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Learn about current transportation network improvement and preservation activities throughout the state.
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204 results
Project
SR 401 - 2.3 Miles S. of Bean Creek Bridge - Slope Stabilization
Timeline: February 2021 - Late 2022
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…
In spring 2021, emergency contractor crews were able to…
Project
SR 411 Cowlitz River Bridge – Replace Bridge Deck
Timeline: June 2022 - February 2023
This project will replace the concrete bridge deck, sidewalk, barrier, and handrail to extend the service life of the bridge and improve safety. The city will also use this opportunity to replace or upgrade city owned utilities on the bridge.
Project
SR 432 (Industrial Way) - SR 433 (Oregon Way) - Intersection Improvements
Timeline: 2017 - 2023
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…
Currently three rail lines cross with traffic at these intersections…
Project
SR 500 - NE 182nd Ave - Intersection Improvements
Timeline: Spring 2021 - Fall 2022
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.
Project
SR 500 - NE 42nd and 54th Intersection Improvements
Timeline: Spring 2021 - Winter 2022
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.
Project
SR 500 - NE Robinson Rd and NE 3rd St - Intersection Safety Improvements
Timeline: Summer 2018 - Fall 2022
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.
Project
SR 501 - I-5 to Port of Vancouver - Intersection and Profile Improvements
Timeline: Spring 2019 - Fall 2021
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…
Project
SR 503 / NE Rock Creek Rd Intersection Improvements
Timeline: Spring - Fall 2023
This project will improve safety at the intersection of SR 503 and NE Rock Creek Road by installing a compact roundabout.
Project
SR 509 Completion Project
Timeline: 2015-2028
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…
Project
SR 510 - Yelm Loop - New Alignment Phase 2
Timeline: Summer 2023 - Summer 2026
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.
Project
SR 513 - Montlake Bridge - Mechanical Rehab, Deck Replacement & Joint Repair
Timeline: Summer 2021 - Spring 2022
In 2021, contractor crews working for WSDOT replaced the more than 20-year-old worn grid deck on the Montlake Bridge. They also made expansion joint and mechanical repairs so the movable span can continue to operate reliably and meet the growing multimodal traffic demands of northeast Seattle. In…
Project
SR 516/Barnes Creek fish passage
Timeline: 2021-2023
At just 2 feet in diameter and built from clay, the culvert that carries Barnes Creek under SR 516 near Des Moines is a barrier for fish trying to swim upstream and is in danger of failing. This project will replace the small clay culvert with a new structure that is 20 feet wide and 9 feet tall,…
Project
SR 520 148th Ave NE interchange - Overlake Access Ramp
Timeline: Summer 2021-Fall 2023
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.
Major Project
SR 520 Bridge Replacement and HOV Program
Timeline: 2011 - 2030
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.
Project
SR 520 Eastside Transit and HOV Project
Timeline: Construction began 2011; completed in 2015
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…
Project
SR 520 Floating Bridge and Landings Project
Timeline: Bridge construction began in spring 2012 and was completed in summer 2017.
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…
Project
SR 520 I-5 Express Lanes Connection Project
Timeline: August 2021 - 2024
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.
Project
SR 520 Montlake Project
Timeline: Summer 2019 - 2023
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…
Project
SR 520 Pontoon Construction Project
Timeline: Construction of the casting basin and pontoons began in Aberdeen in 2011. Pontoon construction ended in spring 2015.
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…
Project
SR 520 Portage Bay and Roanoke Lid Project
Timeline: Estimated 2024-2030
The Portage Bay Bridge and Roanoke Lid Project will replace the aging Portage Bay Bridge with a seismically resilient structure that includes improved bus/carpool travel and an extension of the SR 520 Trail. This project also builds a landscaped lid between Seattle’s Roanoke Park and North Capitol…
Project
SR 520 West Approach Bridge North Project
Timeline: Construction began in September 2014 and finished in December 2017.
The West Approach Bridge North Project extended SR 520’s three westbound lanes, including a transit/HOV lane, from the new floating bridge to Seattle’s Montlake neighborhood. It also expanded the new SR 520 Trail across Lake Washington to Seattle.
Project
SR 520/124th Avenue NE Interchange Project
Timeline: This project is currently in the preliminary engineering stage.
We are examining solutions to reduce congestion at the I-405/SR 520 interchange. Currently, over half the trips from westbound SR 520 are traveling to the Bellevue vicinity. A new project will allow westbound drivers the option to access the downtown Bellevue vicinity by exiting SR 520 onto 124th…
Project
SR 522 - I-5 to 61st Ave NE - Paving & ADA Compliance
Timeline: Spring 2020 to Fall 2021
WSDOT contractor crews will repave sections of SR 522, commonly known as Lake City Way or Northeast Bothell Way, which were last paved in 2002.
Project
SR 522 - Paradise Lake Rd to Snohomish River Br - Interchange & Widening
Timeline: 2017 - 2025
SR 522 in Snohomish County is an increasingly important north-south route connecting communities between Woodinville and Monroe. One section between Paradise Lake Road in Maltby and the Snohomish River remains one-lane in each direction. We plan to widen the highway to two lanes in each direction,…
Project
SR 525 — Clinton Ferry Terminal Vicinity — Pedestrian Connectivity
Timeline: November 2021 - Fall 2022
This connectivity project will improve the pedestrian access route on State Route 525 in Clinton from the Park & Ride at Deer Lake Road (milepost 8.96) to the Washington State Ferries — Clinton Ferry Terminal (milepost 8.51).
Plans call for new sections of sidewalk, crosswalks,…
Plans call for new sections of sidewalk, crosswalks,…
Project
SR 526 - Corridor Improvements
Timeline: Spring 2017 - Winter 2023
Portions of the State Route 526 corridor will be improved with construction of an eastbound lane between Seaway Boulevard and I-5, improved signal operations at the SR 526/527 intersection and new ramp meters from eastbound SR 526 to northbound I-5.
Project
SR 527 - Penny Creek - Fish Passage
Timeline: Fall 2022 - Fall 2023
As part of WSDOT’s fish passage program, we will build a 26-foot fish-passable structure under SR 527 just south of 164th Street Southeast in Mill Creek. The current 9-foot culvert causes water to flow too fast for fish to continue upstream. The new bridge span will open more than 8 miles of…
Project
SR 531 - 43rd Ave NE to 67th Ave NE - Widening
Timeline: July 2019 - Fall 2024
This section of SR 531 between 43rd Avenue Northeast and 67th Avenue Northeast in Arlington will be widened to add a second lane in each direction. In addition, roundabouts will be added at four intersections to improve safety, travel times and reduce congestion.
Project
SR 538 - Logan Creek Fish Passage
Timeline: Summer 2019 - Spring 2022
This project provides for the improvement of Logan Creek fish passage along SR 538 in Mount Vernon located in Skagit County by replacing the existing culvert with a new buried fish passage structure.
Project
SR 544 Unnamed Tributary to Fourmile Creek Fish Passage
Timeline: Fall 2021 - Fall 2022
This project will remove the existing barrier where an Unnamed Tributary to Fourmile Creek crosses under State Route 544 at milepost 3.51, just west of Noon Road. This location is about two miles west of Everson and 3.5 miles south of Lynden in Whatcom County.
Zero emission electric vehicle registrations in Washington
increased 192% between 2017 and 2021.
45 projects to improve freight rail structures and freight movement
were underway as of December 31, 2021.
Washington state leveraged $100,000 to secure $27 million
in funding for airport investments in Fiscal Year 2022.