ALERT: View the weekly vibratory casing installation schedule (Last updated July 2, 2026)

Montlake Boulevard closures are coming this summer for sign structure updates.

Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed overnight July 9

Date: July 9, 2026 to July 10, 2026

Time: 10 p.m. Thursday to 6 a.m. Friday

Activity details:

Ramp closure

Impact type:

OvernightTrafficNoise

Description: Crews will use this closure to remove graffiti and complete other work around the ramps. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project.

Traffic: The westbound SR 520 off-ramp to both northbound I-5 and East Roanoke Street will close for construction maintenance beginning at 10 p.m. on Thursday, July 9, until 6 a.m. Friday, July 10.

During this time, all westbound SR 520 travelers coming from the eastside wanting to go north must exit at either Montlake Boulevard or Lake Washington Boulevard. Drivers who stay on westbound SR 520 beyond those exits will be detoured to southbound I-5.

Contact Info

Email:  sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520