Eastbound SR 520 off-ramp to Montlake Blvd. in Seattle closed nightly Sept. 2 & 3 Date: Sept. 2, 2026 to morning of Sept. 4, 2026 Time: 10 p.m. to 6 a.m. nightly Activity details: Ramp closure Impact type: NighttimeOvernightTrafficNoise Description: Crews will use these nightly closures to re-align the temporary concrete barriers along the ramp and prepare for the upcoming weeklong closure of the ramp on Sept. 12. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project. Traffic: The eastbound SR 520 off-ramp to Montlake Boulevard will close for construction beginning at 10 p.m. until 6 a.m. nightly on Sept. 2 and 3. All traffic from I-5 that enters eastbound SR 520 during these hours will pay the SR 520 Bridge Toll. Those who do not want to pay the toll or who need to access Montlake Boulevard from I-5 must take alternate routes. 9/3/26 Update: The ramp closure for Sept. 3 is canceled. This ramp will remain open. Closures Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed most weeknights Eastbound SR 520 off-ramp to Montlake Boulevard closed nightly Nov. 7 and 8 East Roanoke Street alley closed between East Edgar Street and Boyer Avenue East Oct. 28-30 and Nov. 2-6 Westbound SR 520 closed between Montlake Boulevard and I-5 Nov. 13-16 Long-term closures Weekday parking restrictions near Fuhrman Ave. for staging site begin June 15 Boyer Avenue East reduced to a single lane between East Roanoke Street and Everett Avenue East July 20 – Nov. 20 Activities Portage Bay piledriving schedule: Week of Oct. 26 – Nov. 1 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
