I-5

Update: Oct. 10, 2024 - I-5 lane closures in Seattle will now include northbound lanes between mid-Boeing Field and the West Seattle Bridge. The updated information is reflected in the release below.

Update: Oct. 9, 2024 - The hours for the I-405 overnight lane reductions and ramp closures have changed. Note the lane closures will occur 8 p.m. Friday, Oct. 11 to 8 a.m. Saturday, Oct. 12. Ramps will be closed from 11 p.m. Friday to 8 a.m. Saturday. This updated information is reflected in the release below.

Additional closures planned in Puget Sound area Sept. 27-30 as part of ‘monster’ weekend of roadwork

FIFE – Setting the second longest pre-cast concrete girders in the world will close both directions of Interstate 5 in Pierce and King counties overnight on Friday, Sept. 27 and Saturday, Sept. 28. This is the first of four consecutive weekends the interstate will be closed overnight between State Route 18 in Federal Way and 54th Avenue East in Fife to build a new bridge and tear down an old one. The remaining overnight closures for I-5 are scheduled for Oct. 4-6, Oct.

Other JBLM gates will remain open during this work

DUPONT - Beginning 5 a.m. Monday, July 29, the Joint Base Lewis-McChord DuPont gate will close to all travelers. The gate will reopen 5 a.m. Monday, Aug. 5

The closure of this gate allows crews to continue to improve access to and from JBLM. The temporary DuPont Gate closure does not affect other JBLM gates.

Work began in early 2023 to build the bridge one half at a time

SEATAC – A new, wider and longer South 216th Street bridge across Interstate 5 in SeaTac will open to both directions of traffic on Wednesday, June 5.

Public input needed on roundabouts and pedestrian and bicycle features

RIDGEFIELD – On June 3, the Washington State Department of Transportation will host an in-person open house to give the public a first look at the future Interstate 5 and 179th Street Interchange Improvements project.

The new interchange will feature two roundabouts. People who attend the in-person open house or participate using a virtual public survey will:

Open house on June 4 offers opportunity to see project plans, review construction progress and speak with staff

FIFE – Community members are invited to attend an in-person open house on Tuesday, June 4 in Fife to learn more about ongoing and planned construction to extend State Route 167 from Puyallup to SR 509 near the Port of Tacoma.

Evening work planned at different sites from March through June

SHORELINE – A project to update and improve the safety of 24 guardrails and barriers across King, Snohomish and Whatcom counties begins mid-March, adding energy-absorbing features to reduce the impacts of crashes.