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This project will remove the weight restrictions and restore the structural integrity of the Mabton bridges.

This project will create four truck climbing lanes, or passing lanes, for vehicles who travel along SR 26 between Dusty and Colfax in Whitman County. Two climbing lanes will be built westbound and two will be built eastbound on SR 26.

This project will improve safety by constructing a roundabout at the intersection of SR 28 and White Trail Rd. west of the City of Quincy.

The Eastside Corridor project will enhance safety and mobility on the Sunset Highway corridor (SR 28), in the East Wenatchee urban area from 9th Street to the Odabashian Bridge. Nearly 15,000 vehicles travel on this stretch of road every day, and as the area continues to grow, conflicts between…

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 is part of WSDOT's ongoing Fish Passage Barrier Removal Program where construction projects remove barriers to fish. The Chico Way/State Route 3 interchange has several barriers to fish under both directions of SR 3 and under the highway's southbound on- and off-ramps. This…

State Route 3 in Belfair regularly experiences congestion during peak commute hours, especially as numerous drivers stop and make turns. Heavy congestion has the potential to negatively affect emergency response times and economic vitality. This project would improve travel times for regional…

During summer 2021, crews repaved State Route 300 between Belfair and Belfair State Park.

Since summer of 2019, contractor crews have continued efforts to replace three outdated culverts under State Route 302 (Key Peninsula Highway) near Purdy for improved fish migration. Work also included repaving nearly eight miles of the highway.

Work at Minter Creek wrapped up in…

The SR 305 Agate Pass Bridge was repainted with a protective coating to prolong the life of this vital bridge.

This project involves several improvements along the SR 305 corridor that were selected based on a performance scoring system, project readiness, and available funding . While the City of Poulsbo is building a roundabout at the intersection of SR 305 and Johnson Road, crews working for WSDOT will…

Starting in late 2020, crews began repairing damaged sections of the rockfall fence along SR 4 from mileposts 46.98 to 47.65 near Oak Point in Cowlitz County.

In summer 2021, contractor crews working for WSDOT will resurface 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.

Due to roadway settlement from heavy rainfall, both directions of State Route 401 (also known as the Lewis and Clark Trail Highway) between the Astoria-Megler Bridge and Naselle are closed. The soil beneath the road near milepost 4.5 is too unstable to allow vehicles safely through and the entire…

Located in Longview, WA, the intersections of SR 432 (Industrial Way) and SR 433 (Oregon Way) are critical connections of statewide significance that supports passenger and freight traffic in southwest Washington.

Currently three rail lines cross with traffic at these intersections…

Crash data over a five-year timeframe between 2013 to 2017 showed most of the crashes occurring along this stretch of highway were rear-end or at-angle crashes. We are beginning work to design a compact roundabout to help improve safety and travel efficiency at the intersection.

We are in the beginning phase of identifying the best way to restore the north/south connection across State Route 500 at the Northeast 54th Avenue/Northeast Stapleton intersection, for people who walk, bike or roll across the highway.

The purpose of this project is to improve safety on SR 500 along the curves at Northeast Robinson Road and Northeast 3rd Street. There is a history of intersection related crashes and run off the road crashes at these two locations.

Currently, oversized freight traffic must 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 will increase safety along the corridor for all modes of transportation. Improvements will…

The SR 509 Completion Project in King County is part of the Puget Sound Gateway Program, which also includes the SR 167 Completion Project in Pierce County. Together, these projects complete two of the Puget Sound region’s most critical freight corridors and improve access to I-5, the ports of…

Crews will build the 3 remaining miles of SR 510 between Cullens Road and 170th Street Southeast in Yelm. The new connection, like the previously built Phase 1, is proposed to be a two-lane highway with bicycle and pedestrian facilities.

In 2021, contractor crews working for WSDOT will replace the more than 20-year-old worn grid deck on the Montlake Bridge. They will also make expansion joint and mechanical repairs so the movable span can continue to operate reliably and meet the growing multimodal traffic demands of northeast…

With this Connecting Washington project, we will relocate the existing eastbound SR 520 ramp to south 148th Avenue Northeast in Redmond and add a new eastbound ramp to the Overlake Village area.

The SR 520 Bridge Replacement and HOV Program enhances travel safety and mobility with modern, structurally stronger bridges, as well as substantial transit and roadway improvements along this urban corridor. Built in stages, the improvements extend from I-405 in Bellevue to I-5 in Seattle.

This project added bus/carpool lanes in both directions between 108th Avenue Northeast in Bellevue and Lake Washington’s eastern shore. The project also built three landscaped, community-connecting highway lids over the highway, two transit stations in the highway median and the first leg of a…

We replaced the world's longest floating bridge – a four-lane, 1960s-era structure – with a safer, six-lane bridge designed to withstand stronger windstorms and waves. Opened in April 2016, the new bridge also added shoulders for disabled vehicles and a separated, 14-foot-wide path for…

The SR 520/I-5 Express Lanes Connection Project will create a dedicated reversible transit and carpool connection between SR 520 and the I-5 express lanes, along with a reversible transit/carpool ramp at the I-5/Mercer Street interchange.

The Montlake Project will improve transportation for both motorized and nonmotorized travel along the corridor with a new SR 520 eastbound bridge over Union Bay. This project also builds a new, three-acre lid covering the highway in Montlake that will include regional transit stops and open green…

The SR 520 floating bridge is supported and stabilized by 77 concrete pontoons . The Pontoon Construction Project built a casting basin and 33 of the bridge’s pontoons in Aberdeen, Washington. We built 44 of the bridge’s smaller pontoons in Tacoma, Washington, as part of the Floating Bridge and…

The Portage Bay Bridge and Roanoke Lid Project will replace the aging Portage Bay Bridge with a seismically resilient structure that includes dedicated transit/carpool lanes and an extension of the SR 520 Trail. This project also builds a landscaped lid between Seattle’s Roanoke Park and North…