Search projects
Learn about current transportation network improvement and preservation activities throughout the state.
You might be looking for studies or local agency managed projects
341 results
Project
I-5 - NB Marine View Drive to SR 529 - Corridor and Interchange Improvements
Timeline: 2022 - 2025
To address congestion at the I-5/SR 528 interchange and on I-5 between Everett and Marysville, WSDOT will build a new roundabout at the I-5/SR 529 interchange, add new ramps from I-5 northbound to SR 529 and SR 529 to southbound I-5, and extend the I-5 northbound HOV lane from near US 2 to SR 529.
Project
I-5 - NB Seneca to SR 520 - Mobility Improvements
Timeline: Spring 2021 - Fall 2024
To improve mobility on I-5 through Seattle, we will move barrier on a 1,500-foot section to create three through lanes near Seneca Street, add ramp meters for the Dearborn/I-90 and Cherry Street on-ramps and extend the Active Traffic and Demand Management system north to SR 520.
Project
I-5 - Portland Avenue to Port of Tacoma Road - Northbound HOV - Complete November 2018
Timeline: 2014-2018
This project widened northbound I-5 from Portland Avenue to the Port of Tacoma Road to provide room for one HOV lane. As part of this project, WSDOT rebuilt the northbound I-5 Puyallup River bridge and the ramp to northbound SR 167, improved the Portland Avenue interchange, and repaved a portion of…
Project
I-5 - Portland Avenue to Port of Tacoma Road - Southbound HOV - Completed 2023
Timeline: February 2019 - 2023
This project replaced the 1965 southbound I-5 Puyallup River Bridge. The new bridge is built to current seismic standards and is straighter and wider than the previous bridge.
The project also modified the Port of Tacoma Road on-ramp to southbound I-5, demolished the existing old I-5…
The project also modified the Port of Tacoma Road on-ramp to southbound I-5, demolished the existing old I-5…
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
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 - SB Stillaguamish River Bridge - Painting - Complete Summer 2022
Timeline: December 2020 - Summer 2022
The Stillaguamish River Bridge was in need of new paint to preserve and protect its aging structure. Existing paint on the southbound I-5 bridge was weathered and damaged, allowing corrosion to occur. This bridge preservation project removed old peeling paint, cleaned exposed metal and applied new…
Project
I-5 - Slater Road Interchange - Improvements
Timeline: Winter 2020 - Fall 2024
Contractor crews working on behalf of WSDOT will starting work on the Slater Road corridor north of Bellingham, between Rural Avenue and Interstate 5. WSDOT contractor crews will remove the existing mini roundabout at the intersection of southbound I-5 and Slater Road, re-orientating the ramps to…
Project
I-5 - Snohomish River Bridge Painting - Complete June 2024
Timeline: Summer 2023 - Spring 2024
Corrosion from weather can damage bridges. Beginning in summer 2023, contractor crews cleaned and painted the metal surfaces of the I-5 Snohomish River Bridge in Everett to prevent this. This work will prolong the life of the bridge.
Project
I-5 - SR 16 Realignment - HOV Structure and Connections - Complete December 2019
Timeline: January 2017- December 2019
To increase safety, improve mobility and reduce congestion, WSDOT rebuilt the entire I-5/SR 16 Nalley Valley interchange.
Reconstruction of the interchange was staged to keep people and goods moving. The first two stages of work rebuilt the westbound and eastbound Nalley Valley…
Reconstruction of the interchange was staged to keep people and goods moving. The first two stages of work rebuilt the westbound and eastbound Nalley Valley…
Major Project
I-5 - SR 16 Tacoma/Pierce County HOV Program
Timeline: 2000 to 2022
The Tacoma/Pierce County HOV Program is a series of projects, spanning over 20 years, that build high-occupancy-vehicle (HOV) lanes on I-5, SR 16 and SR 167 in Pierce County.
Project
I-5 - SR 161 - SR 18 Triangle Interchange Vicinity - Improvements
Timeline: 2010-TBD
This project has been suspended. There is no timeline for when it may resume.
Project
I-5 - SR 528 - Marine Drive and 88th St. NE Interchanges - Tulalip Tribes lead
Timeline: 2019-2025
The Marine Drive and 88th Street Northeast interchanges near Marysville are frequently congested, with traffic backing up onto I-5. They're also two of only three access points to the Tulalip Tribes reservation. The Tribes are leading this project to improve access and mobility at the…
Project
I-5 - Steilacoom-DuPont Rd. to Thorne Lane - Corridor Improvements - Complete September 2021
Timeline: Fall 2018 - Fall 2021
To relieve chronic traffic congestion and improve mobility along Interstate 5 in the vicinity of Joint Base Lewis-McChord, WSDOT is rebuilding the interchanges at Thorne Lane and Berkeley Street and adding lanes to I-5. Once construction is finished, the new lane in each direction on I-5 will open…
Project
I-5 and SR 11 Padden Creek - Fish Passage - Complete Fall 2022
Timeline: Fall 2019 - Fall 2022
WSDOT will construct this project through the design build process, removing two fish barriers, one under SR 11 at 30th Street, the other under Interstate 5, south of the SR11/Old Fairhaven Parkway on- and off-ramps and replacing them with fish passable structures. Additional improvements will be…
Project
I-5 East Fork Lewis River NB Bridge - Replacement
Timeline: 2020 - 2028
This is a preservation project that will remove and replace the northbound I-5 East Fork Lewis River Bridge, located south of Woodland in Clark County. This bridge crosses over the East Fork of the Lewis River, Paradise Point State Park and Northwest Toenjes Road, near milepost 18.21.
Project
I-5 Kincaid Sign Structure Replacement - Complete October 2022
Timeline: Summer 2022
This project replaced the existing sign bridge on southbound Interstate 5 at Kincaid Street (exit 226) in Mount Vernon that was previously damaged.
Project
I-5 Marvin Rd to Mounts Rd Planning and Environmental Linkage/NEPA
Timeline: 2023-2026
This project began with a federal Planning and Environmental Linkages (PEL) study focused on Interstate 5 from Marvin Road to Mounts Road. The PEL considered additional technical analyses and stakeholder input to arrive at a final purpose and need and recommended alternatives to study in the…
Project
I-5 NB/SB North Fork Lewis River Bridge – Bridge Deck Repair & Overlay
Timeline: Spring 2023 - Fall 2024
This project repaired the bridge deck, modified expansion joints and installed a polyester concrete overlay on both I-5 northbound and southbound bridges over the North Fork Lewis River. Structural steel repairs were made on the southbound bridge. Travelers enjoy a smoother and safer driving…
Project
I-5 Southbound Joe Leary Slough to Nulle Road Vic Concrete Rehabilitation - Complete September 2023
Timeline: May 2023 - September 2023
Along a 12-mile stretch of southbound Interstate 5 in Whatcom and Skagit counties between milepost 243 just north of Nulle Road to milepost 231 near the State Route 11/Chuckanut Drive interchange the pavement was worn, and the pavement was full of cracks, ruts and potholes along the highway. The…
Project
I-5 Southbound Samish River Bridge Deck Overlay - Complete August 2022
Timeline: Winter 2021 - Fall 2022
This preservation project will replace the top portion of the deteriorating bridge deck of the Samish River Bridge located on I-5 southbound at milepost 234. Crews will replace the worn surface with a new polyester deck overlay. The paved panel joint seals will also be replaced.
Project
I-5 – Dike Access Road Bridge Deck and Expansion Joints
Timeline: Spring 2024 - Summer 2024
In spring 2024, contractor crews will begin work to improve the southbound lanes of the I-5 Dike Access Road Bridge that spans over Dike Access Road and the railroad bridge, just north of Woodland, in Cowlitz County, WA.
Project
I-5 – Koontz Road Bridge – Emergency Bridge Repair
Timeline: Nov. 2021 - Dec. 2023
On Sunday, Nov. 14, 2021, an over height load was traveling northbound on I-5 when it struck and damaged the northbound span of Koontz Road overpass, located between milepost 69.35-69.48, in Lewis County.
Following the bridge strike, WSDOT bridge crews assessed the damage and…
Following the bridge strike, WSDOT bridge crews assessed the damage and…
Project
I-5 – SW Parkland Drive to Harrison Ave – Ramp Meters (Chamber Way -stage 2)
Timeline: Summer 2024 - Spring 2025
To ensure smooth travel for both commuters and cargo across Washington State, contractor crews will implement an advanced technology system. This system optimizes the existing roadway infrastructure to alleviate congestion, enhance safety, and ensure reliable trips along the I-5 corridor in Lewis…
Project
I-5/54th Ave to N of 20th St E - HMA Replacement and Paving
Timeline: August 2024 - September 2024
In September 2024, WSDOT replaced worn asphalt on the south side of the 54th Avenue overpass at Interstate 5 in Fife. Preservation paving included the northbound I-5 off- and on-ramps.
Project
I-5/Duwamish River to S Lucile St – Concrete Pavement Rehab
Timeline: Summer 2023 - late 2024
We will rehabilitate both directions of Interstate 5 between the Duwamish River and Lucile Street in Seattle. To do this, we will replace some of the panels, grind the highway to eliminate high spots and repair the expansion joints on the northbound and southbound I-5 overpasses above Military Road…
Project
I-5/I-205 - Concrete Panel Replacement and Joint Rehabilitation - Complete Fall 2023
Timeline: Spring 2022 - Fall 2023
In summer 2022 and 2023, WSDOT's contractor, Granite Construction, replaced roughly 100 concrete panels along both directions of I-205 between the Glenn Jackson Bridge near the SR 14 interchange and the I-5/I-205 split and along southbound I-5 between Northeast 179th Street and the I-5/I-205…
Project
I-5/I-205 - Ramp Meter Installation
Timeline: July 2023 - Fall 2024
Starting in Summer 2023, WSDOT contractor crews will install new ramp meters at several on-ramps along northbound Interstate 5 and southbound Interstate 205 in Clark County.
Ramp meters, a type of traffic signal, are employed to regulate the rate at which vehicles enter the freeway…
Ramp meters, a type of traffic signal, are employed to regulate the rate at which vehicles enter the freeway…
Project
I-5/I-205 SB to Ridgefield – Concrete Panel Replacement
Timeline: March 2024 - October 2024
Starting in summer 2024 , WSDOT's contractor will replace several of the most damaged concrete panels on southbound Interstate 5 between Ridgefield and the I-5/I-205 split.
This section of I-5 is made up of 8,400 concrete panels. Hundreds of which have cracked, settled and…
This section of I-5 is made up of 8,400 concrete panels. Hundreds of which have cracked, settled and…
Project
I-5/McAleer Creek Fish Passage
Timeline: Spring 2023 - Summer 2028
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.
Three culverts in the…
Three culverts in the…
Project
I-5/NB 12th Street NE Bridge – Girder Replacement - Complete Winter 2023
Timeline: August 2022-winter 2023
During fall 2022, contractor crews replaced the damaged girder on the 12th Street Bridge over Interstate 5 between Everett and Marysville. In addition to replacing the girder, part of the bridge deck and barrier were rebuilt.
166,800 electric vehicle
registrations in Washington in 2023, up from 114,600 in 2022.
87 wetland compensation sites
actively monitored on 918 acres in 2023.
25,000 safe animal crossings
in the Snoqualmie Pass East Project area since 2014.