Eastbound SR 520 closed between I-5 and Montlake Blvd. in Seattle May 29 – June 1 Date: May 29, 2026 to June 1, 2026 Time: 11 p.m. Friday to 5 a.m. Monday Activity details: Partial highway closureRamp closureHigh-impact construction Impact type: Around-the-clock Description: Crews will use the closure to prepare for an upcoming traffic switch of the eastbound off-ramp to Montlake Blvd. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project. Learn more about this traffic shift on our latest blog post. Traffic: Eastbound SR 520 and all associated on- and off-ramps between I-5 and Montlake Blvd. in Seattle will close for construction beginning at 11 p.m. on Friday, May 29, until 5 a.m. Monday, June 1. During this closure, crews will adjust the exit point to Montlake Blvd. and connect the bridge to a new, temporary off-ramp. Crews will also connect the temporary off-ramp to Montlake Blvd. and then prepare to remove the existing off-ramp to make space for future construction. Westbound SR 520 remains open across Lake Washington to I-5. Eastbound SR 520 remains open across Lake Washington. It is only the section of eastbound SR 520 between I-5 and Montlake Blvd. that will close. Please note: The Montlake Blvd. on-ramp to eastbound SR 520 will also close during this weekend. Only HOV 3+ and transit are allowed to use the direct access ramp on Montlake to enter eastbound SR 520. All other travelers must use alternate routes. Closures Eastbound SR 520 off-ramp to Montlake Blvd. closed nightly May 11-14, 18-21 and 27-28 East Roanoke Street closed between Boylston Avenue East and Harvard Avenue East May 16 Eastbound SR 520 closed between I-5 and Montlake Blvd. in Seattle May 29 – June 1 Long-term closures Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. reduced to a single lane daily Feb. 18 – June 12 24/7 Parking restrictions near Furhman Ave. for staging site April 1 – May 16 Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
