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91 results

Project

2023-24 Northwest Regional Pavement Repairs and Breakaway Cable Terminal

Timeline: Fall 2023 - Spring 2025
  • Road
  • Construction
  • King County
  • Snohomish County
  • Whatcom County
A regional project beginning in March 2024 updated 24 guardrails and attenuators along Interstates 5, 90 and 405, US 2 and State Routes 522 and 527 in King, Snohomish and Whatcom counties. The breakaway cable terminals, or guardrail protective end caps, face oncoming traffic. This project also…
Project

Battery Street Tunnel and North Surface Streets - Complete July 2021

Timeline: February 2019 - July 2021
  • Road
  • Completed
  • King County
After SR 99 in Seattle was aligned to run through the SR 99 tunnel, the Battery Street Tunnel was decommissioned and filled and the tunnel's northern approach built into a new arterial street (Seventh Avenue North) featuring bus lanes and reconnected intersections.
Project

Ferries - Seattle Multimodal Terminal at Colman Dock Project

Timeline: Summer 2017-2024
  • Ferry
  • Construction
  • King County
Washington State Ferries is replacing the aging and seismically vulnerable Colman Dock in Seattle to maintain its critical role as a regional multimodal transportation hub.

Key project elements include: a concrete and steel trestle, main terminal building, entry building (with retail…
Project

I-405 - BN RR Br to Ped Trail Br & I-90/E Fork Issaquah Creek - Seismic

Timeline: Summer 2022- Spring 2024
  • Road
  • Construction
  • King County
In winter 2023, our contractor began a project on the I-405 corridor, in Tukwila and Bellevue, to strengthen several overpasses so they can better withstand a major earthquake. They will place steel "jackets" around columns that support overpasses to help keep the concrete together in an…
Project

I-405/Brickyard to SR 527 Improvement Project

Timeline: The project is expected to complete construction in 2028 in alignment with Sound Transit Bus Rapid Transit.
  • Road
  • Construction
  • King County
The I-405/Brickyard to SR 527 Improvement Project enhances four and a half miles of the corridor, primarily in Bothell, from just south of the State Route 522 interchange and ending at the SR 527 interchange. WSDOT, Sound Transit and design-build contractor Skanska USA Inc., will deliver…
Project

I-405/Lind Ave SW Bridge – Span replacement - Complete May 2024

Timeline: Completed
  • Road
  • Completed
  • King County
In fall 2023, contractor crews started construction to replace the damaged northern span of the Lind Avenue Southwest bridge over southbound Interstate 405 in Renton. The Lind Avenue overpass is now back open.
Project

I-405/Northeast 132nd Street Interchange Project

Timeline: Spring 2022 - Spring 2024
  • Road
  • Completed
  • King County
WSDOT and design-build contractor Graham Contracting, Ltd. constructed a new on-ramp to northbound I-405 and a new off-ramp from southbound I-405 at Northeast 132nd Street in Kirkland. This type of interchange is known as a half-diamond. Travelers now have the option to access I-405 at Northeast…
Project

I-405/Northeast 85th Street Interchange and Inline BRT Station Project

Timeline: December 2022 - January 2027
  • Road
  • Construction
  • King County
WSDOT, Sound Transit, and design-build contractor Graham Contracting, Ltd. are working to reconstruct and improve the I-405/Northeast 85th Street interchange. This project design supports Sound Transit's Stride Bus Rapid Transit (BRT), improves transit connections on Northeast 85th Street, and…
Project

I-405/Renton to Bellevue Widening and Express Toll Lanes Project

Timeline: 2015 - 2025
  • Road
  • Construction
  • King County
Travelers on Interstate 405 between Renton and Bellevue experience one of the state’s worst commutes. The I-405/Renton to Bellevue Widening and Express Toll Lanes project includes multimodal transportation and safety improvements to offer more reliable travel choices and keep drivers, transit…
Project

I-405/Ripley Lane Stream Connection Project

Timeline: The project is currently in the design and environmental stages.
  • Road
  • Pre-construction
  • King County
The Ripley Lane Stream Connection Project is part of a series of fish barrier removals planned by WSDOT for the I-405/SR 167 corridor. The Ripley Lane Stream Connection Project will construct new stream channels by combining two culverts into one open channel. We determined that the proposed…
Project

I-5 - NB Seneca to SR 520 - Mobility Improvements - Complete November 2024

Timeline: Spring 2021 - Fall 2024
  • Road
  • Completed
  • King County
We improved mobility on I-5 through Seattle by moving barrier on a 1,500-foot section and creating three through lanes near Seneca Street, adding ramp meters for the Dearborn/I-90 and Cherry Street on-ramps and extending the Active Traffic and Demand Management system north to SR 520.
Project

I-5 - SB S Spokane St to I-90 W-S Ramp - Deck Overlay & Expansion Joints - Complete March 2023

Timeline: May 2021 - Winter 2023
  • Road
  • Completed
  • King County
This two-year rehabilitation project replaced 56 expansion joints and repaved 1.25 miles of southbound I-5 between I-90 and Spokane Street. This project is one of dozens that make up Revive I-5, which will rehabilitate the I-5 corridor in the King County area in the next 10 years.
Project

I-5 - SR 161 - SR 18 Triangle Interchange Vicinity - Improvements

Timeline: 2010-TBD
  • Road
  • Pre-construction
  • King County
This project has been suspended. There is no timeline for when it may resume.
Project

I-5/Duwamish River to S Lucile St – Concrete Pavement Rehab - Complete October 2024

Timeline: Summer 2023 - October 2024
  • Road
  • Completed
  • King County
We rehabilitated both directions of Interstate 5 between the Duwamish River and Lucile Street in Seattle. Crews replaced hundreds of panels, completed grinding on the highway to eliminate high spots and repaired the expansion joints on the northbound and southbound I-5 overpasses above Military…
Project

I-5/McAleer Creek Fish Passage

Timeline: Winter 2021 - Spring 2028
  • Road
  • Pre-construction
  • King County
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…
Project

I-5/Northgate Way & Maple Rd Bridges – Seismic Retrofit - Complete September 2023

Timeline: Summer 2022 – summer 2023
  • Road
  • Completed
  • King County
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…
Project

I-5/SB East Edgar St to East Gwinn Place Noise Wall - Complete March 2025

Timeline: Spring 2024 – Spring 2025
  • Road
  • Completed
  • King County
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…
Project

I-5/Seattle - Enhanced Ramp Metering - Complete February 2024

Timeline: Winter 2022 - Winter 2024
  • Road
  • Completed
  • King County
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…
Project

I-5/Ship Canal Bridge Stormwater Treatment Facility - Pre-Design

Timeline: Fall 2024 - Summer 2028
  • Road
  • Pre-construction
  • King County
This project will build a stormwater treatment facility beneath the north end of the I-5 Ship Canal Bridge. This facility will capture, carry, and clean stormwater runoff from I-5 by removing harmful pollutants before the water flows into the ship canal.
Project

I-5/SR 523 Interchange Improvement

Timeline: 2020 - 2025
  • Road
  • Pre-construction
  • King County
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…
Project

I-5/Thornton Creek to Lake Washington Fish Passage

Timeline: Summer 2026 - Fall 2029
  • Road
  • Pre-construction
  • King County
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…
Project

I-5/Unnamed Tributary to Penny Creek and Silver Lake Fish Passage

Timeline: Summer 2027 - Winter 2030
  • Road
  • Pre-construction
  • King County
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-…
Project

I-5/Yesler Way to Northgate Vic - Pavement, Deck, Joints and Drainage

Timeline: 2020 - 2027
  • Road
  • Construction
  • King County
WSDOT built Interstate 5, Washington’s main freeway, in the 1960s. The busiest section runs through Seattle with almost 240,000 vehicles traveling across the I-5 Ship Canal Bridge daily. This critical highway now requires major preservation and repairs.

Working with our contractor,…
Project

I-90 - Eastgate to SR 900 - Corridor Improvements - Complete Spring 2023

Timeline: August 2019 - Spring 2023
  • Road
  • Completed
  • King County
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.
Project

I-90 - Sunset Creek - Fish Passage

Timeline: 2023 - 2027
  • Road
  • Construction
  • King County
WSDOT is building bridges over Sunset Creek in Bellevue 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…
Project

I-90 Judkins Park Station – Reconnecting Communities

Timeline: 2023-2027
  • Road
  • Pre-construction
  • King County
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.
Project

I-90 Soderman Creek/SR 202 Unnamed Tributary to Patterson Creek - Fish Passage

Timeline: Fall 2021 – Fall 2030
  • Road
  • Pre-construction
  • King County
Several blocked culverts below Interstate 90 and State Route 202 in east King County are a barrier to fish migration and will be replaced with new, larger culverts beginning in 2025. Contractor crews working for WSDOT will replace three culverts under I-90 in Preston and one culvert under SR 202…
Project

I-90 – Lewis, W. Village Park, Schneider Creeks – fish passage projects

Timeline: 2020 to 2029
  • Road
  • Pre-construction
  • King County
Reconnecting waterways where our roads act as barriers is a priority for the state. In western Washington, that means building hundreds of fish passable structures under state highways to create habitat essential for meeting fish recovery goals. Beginning in 2025, WSDOT will build multiple…
Project

I-90 – SR 18 Interchange Improvements

Timeline: 2022 - 2025
  • Road
  • Construction
  • King County
Growth in Snoqualmie Valley has made the I-90/SR 18 interchange one of the busiest in the state, causing backups during peak times and busy travel weekends. To improve traffic flow, WSDOT is building a diverging diamond interchange and adding two lanes on SR 18 between the interchange and Deep…
Project

I-90, SR 202, SR 203 & SR 900 – Adaptive Management

Timeline: Summer 2025 - Summer 2026
  • Road
  • Pre-construction
  • King County
The project has four locations: Interstate 90 at Issaquah Creek and tributaries, State Route 202 at Little Bear Creek, SR 203 at Thayer Creek, and SR 900 at Green Creek. Each project will enhance fish habitat and allow for fish passage by adding meander bars, modifying stream bed material,…

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.