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Construction on I-90 & SR 520

Last update: 1:55 p.m. Wednesday, Sept. 28

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
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT uses the I-90 express lanes to assist the flow of traffic during busy travel times. These lanes are scheduled to move in the direction that will relieve the most congestion from the transportation system.
Express lanes schedule
Work schedule:

  • Wednesday, Sept. 28, to Friday, Sept. 30 – The I-90 express lanes will close at 9 p.m. nightly then open westbound from 10 p.m. into normal weekday schedule.
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 website
Work schedule:

  • Monday, Sept. 26, to Thursday, Sept. 29 - Flammable cargo will be prohibited from traveling on eastbound I-90 inside the Mount Baker Tunnel and the Mercer Island Lid tunnel from 5 a.m. Monday to 11:59 p.m. Thursday.
  • Monday, Sept. 26, to the morning of Friday, Sept. 30 - The Island Crest Way on-ramp to eastbound I-90 will be closed from 9 p.m. to 5 a.m. nightly. A signed detour will be in place.
  • Monday, Sept. 26, to the morning of Friday, Sept. 30 - Up to three lanes of westbound I-90 at Rainier Avenue South will be closed from 9 p.m. to 5 a.m. nightly.
  • Wednesday, Sept. 28, to the morning of Friday, Sept. 30 - The eastbound I-90 HOV off-ramp to Bellevue Way Southeast and ramp to I-405 will be closed from 9 p.m. to 5 a.m. nightly. A signed detour will be in place.
  • Wednesday, Sept. 28, to the morning of Friday, Sept. 30 - The I-90 express lanes will close at 9 p.m. nightly then open westbound from 10 p.m. into normal weekday schedule.
SR 202 I/C to S Fork Snoqualmie River Paving - #8819

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 30.52 - 31.66
Contact: Mark Sawyer, Project Engineer, 425-225-8799
Description: WSDOT contractor crews are repaving both directions of I-90 from South Fork Snoqualmie River to SR 202 near North Bend, installing five new concrete panels and replacing existing rumble strips.
Project website
Work schedule:

  • Monday, Sept. 26, to the morning of Friday, Sept. 30 - Up to two lanes in both directions of I-90 between SR 202/Bendigo Boulevard South and 436th Avenue Southeast will be closed nightly beginning with one lane at 8 p.m. At least one lane will reopen by 6 a.m. This work is weather dependent.
NW Region Guardrail & Glarescreen - #8923

Highway: I-90    RegionNorthwest    County: King    Location: Milepost(s) 22.00 - 22.50
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are installing guardrail and glare screens along I-90 near Preston.
Work schedule:

  • Monday, Sept. 26, to the morning of Friday, Sept. 30 - The left lane of eastbound I-90 at the Preston/Fall City off-ramp will be closed from 8 p.m. to 6 a.m. nightly. 
 

SR 520

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 website
Work Schedule:

  • Wednesday, Sept. 28, to the morning of Friday, Sept. 30 - There will be intermittent rolling slowdowns on the Montlake Boulevard East/SR 513 on-ramp to eastbound SR 520 from 9 p.m. to 5 a.m. nightly.
  • Wednesday, Sept. 28, to the morning of Friday, Sept. 30 - A single lane of Lake Washington Boulevard East between Montlake Boulevard East/SR 513 and 24th Avenue East will be intermittently closed from 9 p.m. to 5 a.m. nightly. Flaggers will alternate traffic through the open lane.
  • **HIGH IMPACT** Thursday, Sept. 29, to the morning of Friday, Sept. 30 - Eastbound SR 520 from Montlake Boulevard East/SR 513 to 92nd Avenue Northeast will be closed from 11:30 p.m. to 5 a.m.
  • **HIGH IMPACT** Thursday, Sept. 29, to the morning of Friday, Sept. 30 - Westbound SR 520 from 92nd Avenue Northeast to Montlake Boulevard East/SR 513 will be closed from 11 p.m. to 5 a.m.
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 website
Work schedule:

  • No lane or ramp closures are scheduled.
NE 124th St Vic to Tolt River Bridge Paving and ADA Compliance - #8866

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 12.83
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repaving areas of SR 202 in Redmond and between Redmond and Fall City and upgrading 17 pedestrian ramps in Redmond.
Work schedule:

  • Monday, Sept. 26, to the morning of Thursday, Sept. 29 - The eastbound SR 202/Redmond Way on-ramp to westbound SR 520 will be closed from 11 p.m. to 5 a.m. nightly. A signed detour will be in place. This work is weather dependent.
  • Monday, Sept. 26, to the morning of Thursday, Sept. 29 - The left lane of the eastbound SR 520 off-ramp to SR 202/Redmond Way will be closed from 11 p.m. to 5 a.m. nightly. All traffic must turn right onto eastbound SR 202/Redmond Way. A signed detour will be in place. This work is weather dependent.