Skip Top Navigation

NW Region Map

Click here for construction info in your area Snohomish CountyKing CountyWhatcom, Island and Skagit Counties

Special Events

Curious about a special event and how your commute may be affected? Visit our special events website for more information.

Get Connected

  • Sign up for email updates to get the latest news on highway projects that affect you.
  • Is this webpage helpful to you?

Construction on I-90 & SR 520

Last update: 1:20 p.m. Tuesday, May 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

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.
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, May 21, to Friday, May 25 - The eastbound I-90 HOV off-ramp to Island Crest Way will be closed from 9 a.m. to 3 p.m. daily.
  • Monday, May 21, to Friday, May 25 - The Island Crest Way HOV on-ramp to westbound I-90 will be closed from 9 a.m. to 3 p.m. daily.
  • Wednesday, May 23 - The HOV lane on westbound I-90 near Shorewood Drive will be closed from 10 a.m. to 2 p.m.
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, May 20, to the morning of Thursday, May 24 - Up to three lanes of eastbound I-90 between East Sunset Way/Highlands Drive and the Raging River Bridge will be closed from 8 p.m. to 6 a.m. nightly. This work is weather dependent.
  • Thursday, May 24, to the morning of Friday, May 25 - Up to three lanes of eastbound I-90 between High Point/270th Avenue Southeast and North Bend Way will be closed from 8 p.m. to 6 a.m. This work is weather dependent.
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:

  • 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:

  • Monday, April 16, until further notice - The Bellevue Way HOV on-ramp to westbound I-90 will be closed 24/7.
  • Monday, May 21, to the morning of Friday, May 25 - The eastbound and westbound I-90 off-ramps to Bellevue Way will be closed from 9:15 p.m. to 5:15 a.m. nightly.
  • Monday, May 21, to the morning of Friday, May 25 - The eastbound I-90 HOV off-ramp to Bellevue Way will be closed from 8 p.m. to 5:15 a.m. nightly.
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:

  • 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, May 23, to the morning of Friday, May 25 - The eastbound SR 520 off-ramp to northbound 148th Street will be closed from 10 p.m. to 5 a.m. nightly.
  • Wednesday, May 23, to the morning of Thursday, May 24 - The HOV lane on eastbound SR 520 at 148th Street will be closed from 10 p.m. to 5 a.m.
  • Wednesday, May 23, to the morning of Thursday, May 24 - The northbound 148th Street on-ramp to eastbound SR 520 will be closed from 10 p.m. to 5 a.m.
  • Wednesday, May 23, to the morning of Friday, May 25 - The eastbound SR 520 off-ramp to southbound 148th Street will be closed from 10 p.m. to 5 a.m. nightly.