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Construction on I-90 & SR 520

Last update: 1:59 p.m. Tuesday, Sept. 2, 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: 12:55 p.m., 8/20
I-90 express lanes
Get the regular express lanes schedule.

  • Saturday, Aug. 30 to Tuesday, Sept. 2 - The I-90 express lanes will have an added westbound service from 7 a.m. Saturday to 12:30 p.m. Tuesday to accommodate extra traffic headed into Seattle. Lanes will be eastbound by 2 p.m. Tuesday, Sept. 1

Last update: 5:45 p.m., 8/14
I-90: East Channel Bridge Expansion Joint Replacement #8542
Milepost: 8.84
Hien Trinh, Project Engineer, 206-768-5601
Get project information

  • No closures scheduled for the week of Aug. 24-30.

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 left 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: 12:23 p.m., 8/29
I-90: Two-Way Transit and HOV Operations - Stage 3A #8569
Mileposts: 9.14
Hien Trinh, Project Engineer, 206-768-5601
Get Project information

  • Tuesday, Sept. 2 to the morning of Wednesday, Sept. 3 - One lane of eastbound I-90 at Bellevue Way Southeast and the eastbound I-90 off-ramp to Bellevue Way Southeast will close from 9 p.m. to 5 a.m. for concrete pouring work.
  • 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.

SR 520

Last update: 5:11 p.m., 8/29
SR 520: West Connection Bridge project #8432
Mileposts: 1.96 - 5.17
John Chi, Project Engineer, 425-225-8741
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  • Tuesday, Sept. 2 to the morning of Friday, Sept. 5  - One lane of eastbound and westbound SR 520 between Montlake Boulevard and the east highrise will close nightly from 9 p.m. to 6 a.m. for electrical equipment install.
  • DRIVER ALERT: Tuesday, Sept. 2 to the morning of Wednesday, Sept. 3- All lanes of westbound SR 520 between the east highrise and Montlake Boulevard will close from 11 p.m. to 5 a.m. for guardrail installation.

Last update: 3:43 p.m., 8/27
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  

  • Tuesday, Sept. 2 to the morning of Friday, Sept. 5 - The 108th Avenue Northeast and Northup Way intersection will close nightly from 10 p.m. to 5 a.m. for traffic island demolition. 
  • DRIVER ALERT: Friday, Sept. 5 to the morning of Monday, Sept. 8 - The 108th Avenue Northeast on-ramp to westbound SR 520 will close from 11 p.m. Friday to 5 a.m. Monday.

Last update: 1:59 p.m., 9/2
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

  • CANCELED: Tuesday, Sept. 2 to the morning of Wednesday, Sept. 3 - The southbound I-405 ramp to eastbound 520 will close from 9 p.m. to 5 a.m. for paving work.
  • CANCELED: Tuesday, Sept. 2 to the morning of Wednesday, Sept. 3 - The left lane of eastbound SR 520 will be closed between 108th and 124th from 9 p.m. to 5 a.m. for paving work.
  • Wednesday, Sept. 3 to the morning of Thursday, Sept. 4 - The ramp from westbound SR 520 to 51st will close from 9 p.m. to 5 a.m. for paving work.
  • DRIVER ALERT: Wednesday, Sept. 3 to the morning of Thursday, Sept. 4 - The ramps from westbound SR 520 to northbound and southbound I-405 will close from 9 p.m. to 5 a.m. for construction work.
  • Thursday, Sept. 4 to the morning of Friday, Sept. 5 - The left lane of eastbound SR 520 will be closed between 108th and 124th from 9 p.m. to 5 a.m. for paving work.
  • DRIVER ALERT: Thursday, Sept. 4 to the morning of Friday, Sept. 5 - The northbound I-405 ramp to eastbound SR 520 will be closed from 9 p.m. to 5 a.m. for paving work.
  • DRIVER ALERT: Thursday, Sept. 4 to the morning of Friday, Sept. 5 - The eastbound SR 520 ramp to 124th will close from 9 p.m. to 5 a.m. for paving work.
  • DRIVER ALERT: Sunday, Sept. 7 to the morning of Wednesday, Sept. 10 - The ramps from westbound SR 520 to northbound and southbound I-405 will close nightly from 9 p.m. to 5 a.m. for construction work.