I-5

BELLINGHAM – A major effort to restore fish passage under both directions of Interstate 5 begins in late April between Bellingham and Burlington.

Crews will set girders for a new overpass at Steilacoom-DuPont Road April 4, 5, 11 and 12

DUPONT – If April showers bring May flowers, then April girder setting will bring a new overpass, eventually, to a heavily used Interstate 5 intersection in DuPont. Nighttime travelers who use I-5, or the Steilacoom-DuPont Road overpass in DuPont, will see some delays and detours in April.

Existing ramp on the right side of eastbound SR 516 will close for four months on Feb. 18

KENT – Drivers on eastbound State Route 516 in the Kent, Des Moines and SeaTac area need to be prepared for a temporary change in how they enter northbound Interstate 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.