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Construction on I-90 & SR 520

Last update: 9 a.m. Friday, Sept. 22

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: 

  • 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:

  • Friday, Sept. 22 - The Island Crest Way HOV on-ramp to westbound I-90 will be closed from 9 a.m. to 3 p.m.
  • Saturday, Sept. 23, to Sunday, Sept. 24 - The westbound I-90 HOV off-ramp to 80th Avenue Southeast will be closed from 7 a.m. to 7 p.m. daily.
  • Friday, Sept. 29, to the morning of Monday, Oct. 2 - The Island Crest Way HOV on-ramp to westbound I-90 will be closed from 8 p.m. to 5 a.m. nightly.
  • Saturday, Sept. 30, to the morning of Sunday, Oct. 1 - The HOV lane in both directions of I-90 between 77th Avenue Southeast and 80th Avenue  Southeast will be closed from 10 p.m. to 4 a.m.
  • Saturday, Sept. 30, to the morning of Sunday, Oct. 1 - The eastbound I-90 HOV off-ramp to Island Crest Way will be closed from 11 p.m. to 4 a.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:

  • Monday, Sept. 18, to Saturday, Sept. 23 - The Bellevue Way HOV on-ramp to westbound I-90 will be closed from 8 p.m. Monday to 5:30 a.m. Saturday.
  • **HIGH IMPACT** Saturday, Sept. 23, to Sunday, Sept. 24 - The I-90 on- and off-ramps at Bellevue Way will be closed from 5:30 a.m. Saturday to 9 p.m. Sunday.
  • Monday, Sept. 25, to Saturday, Sept. 30- The Bellevue Way HOV on-ramp to westbound I-90 will be closed from 8 p.m. Monday to 5:30 a.m. Saturday.
  • **HIGH IMPACT** Saturday, Sept. 30, to Sunday, Oct. 1 - The I-90 on- and off-ramps at Bellevue Way will be closed from 5:30 a.m. Saturday to 9 p.m. Sunday.
  • Monday, Oct. 2, to Saturday, Oct. 7 - The Bellevue Way HOV on-ramp to westbound I-90 will be closed from 8 p.m. Monday to 5:30 a.m. Saturday.
  • **HIGH IMPACT** Saturday, Oct. 7, to Sunday, Oct. 8 - The I-90 on- and off-ramps at Bellevue Way will be closed from 5:30 a.m. Saturday to 9 p.m. Sunday.
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.
Issaquah Bridge Inspection Work

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 15.80
Contact: Jim Malloy, WSDOT Bridge Maintenance, 425-339-1778
Description: WSDOT bridge maintenance crews are inspecting the SR 900 overpass.
Work schedule:

  • Sunday, Sept. 24 - A single lane in either direction of I-90 at SR 900/17th Avenue Northwest will be closed intermittently from 7 a.m. to 8:30 a.m. 
Seattle Maintenance Work

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.00
Contact: Lee Fanning, WSDOT Maintenance, 425-739-3739
Description: WSDOT maintenance crews are performing pavement repair work on the I-5/SR 520 ramps in Seattle.
Work schedule:

  • **HIGH IMPACT** Monday, Sept. 25, to the morning of Wednesday, Sept. 27 - The westbound SR 520 off-ramp to southbound I-5 will be closed from 11 p.m. to 5 a.m. nightly. This work is weather dependent.
  • **HIGH IMPACT** Wednesday, Sept. 27, to the morning of Thursday, Sept. 28 - The westbound SR 520 off-ramp to southbound I-5 will be closed from 10 p.m. to 5 a.m. This work is weather dependent.
  • **HIGH IMPACT** Thursday, Sept. 28, to the morning of Friday, Sept. 29 - The westbound SR 520 off-ramp to southbound I-5 will be closed from 11 p.m. to 5 a.m. This work is weather dependent.
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.
Montlake Maintenance Work

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.94
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT maintenance crews are replacing an expansion joint on the eastbound SR 520 off-ramp to Montlake Boulevard.
Work schedule:

  • **HIGH IMPACT** Monday, Sept. 25, to the morning of Wednesday, Sept. 27 - The eastbound SR 520 off-ramp to Montlake Boulevard will be closed from 11 p.m. to 5 a.m. nightly. 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:

  • Wednesday, Sept. 27, to the morning of Thursday, Sept. 28 - The two left lanes of eastbound SR 520 between Northup Way and Northeast 24th Street will be closed from 10 p.m. to 5 a.m. This work is weather dependent.