Eastbound SR 520 closed between I-5 and Montlake Blvd. in Seattle May 8-11 Date: May 8, 2026 to May 11, 2026 Time: 11 p.m. Friday to 5 a.m. Monday Activity details: Partial highway closureRamp closureHigh-impact construction Impact type: Around-the-clockTrafficNoise Description: Crews will use this closure to finalize a traffic shift of the northbound I-5 ramp to eastbound SR 520 and create a new work zone. This work is part of the SR 520 Portage Bay Bridge and Roanoke Lid Project. Learn more about this upcoming traffic shift on our latest blog post. Traffic: Eastbound SR 520 and all associated on- and off-ramps between I-5 and Montlake Blvd. will close for construction beginning at 11 p.m. on Friday, May 8, until 5 a.m. Monday, May 11. In addition, the Montlake Blvd. on-ramp to eastbound SR 520 will also close. What to expect: During this closure, crews will finalize a traffic shift of the northbound I-5 ramp to eastbound SR 520. When eastbound SR 520 reopens on May 11, northbound I-5 traffic will use a new temporary ramp to access eastbound SR 520. Please pay attention to the new signage and allow for time to adjust to the new setup. Southbound I-5 and westbound SR 520 are not affected by this work. SR 520 remains open in both directions across Lake Washington. It is only the section of eastbound SR 520 between I-5 and Montlake Blvd. that will close. Please note: While eastbound SR 520 remains open across Lake Washington, only HOV 3+ and transit are allowed to use the direct access ramps on Montlake Blvd. to access eastbound SR 520. All other travelers must use alternate routes. THIS WEEKEND: #ShiftHappens!Reminder: We are closing eastbound SR 520 between I-5 and Montlake for our first major traffic shift of the Portage Bay Project.All the info you need is in the video and links below!Info: https://t.co/xJTAwEnpWVBlog: https://t.co/7J2tOGUAi4 https://t.co/ehHFy9HxoE— SR 520 (@wsdot_520) May 4, 2026 Closures Eastbound SR 520 off-ramp to Montlake Boulevard in Seattle closed nightly Sept. 21-24 Eastbound SR 520 between I-5 and Montlake Boulevard closed Oct. 2-5 Westbound SR 520 off-ramp to northbound I-5 and East Roanoke Street closed nightly Sept. 28 – Oct. 1, Oct. 5-8 & Oct. 12-15 Boyer Ave. E. between E. Roanoke St. and Everett Ave. E. closed nightly Oct. 12-15 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 – September 25 (excluding weekends) Activities Vibratory casing installation in Portage Bay schedule: Phase of work is complete Contact Info Email: sr520bridge@wsdot.wa.gov 24-hour construction hotline: 206-319-4520
