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Construction on I-90 & SR 520

Last update: 3:12 p.m. Friday, Sept. 19, 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: 11:13 a.m., 9/12
I-90 express lanes
Get the regular express lanes schedule.


Last update: 12:26 p.m., 8/26
I-90: Bridge Inspection
Mileposts: 8.48-8.9
Jim Malloy, WSDOT maintenance, 425-339-1778

  • Tuesday, Sept. 16 - The left lane of eastbound I-90 at East Mercer Way will close from 9 a.m to 1 p.m. for bridge inspection.
  • Tuesday, Sept. 30 - The HOV lane of westbound I-90 at the East Channel Bridge will close from 9 a.m. to 1 p.m. for bridge inspection. 

Last update: 8:57 a.m., 9/3
I-90: Two-Way Transit and HOV Operations - Stage 3A #8569
Mileposts: 9.14
Hien Trinh, Project Engineer, 206-768-5601
Get Project information

  • DRIVER ALERT: Monday, Sept. 8 to the morning Tuesday, Sept. 23 - The eastbound I-90 exit to Bellevue Way Southeast will close 9 p.m. Monday, Sept. 8 continuously for 15 days until the morning of Tuesday, Sept. 23 for drainage, grading, and paving work.

Last update: 10:46 a.m., 9/10
I-90: Pavement repair
Mileposts: 13.4-13.9
Lee Fanning, WSDOT maintenance, 425-739-3739

  • Friday, Sept. 19 to the morning of Saturday, Sept. 20 - Two right lanes of eastbound I-90 at SR 900 will close from 8 p.m. to 5 a.m. for paving work.
  • Saturday, Sept. 20 to the morning of Sunday, Sept. 21 - Two right lanes of eastbound I-90 at SR 900 will close from 8 p.m. to 5 a.m. for paving work.

SR 520

Last update: 11:03 a.m., 9/15
520: Medina to SR 202 Eastside Transit and HOV project #7963
Milepost: 3.98 – 6.43
Mark Allison , Project Engineer, 425-998-5255
Get Project information    

  • Thursday, Sept. 18 to the morning of Friday, Sept. 19 - The 108th and 12th Avenue Northeast on- and off-ramps to Sr 520 will close 10 p.m. to 5 a.m. for paving work.
  • Monday, Sept. 22 to the morning of Friday, Sept. 26 - The left lane of eastbound and westbound of SR 520 at 92nd Avenue Northeast will close nightly from 9 p.m. to 5 a.m. to install transit glass screens.

Last update: 3:12 p.m., 9/12
SR 520: 108th Ave NE to W Lake Sammamish Pkwy paving #8597
Milepost: 6.22 – 11.69
Mark Sawyer, Project Engineer, 425-225-8799
Get Project information

There may be closures on I-405 for this project

  • Thursday, Sept. 18 to the morning of Sept. 19 - The Northeast 40th Street and Northeast 51st off-ramp from westbound SR 520 will close from 9 p.m. to 5 a.m. for paving work.
  • Thursday, Sept. 18 to the morning of Sept. 19 - The West Lake Sammamish Parkway ramp to westbound SR 520 will close from 11 p.m. to 5 a.m. for paving work.
  • Monday, Sept. 22 to the morning of Tuesday, Sept. 23 – Two right lanes of eastbound SR 520 between 108th Avenue Northeast and I-405 will close from 9 p.m. to 5 a.m. for striping work.
  • Monday, Sept. 22 to the morning of Tuesday, Sept. 23 – The 108th Avenue Northeast on-ramp to eastbound SR 520 will close from 9 p.m. to 5 a.m. for striping work.
  • Monday, Sept. 22 to the morning of Tuesday, Sept. 23 – The eastbound SR 520 ramps to northbound and southbound I-405 will close from 9 p.m. to 5 a.m. for striping work.
  • Tuesday, Sept. 23 to the morning of Wednesday, Sept. 24 – Two left lanes of eastbound SR 520 will close from 108th Avenue Northeast to West Lake Sammamish Parkway from 9 p.m. to 5 a.m. for striping work.
  • Tuesday, Sept. 23 the morning of Thursday, Sept. 25 – The left lane of westbound SR 520 at the I-405 interchange will close nightly from 9 p.m. to 5 a.m. for traffic loop work.
  • Wednesday, Sept. 24 to the morning of Thursday, Sept. 25 – Two right lanes of eastbound SR 520 will close from the I-405 interchange to West Lake Sammamish Parkway from 9 p.m. to 5 a.m. for striping work.
  • Wednesday, Sept. 24 to the morning of Thursday, Sept. 25 – The southbound I-405 ramp to eastbound SR 520 will close from 9 p.m. to 5 a.m. for striping work.
  • Wednesday, Sept. 24 to the morning of Thursday, Sept. 25 – The northbound I-405 ramp to eastbound SR 520 via 124th Avenue Northeast will close from 9 p.m. to 5 a.m. for striping work.
  • Wednesday, Sept. 24 to the morning of Thursday, Sept. 25 – The eastbound SR 520 off-ramp to 124th Avenue Northeast will close from 9 p.m. to 5 a.m. for striping work.
  • Wednesday, Sept. 24 to the morning of Thursday, Sept. 25 – The westbound SR 520 off-ramps to Northeast 51st and Northeast 40th Streets will close from 9 p.m. to 5 a.m. for striping work.
  • Thursday, Sept. 25 to the morning of Friday, Sept. 26 – The three left lanes of westbound SR 520 between West Lake Sammamish Parkway and Northeast 60th Street will close from 10 p.m. to 5 a.m. for striping work.