I-5

Project will remove 17 barriers along Friday, Lake and Chuckanut creeks 

BELLINGHAM – A three-year project to remove 17 barriers to fish migration along a 6-mile stretch of Interstate 5 in Skagit and Whatcom Counties will begin construction Wednesday, April 30. 

Contractor crews working on behalf of the Washington State Department of Transportation will begin overnight work on I-5 south of Bellingham at 8 p.m. Wednesday, April 30.

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.