I-90 & SR 520 construction

Last update: 9:50 a.m. Friday, Sept. 25

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

I-90

I-90 Maintenance

Highway: I-90    Region: Northwest    County: King    
Contact: DiAngelea Millar, Communications, 206-440-4452
Description: WSDOT maintenance crews will make repairs on I-90. 
Work schedule:

  • No lane or ramp closures are scheduled.

Sound Transit's East Link Extension - E130

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 2.54 - 8.84
Contact: Zack Ambrose, Sound Transit, 206-903-7176
Description: Sound Transit crews are constructing the East Link light rail extension from Seattle to Redmond.
Project webpage
Work schedule:

  • Tuesday, Sept. 15 – The HOV lane on eastbound I-90 between the floating bridge and Mercer Island Tunnel will close at 10 a.m. to 2 p.m.

Sound Transit's East Link Extension - E320

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 9.14
Contact: Jason Hampton, Sound Transit, 206-903-7177
Description: Sound Transit crews are constructing the East Link light rail extension from Seattle to Redmond.
Project webpage
Work schedule

  • Until further notice – The Bellevue Way SE HOV on-ramp to westbound I-90 is closed.
  • Monday, Sept. 28 to the afternoon of Wednesday, Sept. 30 – The HOV lane on westbound I-90 between Richards Road and Bellevue Way will close from 9 p.m. to 5 a.m. nighty.
  • Monday, Sept. 28 to the afternoon of Friday, Oct. 2 – The left lane on westbound I-90 between Richards Road and Bellevue Way will close from 9 p.m. to 5 a.m. nighty.
  • Monday, Sept. 28 to the afternoon of Friday, Oct. 2 – The southbound I-405 HOV ramp to westbound I-90 will close from 8 p.m. to 5 a.m. nighty.
  • Wednesday, Sept. 30 to the afternoon of Friday, Oct. 2 – The Richards Road on-ramp to westbound I-90 will close from 9 p.m. to 5 a.m. nighty.
  • Wednesday, Sept. 30 to the afternoon of Friday, Oct. 2 – The right two lanes on westbound I-90 between Richards Road and Bellevue Way will close from 11 p.m. to 5 a.m. nighty.
  • Wednesday, Sept. 30 to the afternoon of Friday, Oct. 2 – The northbound I-405 ramp to westbound I-90 will close from 10 p.m. to 5 a.m. nighty.

I-90 Et Al Ramp Meter Enhancement​ - #9459

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 8.35
Contact: Evelyn Pao, Project Engineer, 425-495-1577
Description: WSDOT crews work on Mercer Way ramp meter.

Work schedule

  • No lane or ramp closures are scheduled.

City of Bellevue - I-405 to 132nd Ave SE - Mountains to Sound Greenway Trail

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 9.95
Contact: Chris Masek, City of Bellevue Project Manager, 425-452-4619
Description: City of Bellevue contractor crews are building a pedestrian/bicycle path over Factoria Boulevard and installing additional lanes on the eastbound I-90 off-ramp to Factoria Boulevard.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

Eastgate to SR 900 Corridor Improvements - #9429

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 11.55 - 15.52
ContactJames Harper, Project Engineer, 206-768-5862
Description: WSDOT contractor crews are adding capacity on both directions of I-90 between the Eastgate and West Lake Sammamish Parkway interchanges, by restriping the existing roadway and creating auxiliary lanes. Crews are also constructing noise walls in strategic locations within the project area to minimize traffic noise.
Project webpage
Work schedule:

 

  • Monday, Sept. 28 to the afternoon of Friday, Oct. 2 – The left lane on eastbound I-90 between 150th Avenue and SR 900 will close from 6 a.m. to 2 p.m. daily.
  • Monday, Sept. 28 to the afternoon of Friday, Oct. 2 – The right lane on westbound I-90 between SR 900 and 150th Avenue will close from 10 a.m. to 5 p.m. daily.

 

I-90/SR 18 Interchange Auxiliary Ramp - #9476

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 25.34 - 25.67
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are modifying the existing Snoqualmie Parkway/SR 18 on-ramp to westbound I-90.
Work schedule:

  • No lane or ramp closures are scheduled.

SR 520

    West Approach Bridge North - #8625

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.88 - 3.04
    Contact: SR 520 Bridge Replacement & HOV Program, 206-770-3554
    Description: The West Approach Bridge North Project is the latest phase of construction of the SR 520 Bridge Replacement and HOV Program and will extend SR 520's three westbound lanes from the new floating bridge to the Montlake area in Seattle.
    Work schedule:

    • No lane or ramp closures are scheduled.

    Montlake to Lake Washington I/C and Bridge Replacement - #9015

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.94 – 1.56
    Contact: SR 520 Bridge Replacement & HOV Program, 206-770-3554
    Description: The Montlake Project is the first stage of the SR 520 Bridge Replacement and HOV Program that will make key improvements to the Montlake area.
    Project webpage
    Work schedule:

    • Monday, Sept. 14 to the morning of Tuesday, Sept. 15 – The right lane eastbound SR 520 between Lake Washington Boulevard and West Highrise will close from 9 p.m. to 5 a.m. nightly.

    Eastside NE Points Drive and 92nd Ave Slide Repair - #9058

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost 5.17
    Contact: Shane Spahr, Project Engineer, 360-848-7103
    Description: Contractor crews are repairing an overlay at the 92nd Avenue Northeast Kiss-and-ride and stabilizing the slope below NE Points Drive. 
    Work schedule:

    • No lane or ramp closures are scheduled.

    Sound Transit's East Link Extension - E360, E130

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 7.00 - 9.50
    Contact: Ryan Bianchi, Sound Transit, 206-398-5070
    Description: Sound Transit crews are constructing the East Link light rail extension from Bellevue to Redmond.
    Project webpage
    Work schedule:

     

    • Monday, Sept. 21 to the afternoon of Friday, Sept. 25 – Westbound SR 520 between NE 40th Street and 148th Avenue NE will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 21 to the afternoon of Wednesday, Sept. 23 – The westbound SR 520 off-ramp to NE 40th Street will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 21 to the afternoon of Wednesday, Sept. 23 – The NE 40th Street on-ramp to westbound SR 520 will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 21 to the afternoon of Wednesday, Sept. 23 – The 148th Avenue NE on-ramp to westbound SR 520 will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 21 to the afternoon of Wednesday, Sept. 23 – The westbound SR 520 off-ramp to 148th Avenue NE will close from 10 p.m. to 5 a.m. nightly.
    • Tuesday, Sept. 22 to the morning of Thursday, Sept. 24 – The eastbound SR 520 off-ramp to NE 40th Street will close from 10 p.m. to 5 a.m. nightly.
    • Tuesday, Sept. 22 to the morning of Thursday, Sept. 24 – The 148th Avenue NE on-ramp to eastbound SR 520 will close from 10 p.m. to 5 a.m. nightly.
    • Tuesday, Sept. 22 to the morning of Thursday, Sept. 24 – The left two lanes of eastbound SR 520 between 148th Avenue NE and NE 40th Street will close from 10 p.m. to 5 a.m. nightly.

     

    RTS Microsoft Pedestrian Bridge

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10.14
    Contact: Jay Cooper, WSDOT Regional Transit Coordination, 206-716-1102
    Description: Microsoft contractor crews are constructing a pedestrian bridge to the Microsoft campus.
    Project webpage.
    Work schedule:

    • Monday, Sept. 14 to the afternoon of Saturday, Sept. 19 – Westbound SR 520 between NE 40th Street and 148th Avenue NE will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 14 to the afternoon of Saturday, Sept. 19 – The westbound SR 520 off-ramp to NE 40th Street will close from 10 p.m. to 5 a.m.
    • Monday, Sept. 14 to the afternoon of Saturday, Sept. 19 – The NE 40th Street on-ramp to westbound SR 520 will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 14 to the afternoon of Saturday, Sept. 19 – The 148th Avenue NE on-ramp to westbound SR 520 will close from 10 p.m. to 5 a.m. nightly.
    • Monday, Sept. 14 to the afternoon of Saturday, Sept. 19 - The westbound SR 520 off-ramp to 148th Avenue NE will close from 10 p.m. to 5 a.m. nightly.

    SR 520 maintenance

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10-12
    Contact: Eric Dawson, City of Redmond Project Engineer, 425-556-2867
    Description: City of Redmond will repave on-off ramps to and from SR 520.
    Project webpage
    Work schedule:

    • Saturday, Sept. 24 – The westbound SR 520 off-ramp to Montlake Boulevard will close from 6 a.m. to 6 p.m.

    Sound Transit's Redmond Link Extension - R200

    Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 12.19 - 12.83
    Contact: Ryan Bianchi, Sound Transit, 206-398-5070
    Description: Sound Transit crews are constructing the Redmond Link light rail extension from Bellevue to Redmond.
    Project webpage
    Work schedule:

    • No lane or ramp closures are scheduled.