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Construction on I-90 & SR 520

Last update: 9:30 a.m. Friday, Aug. 11

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

Express Lanes Schedule Changes

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 1.99 8.90

  • The I-90 express lanes are permanently closed to allow construction of Sound Transit's East Link light rail extension from Seattle to Redmond.
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 in both directions of I-90 inside the Mount Baker and Mercer Island Lid tunnels until further notice.
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, Aug. 14, to Tuesday, Aug. 15 - The 80th Street HOV on-ramp to eastbound I-90 will be closed from 9 a.m. to 1 p.m. daily.
  • Wednesday, Aug. 16, to the morning of Friday, Aug. 18 - The Island Crest Way HOV on-ramp to westbound I-90 may be closed from 9 a.m. to 3 p.m. daily.
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:

  • **HIGH IMPACT** Saturday, Aug. 12, to Sunday, Aug. 13 - The I-90 on- and off-ramps at Bellevue Way will be closed from 5:30 a.m. Saturday to 9 p.m. Sunday.
  • Saturday, Aug. 12, to Monday, Aug. 21 - The HOV lane of the Bellevue Way on-ramp to westbound I-90 will be closed from 5:30 a.m. Saturday to 3 p.m. Monday.
  • **HIGH IMPACT** Saturday, Aug. 19, to Sunday, Aug. 20 - The I-90 on- and off-ramps at Bellevue Way will be closed from 5:30 a.m. Saturday to 9 p.m. Sunday.
Eastgate Bridge Inspection Work

Highway: I-90    Region: Northwest     County: King    Location: Milepost(s) 11.00 - 11.50
Contact: Jim Malloy, WSDOT Bridge Maintenance, 425-339-1778
Description: WSDOT maintenance crews are performing bridge inspection work on I-90 in Eastgate.
Work schedule:

  • Saturday, Aug. 19 - Two lanes of eastbound I-90 between 142nd Place Southeast and 150th Avenue Southeast will be intermittently closed from 6 to 8 a.m.
  • Sunday, Aug. 20 - Two lanes of westbound I-90 between 150th Avenue Southeast and 142nd Place Southeast will be intermittently closed from 6 to 8 a.m.
N Fork Issaquah Creek Fish Passage - #9040

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 17.05 - 17.18
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT contractor crews are realigning North Fork Issaquah Creek near East Lake Sammamish Parkway.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.
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:

  • Tuesday, Aug. 22, to the morning of Thursday, Aug. 24 - The Montlake Boulevard on-ramp to eastbound SR 520 will be closed from 10 p.m. to 6 a.m. nightly. This work is weather dependent.
  • **HIGH IMPACT** Friday, Aug. 25, to the morning of Monday, Aug. 28
    All lanes in both directions of SR 520 will be closed from 11 p.m. Friday to 5 a.m. Monday. Westbound SR 520 will be closed between 92nd Avenue Northeast and Montlake Boulevard. Eastbound SR 520 will be closed between I-5 and 92nd Avenue Northeast. This work is weather dependent.
  • **HIGH IMPACT** Friday, Aug. 25, to the morning of Monday, Aug. 28 - The northbound and southbound I-5 off-ramps to eastbound SR 520 will be closed from 11 p.m. Friday to 5 a.m. Monday. This work is weather dependent.
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 will replace 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:

  • 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.