SR 167 Corridor Improvements Project

Project overview

The SR 167 Corridor Improvements Project is comprised of the SR 167 Toll Equipment Upgrade Project and the SR 167, SR 516 to South 277th Street Southbound Auxiliary Lane Project. As part of the SR 167 Toll Equipment Upgrade Project, we plan to update the SR 167 toll system to create consistency along the I-405/SR 167 corridor. This project would upgrade the SR 167 toll equipment to be the same as the I-405 toll equipment, resulting in a continuous 50-mile I-405/SR 167 express toll lane system and a consistent customer experience in the express toll lanes. We also plan to construct an auxiliary lane on southbound SR 167 between SR 516 and South 277th Street in Kent.

Once the project is complete, travelers will experience new, modern SR 167 express toll lanes that tie into the Renton to Bellevue I-405 express toll lane system, currently under construction, and the express toll lanes to Lynnwood, which opened to the public in 2015. The long-term vision includes a 50-mile express toll lane system between SR 512 in Puyallup and the I-405/I-5 interchange in Lynnwood.

Timeline

Oct. 2023 - Aug. 2026

Project status

Construction

Funding

Approximately $102 million

Project hotline

425-456-8585

What to expect

Upcoming work

Highway lane closures:

Thursday, May 1 to the morning of Friday, May 2: All lanes of northbound and southbound SR 167 from South 212th Street to South 180th Street will be closed nightly, from 10:00 p.m. – 4:00 a.m.
Monday, April 28 to the morning of Saturday, May 3: Up to two lanes of northbound SR 167 from WA-410 (milepost 7.1) to I-405 (milepost 25.7) will be closed nightly, from 7:00 p.m. – 5:00 a.m.
Monday, April 28 to the morning of Saturday, May 3: Up to two lanes of southbound SR 167 from I-405 (milepost 26.0) to 24th Street East (milepost 10.3) will be closed nightly, from 8:00 p.m. – 9:00 a.m.

Highway ramp closures:

Thursday, May 1 to the morning of Friday, May 2: The South 212th Street on-ramp northbound SR 167 will be closed nightly, from 10:00 p.m. – 4:00 a.m.
Thursday, May 1 to the morning of Friday, May 2: South 212th Street on-ramp southbound SR 167 will be closed nightly, from 10:00 p.m. – 4:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The northbound SR 167 off-ramp to Stewart Road Southeast will be closed nightly, from 10:00 p.m. – 3:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The northbound SR 167 off-ramp to Ellingson Road will be closed nightly, from 10:00 p.m. – 3:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The Stewart Road Southeast on-ramp to northbound SR 167 will be closed nightly, from 10:00 p.m. – 3:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The SR 516 on-ramp to northbound SR 167 will be closed nightly, from 10:15 p.m. – 3:15 a.m.
Monday, April 28 to the morning of Saturday, May 3: The northbound SR 167 off-ramp to South 180th Street will be closed nightly, from 10:00 p.m. – 3:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The southbound I-405 on-ramp to the southbound SR 167 flyover ramp will be closed nightly, from 11:59 p.m. – 5:00 a.m.
Monday, April 28 to the morning of Thursday, May 1, and Friday, May 2 to the morning of Saturday, May 3: The southbound SR 167 off-ramp to South 212th Street on-ramp will be closed nightly, from 10:00 p.m. – 5:00 a.m.
Monday, April 28 to the morning of Tuesday, April 29: The Ellingson Road on-ramp to southbound SR 167 will be closed nightly, from 10:00 p.m. – 5:00 a.m.

Map of SR 167 with a highlighted section where construction will take place.

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The SR 167 Corridor Improvements Project is comprised of the SR 167 Toll Equipment Upgrade Project (shown in orange) and the SR 167, SR 516 to South 277th Street Southbound Auxiliary Lane Project (shown in green).

History and background

We are upgrading the SR 167 toll system because the current toll equipment is reaching the end of its operating life. SR 167 users will experience several benefits with the upgraded toll system, including new payment options, new toll rate signs for destination-based toll pricing, and double white buffer lines between the general purpose and express toll lanes in select areas.

The project will improve operations on SR 167 by creating a consistent toll system on the entire I-405/SR 167 corridor. The addition of photo tolling will give more drivers the option to choose express toll lanes on SR 167, including those without accounts. Motorists will be able to transition seamlessly from the I-405 to the SR 167 express toll lanes, a significant milestone in providing continuity and reliable travel options along the corridor.

Re-striping the SR 167 lanes will improve reliability for SR 167 drivers by allowing motorists to enter the toll lanes only in certain areas, which keeps traffic moving. We will install signage to notify drivers of upcoming exits to ensure that drivers have enough space to exit the roadway.

The project will create a new auxiliary lane in the southbound direction between the SR 516 and South 277th Street interchanges to address operational challenges on SR 167 between these interchanges. Currently, heavy on ramp and off ramp volumes at these interchanges cause a bottleneck on SR 167. The auxiliary lane will reduce congestion by smoothing heavy merging and diverging vehicles between these interchanges, and improving area traffic operations and safety performance.

There will be minimal construction impacts to the traveling public as this project use shoulder pavement with minor widening within the existing right of way.

Milestone

Oct. 2023

Construction activities begin

Spring 2025

Toll rollout

Fall 2025

Open to traffic

Jan. 2026

Substantial project completion

Community Meetings

Spring 2025, Quarterly Community meeting - April 3, 2025
On Thursday, April 3, the project team hosted its quarterly project update meeting. The meeting focused on project schedule, current construction progress and upcoming work, outreach and notifications, upcoming overnight SR 167 closures, and how the public can stay informed and contact the project team. There was also a question-and-answer segment at the end of the presentation.

Winter 2024, Quarterly Community Meeting - Dec. 20, 2024
On Tuesday, Dec. 20, the project team hosted its quarterly project update meeting. The meeting focused on project schedule, current construction progress and upcoming work, and how the public can stay informed and contact the project team. There was also a question and answer segment at the end of the presentation.

Summer 2024, Quarterly Community Meeting - July 31, 2024
On Wednesday, July 31, the project team hosted its quarterly project update meeting. The meeting focused on project schedule, current construction progress and upcoming work, and how the public can stay informed and contact the project team. There was also a question and answer segment at the end of the presentation.

Spring 2024, Quarterly Community Meeting - March 20, 2024
On Wednesday, Jan. 24, the project team hosted its quarterly project update meeting. The meeting focused on project schedule, current construction progress and upcoming work, and how the public can stay informed and contact the project team. There was also a question and answer segment at the end of the presentation.

WSDOT

I-405/SR 167 Corridor Program

The SR 167 Toll Upgrade project is one project that makes up the I-405/SR 167 Corridor Program.

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SR 167 Corridor Improvements Project

Project overview

What to expect

Upcoming work

History and background

Community Meetings

WSDOT

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