The project built new SR 3 bridges over Chico Creek, realigned the on- and off-ramps, built an elevated bridge on Chico Way NW and rerouted Chico Creek beneath SR 3.

Crews will create a new route for SR 3 while maintaining the existing state highway through Belfair as a business loop. The proposed 6-miles of new highway would provide a new option for drivers to travel around and not through Belfair. The new portion of SR 3 is a Limited Access Corridor. A…

This project will remove barriers to fish migration under State Route 3, SR 16 and SR 166 in Kitsap County. New bridges or larger culverts will replace five outdated culverts. Work includes construction of a roundabout at the SR 3 and West Sam Christopherson Avenue intersection.

Workers repaved sections of northbound SR 3 between Bremerton and Silverdale. Repairs also were made at five bridges.

In summer 2022, our contractor began fish barrier corrections to replace two outdated culverts at Little Minter Creek under State Route 302. Since 2019, crews have completed paving and ADA ramp work for eight miles of SR 302 in addition to correcting three identified barriers to salmon and resident…

As part of WSDOT's efforts to remove barriers to fish, this project addresses barriers to fish under SR 302.

There's a lot of work that needs to be done to keep bridges in good working order. This includes regular cleaning and inspection of the Agate Pass Bridge. The bridge, on SR 305, connects Bainbridge Island to the Kitsap Peninsula. We clean the bridge every February to keep dirt and grime from…

This project removed barriers to fish under SR 305 on Bainbridge Island. A culvert was replaced with a new bridge. The work opened almost 1.5 miles of potential habitat on Murden Creek. The creek is a top salmon stream on Bainbridge Island and is a tributary to Murden Cove.

This project removed two existing 270-foot-long, 36-inch-diameter concrete pipe culverts on State Route 305 outside of Poulsbo at the Sam Snyder Creek crossing and replaced them with a single 239-foot-long steel girder bridge. General work activities included: clearing and grubbing, earthwork…

WSDOT built two modern roundabouts on Bainbridge Island at the intersections of SR 305 and Northeast West Port Madison Road/Northeast Seabold Road and SR 305 and Northeast Adas Will Lane. The improvements included curbing and a center median at Agatewood Road Northeast which permanently makes that…

In summer 2021, contractor crews working for WSDOT resurfaced roughly a 25-mile stretch of State Route 4, between Skamokawa and State Route 432 near west Longview, between mileposts 29.77 to 54.98. Project work and highway modifications continued during the 2022 construction season and is now…

State Route 4 is an important connection for Kelso, Longview, and nearby areas in Cowlitz County. It helps people, businesses, and tourists travel between the east and west parts of the county and also leads to the Pacific coast. The area around this route is becoming more urban with increasing…

On Tuesday, Feb. 23, 2021, due to roadway settlement caused by heavy rainfall, both directions of State Route 401 (also known as the Lewis and Clark Trail Highway) between the Astoria-Megler Bridge and Naselle were closed.

In spring 2021, emergency contractor crews were able to…

Contractor crews working for WSDOT installed a 10-foot, corrugated metal pipe under State Route 410 to allow Dry Creek to pass beneath the roadway along its new channel. This is the second part of emergency repairs following a debris flow in fall 2022, which permanently changed the course of Dry…

The SR 410 White River Bridge between Buckley and Enumclaw reopened Friday, Oct. 17, after contractor crews completed repairs. On Aug. 18, 2025, an over-height vehicle struck several of the support beams on the bridge, causing serious damage that required us to close the bridge. After a complete…

Starting in early 2023, contractor crews will kick off the much-anticipated project to enhance the SR 411 Cowlitz River Bridge, also known as the A Street Bridge or the PH-10 Bridge. This vital bridge connects the City of Castle Rock to the west side of the Cowlitz River.

The primary…

In fall 2025 contractors working for WSDOT will begin work to remove and replace a failing culvert underneath SR 411, better known as West Side Highway, just south of Castle Rock, in Cowlitz County.

On Friday, Oct. 24, 2025, construction to replace the failing culvert was completed…

In summer 2023 contactor crews working for the Washington State Department of Transportation resurfaced a nearly 2.5 mile stretch of SR 432 between milepost 7.19 near Industrial Way and milepost 7.19 near the Cowlitz River, in Longview, WA. Crews also resurfaced several off- and on-ramps along…

On Sunday, July 16, 2023, bridge crews fully closed the SR 433 - Lewis and Clark Bridge, also known as the Rainier Bridge, spanning across the Columbia River between Longview, WA, and Rainier, OR, for four days. The closure aimed to replace the steel expansion joints that allowed the structure to…

Beginning in summer 2022, contractor crews from Thompson Bros. Excavating worked to construct a roundabout in east Vancouver, between the intersection of Fourth Plain Boulevard, also known as SR 500 and Northeast 182nd Avenue. Crash data collected over a five-year timeframe between 2013 to 2017…

This project restored the north/south connection across State Route 500 at the Northeast Stapleton Road/Northeast 54th Avenue intersection in Vancouver by constructing a new pedestrian overcrossing that meets the Americans with Disabilities Act. Restoring access across the highway for people who…

Growth and development in eastern Clark County is contributing to an increase in traffic volumes and traffic related crashes along SR 500 - between the Northeast Robinson Road and Northeast 3rd Street intersections. To keep people moving safely, reduce travel times and crashes and to ensure this…

Washington State Department of Transportation’s contractor, Thompson Bros. Excavating, successfully constructed a new shared-use path on the south side of State Route 500, also known as Northeast Fourth Plain Boulevard, between Northeast 162nd and Northeast 166th avenues, allowing those who bike,…

Previously, oversized freight vehicles had to divert from this section of Mill Plain Boulevard (SR 501) onto city streets due to high points in the roadway and limited overhead clearances. Corridor modifications increased safety along the corridor for all modes of transportation. Improvements…

This project improved safety at the intersection of State Route 503 and Northeast Rock Creek Road by installing a compact roundabout. After reviewing five-years of traffic data that included severe injuries, a fatality, and many cases of property damage, this location was identified for improvement…

This project constructed a pedestrian hybrid signal, creating safer access for pedestrians crossing State Route 503 to and from Prairie High School and the nearby transit stop.

On Saturday, Dec. 23, following the installation of a new 48-inch culvert, stabilizing, and back filling the failure area with rock, and reconstructing the roadway, NW Construction General Contracting, Inc., the emergency contractor has successfully restored two lanes of travel, and lifted the…