I-90 & SR 520 construction

Last update: 11 a.m. Wednesday, March 13

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

I-90

Two-Way Transit & HOV Operations (Stage 3) - #8662

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 2.48 - 9.28
ContactAleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are performing work inside the Mount Baker and Mercer Island Lid tunnels in preparation for the Sound Transit East Link light rail extension.
Project webpage
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:

  • Monday, March 25, to Friday, March 29 – The eastbound I-90 HOV off-ramp to Island Crest Way will be closed from 9 a.m. to 3 p.m. daily.
  • Monday, March 25, to Friday, March 29 – The Island Crest Way HOV on-ramp to westbound I-90 will be closed from 9 a.m. to 3 p.m. daily.
  • Monday, March 25, to Friday, March 29 – The westbound I-90 HOV lane at East Mercer Way will be closed from 10 a.m. to 2 p.m. daily.

EB Sunset Way I/C to 436th Ave SE I/C Pavement Repair - #9213

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 4.21 - 33.29
ContactAleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repairing cracked concrete and replacing select concrete panels on eastbound I-90 between East Sunset Way in Issaquah and 436th Avenue Southeast in North Bend. 
Project webpage
Work schedule:

  • Sunday, March 24, to the morning of Friday, March 29 – Up to three right lanes of eastbound I-90 between Southeast High Point Way/270th Avenue Southeast and SR 18 will be closed from 8 p.m. to 6 a.m. nightly.
  • Sunday, March 24, to the morning of Friday, March 29 – The SR 18 ramp to eastbound I-90 will be closed from 9 p.m. to 6 a.m. nightly.
  • Sunday, March 24, to the morning of Friday, March 29 – The eastbound I-90 off-ramp to Winery Road will be closed from 9 p.m. to 6 a.m. nightly.

Floating Bridges Anchor Cable Replacements - #9151

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 4.28 - 5.89
Contact: Ed Kane, Project Engineer, 425-225-8743
Description: WSDOT contractor crews are replacing 32 steel anchor cables on the I-90 floating bridges on Lake Washington.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

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 Southeast HOV ramp to westbound I-90 will be closed.
  • Monday, March 25, to the morning of Friday, March 29 – The westbound I-90 off-ramp to Bellevue Way Southeast will be closed from 9 p.m. to 5 a.m. nightly.
  • Monday, March 25, to the morning of Friday, March 29 – The eastbound I-90 off-ramp to Bellevue Way Southeast will be closed from 9 p.m. to 5 a.m. nightly.
  • Monday, March 25, to the morning of Friday, March 29 – The eastbound I-90 HOV off-ramp to Bellevue Way Southeast will be closed from 8 p.m. to 5 a.m. nightly.
  • Monday, March 25, to the evening of Friday, March 29 – Flaggers will alternate traffic on Southeast 30th Street from 6 a.m. to 5 p.m. daily.

EB I-90 to SR 18 Active Warning Sign & Camera - #9282

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 23.00 - 25.73
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are installing two active warning signs and a traffic camera on eastbound I-90 in Snoqualmie.
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.

Sound Transit's East Link Extension - E360

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:

  • No lane or ramp closures are scheduled.

City of Redmond Ramp Split

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10.00
Contact: John Mork, City of Redmond Project Manager, 425-556-2713
Description: City of Redmond contractor crews are splitting the eastbound SR 520 off-ramps to Northeast 40th/51st Streets.
Project webpage
Work schedule:

  • No lane or ramp closures scheduled.