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Construction on I-90 & SR 520

Last update: 12:46 p.m. Monday, Oct. 20, 2014

This information changes frequently. Please check back often. Travelers can also call 5-1-1 for real-time traffic and weather updates.

See closures for SR 520.

Last update: 8:20 p.m., 10/17
I-90 express lanes
Get the regular express lanes schedule.

  • Saturday, Oct. 25 -The I-90 express lanes will have an added westbound service until 2 p.m. Sunday to accommodate extra traffic heading into Seattle. Lanes will be eastbound by 3:00 p.m.

Last update: 8:28 p.m., 10/17
I-90: Two-Way Transit and HOV Operations - Stage 3A #8569
Mileposts: 9.14
Hien Trinh, Project Engineer, 206-768-5601
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  • Saturday, Oct. 18 - Crews will close the two left lanes of eastbound I-90 approaching the Bellevue Way Southeast exit from 6:30 to 8:30 a.m. for restriping work. The HOV exit to the center roadway will also be closed.

SR 520

Last update: 10:58 a.m., 10/9
SR 520: West Approach Bridge North project #8625
Mileposts: 0.88 -  3.04
Steve Strand, Project Engineer, 206-770-3565
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  • Monday, Oct. 20 to the morning of Friday, Oct. 24 - A single lane of westbound SR 520 from the mid-span to Lake Washington Boulevard will close nightly from 9 p.m. to 6 a.m. for work trestle deliveries.


Last update: 11:55 a.m., 10/15
520: Medina to SR 202 Eastside Transit and HOV project #7963
Milepost: 3.98 – 6.43
Mark Allison , Project Engineer, 425-998-5255
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  • Friday, Oct. 17 to the morning of Saturday, Oct. 18 -The Northup Way and 108th Avenue Northeast intersection will close from 11 p.m. to 9 a.m. for iron work.
  • Saturday, Oct. 18 to the morning of Monday, Oct. 20 -The Northup Way and 108th Avenue Northeast intersection will close nightly from 9 p.m. to 9 a.m. for iron work.
  • Friday, Oct. 17 to the morning of Monday, Oct. 20 - The 108th Avenue Northeast and 112th Avenue Northeast on- and off-ramps to SR 520 will close from 11 p.m. Friday to 5 a.m. Monday for guardrail, barrier, and striping work.
  • Friday, Oct. 17 to the morning of Monday, Oct. 20 - Both directions of SR 520 between I-405 and Montlake will close from 11 p.m. Friday to 5 a.m. Monday for striping, barrier, and guardrail work.

Last update: 10:34 a.m., 10/10
SR 520: 108th Ave NE to W Lake Sammamish Pkwy paving #8597
Milepost: 6.22 – 11.69
Mark Sawyer, Project Engineer, 425-225-8799
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There may be closures on I-405 for this project  

  • DRIVER ALERT: Monday, Oct. 13 to the morning of Thursday, Oct. 16 - The southbound I-405 ramp to westbound SR 520 will close nightly from 9 p.m. to 5 a.m. for permanent striping. This work is weather dependent.
  • DRIVER ALERT: Monday, Oct. 13 to the morning of Friday, Oct. 17 - The northbound I-405 ramp to westbound SR 520 will close nightly from 9 p.m. to 5 a.m. for permanent striping.