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Construction on I-90 & SR 520

Last update: 11:25 a.m. Tuesday, April 24

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

| I-90 | SR 520 |

I-90

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

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 2.48 9.28
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT and Sound Transit contractor crews are adding HOV lanes to both directions of I-90 between Seattle and Bellevue and preparing the center roadway for East Link light rail.
Project webpage
Work schedule: 

  • Until further notice - Flammable cargo is prohibited from traveling on both directions of I-90 inside the Mount Baker and Mercer Island Lid tunnels.
  • Monday, April 23 - The right lane of westbound I-90 between the Mercer Island Lid and Mount Baker Tunnels will be closed from 9 to 10 p.m.
  • Tuesday, April 24 - The right lane of eastbound I-90 between the Mount Baker and Mercer Island Lid Tunnels will be closed from 9 to 11 p.m.
  • Wednesday, April 25 - The left lane of westbound I-90 between the Mount Baker and Mercer Island Lid Tunnels will be closed from 9 to 11 p.m.
  • Thursday, April 26 - The left lane of westbound I-90 between the Mercer Island Lid and Mount Baker Tunnels will be closed from 9 to 10 p.m.
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, April 23, to Friday, April 27 - The HOV lane on westbound I-90 near East Mercer Way will be closed from 9 a.m. to 3 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:

  • Construction is scheduled to begin in spring 2018.
Floating Bridges Anchor Cable Replacements - #9151

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 4.28 - 5.89
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are replacing 32 steel anchor cables on the I-90 floating bridges on Lake Washington.
Project webpage
Work schedule:

  • Construction is scheduled to begin in spring 2018.
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:

  • Monday, April 16, until further notice - The Bellevue Way HOV on-ramp to westbound I-90 will be closed 24/7.
West Approach Bridge North - #8625

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.88 – 3.04
Contact: Steve Strand, Project Engineer, 206-770-3565
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.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.
Evergreen Point Floating Bridge and Landings Project - #8066

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 3.83 – 4.59
Contact: Steve Peer, Communications, 206-770-3531
Description: The SR 520 Floating Bridge and Landings project is replacing the old SR 520 floating bridge and approaches from the future west approach structure east of Foster Island in Seattle to Evergreen Point Road in Medina.
Project webpage
Work schedule:

  • Saturday, April 21, to the morning of Sunday, April 22 - The right lane of eastbound SR 520 on the floating bridge will be closed from 10 p.m. to 10 a.m.
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.