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 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
