I-90 & SR 520 construction

Last update: 1:30 p.m. Friday, Nov. 15

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

I-90

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, Nov. 18, to the morning of Friday, Nov. 22 – The two lanes of southbound I-5 at the I-90 Interchange will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the afternoon of Tuesday, Nov. 19 – The Island Crest Way HOV on-ramp to westbound I-90 will close from 9 a.m. to 3 p.m. daily.
  • Wednesday, Nov. 20 – The eastbound I-90 HOV off-ramp to Island Crest Way will close from 7 a.m. to 3 p.m.
  • Thursday, Nov. 21 – The Island Crest Way HOV on-ramp to westbound I-90 will close from 9 a.m. to 3 p.m.
  • Thursday, Nov. 21 – The HOV lane of westbound I-90 between the East Channel Bridge and Shorewood Drive will close from 10 a.m. to 2 p.m.

Seattle Maintenance

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 3.00
ContactThomas Charlson, Communications, 206-440-4699
Description: WSDOT maintenance crews are performing signage work.
Work schedule:

  • Sunday, Nov. 17 – The HOV lane of the Rainier Avenue on-ramp to eastbound I-90 will close from 6 to 10 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, Nov. 18, to the morning of Wednesday, Nov. 20 – The Richards Road on-ramp to westbound I-90 will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The left lane of westbound I-90 between Richards Road and Bellevue Way Southeast will close from 11 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The center lane of westbound I-90 between Richards Road and Bellevue Way Southeast will close from 11 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Wednesday, Nov. 20 – The right lane of westbound I-90 between Richards Road and Bellevue Way Southeast will close from 11 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The northbound I-405 ramp to westbound I-90 will close from 10 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The southbound I-405 ramp to westbound I-90 will close from 10 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The southbound I-405 ramp to the westbound I-90 HOV lane will close from 8 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the morning of Wednesday, Nov. 20 – The right lane of westbound I-90 between I-405 and Bellevue Way Southeast will close from 8 p.m. to 5 a.m. nightly.
  • Wednesday, Nov. 20, to the morning of Friday, Nov. 22 – The HOV lane of westbound I-90 between Richards Road and Bellevue Way Southeast will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Nov. 18, to the afternoon of Friday, Nov. 22 – Flaggers will alternate traffic on Southeast 30th Street from 6 a.m. to 5 p.m. daily.
  • Thursday, Nov. 21 – The Bellevue Way Southeast on-ramp to eastbound I-90 will partially be closed from 9 a.m. to 1 p.m.

City of Bellevue - I-405 to 132nd Ave SE - Mountains to Sound Greenway Trail

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 9.95
Contact: Chris Masek, City of Bellevue Project Manager, 425-452-4619
Description: City of Bellevue contractor crews are building a pedestrian/bicycle path over Factoria Boulevard and installing additional lanes on the eastbound I-90 off-ramp to Factoria Boulevard.
Project webpage
Work schedule:

  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The eastbound I-90 off-ramp to Factoria Boulevard will close from 9 p.m. to 5 a.m. nightly.

Eastgate to SR 900 Corridor Improvements - #9429

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 11.55 - 15.52
ContactJames Harper, Project Engineer, 206-768-5862
Description: WSDOT contractor crews are adding capacity on both directions of I-90 between the Eastgate and West Lake Sammamish Parkway interchanges, by restriping the existing roadway and creating auxiliary lanes. Crews are also constructing noise walls in strategic locations within the project area to minimize traffic noise.
Project webpage
Work schedule:

  • Monday, Nov. 18, to the afternoon of Wednesday, Nov. 20 – The left lane of eastbound I-90 between 150th Avenue Southeast and SR 900 will be closed from 7 a.m. to 2 p.m. daily.
  • Monday, Nov. 18, to the afternoon of Wednesday, Nov. 20 – The left lane of westbound I-90 between SR 900 and 150th Avenue Southeast will be closed from 10 a.m. to 7 p.m. daily.

Breakaway Cable Terminal Replacement - #9441

Highway: I-90  Region: Northwest    County: King    Location: Milepost(s) 13.04 - 19.41
Contact: Mark Sawyer, Project Engineer, 425-225-8799
Description: As part of a safety improvement project, WSDOT contractor crews are upgrading guardrail and terminal ends on several state highways.
Project details
Work schedule:

  • Monday, Nov. 18, to the morning of Tuesday, July 19 –The eastbound I-90 off-ramp to northbound Lakemont Boulevard will be closed 9 p.m. to 5 a.m.
  • Wednesday, Nov. 20 to the morning of Thursday Nov. 21 –The right lane of the northbound SR 900 ramp to I-90 will be closed from 8 p.m. to 5 a.m.
  • Wednesday, Nov. 20 to the morning of Thursday Nov. 21 –The westbound I-90 off-ramp to Sunset Way will be closed with a signed detour from 9 p.m. to 5 a.m.
  • Thursday, Nov. 21, to the morning of Friday, Nov. 22 – The right lane of westbound I-90 between 256th Avenue and 246th Avenue will be closed from 9 p.m. to 5 a.m.

I-90/SR 18 Interchange Auxiliary Ramp - #9476

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 25.34 - 25.67
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are modifying the existing Snoqualmie Parkway/SR 18 on-ramp to westbound I-90.
Work schedule:

  • Monday, Nov. 18, to the afternoon of Friday, Nov. 22 – The right lane of Snoqualmie Parkway between Southeast 99th Street and I-90 will close from 10:30 a.m. to 4 p.m. daily.
  • Monday, Nov. 18, to the afternoon of Wednesday, Nov. 20 – The Snoqualmie Parkway on-ramp to westbound I-90 will close from 10:30 a.m. to 4 p.m. daily.

SR 520

West Approach Bridge North - #8625

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.88 - 3.04
Contact: SR 520 Bridge Replacement & HOV Program, 206-770-3554
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.
Work schedule:

  • No lane or ramp closures are scheduled.

Montlake to Lake Washington I/C and Bridge Replacement - #9015

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.94 – 1.56
Contact: SR 520 Bridge Replacement & HOV Program, 206-770-3554
Description: The Montlake Project is the first stage of the SR 520 Bridge Replacement and HOV Program that will make key improvements to the Montlake area.
Project webpage
Work schedule:

  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – The westbound SR 520 off-ramp to Lake Washington Boulevard will close from 10 p.m. to 6 a.m. nightly.
  • Monday, Nov. 18, to the morning of Friday, Nov. 22 – All lanes in both directions of Lake Washington Boulevard East between Montlake Boulevard Southeast and 24th Avenue Southeast will close from 10 p.m. to 6 a.m. nightly.

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.

RTS Microsoft Pedestrian Bridge

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10.14
Contact: Jay Cooper, WSDOT Regional Transit Coordination, 206-716-1102
Description: Microsoft contractor crews are constructing a pedestrian bridge to the Microsoft campus.
Project webpage.
Work schedule:

  • Monday, Nov. 11, to the morning of Saturday, Nov. 16 - The two left lanes in both directions of SR 520 between 148th Avenue Northeast and 140th Avenue Northeast will close from 10 p.m. to 5 a.m. nightly.
  • Friday, Nov. 15, to the morning of Saturday, Nov. 16 – The Northeast 40th Street on-ramp to westbound SR 520 will close from 10 p.m. to 6 a.m.
  • Friday, Nov. 15, to the morning of Saturday, Nov. 16 – All lanes of the westbound SR 520 collector-distributor lanes at Northeast 40th Street will close from 10 p.m. to 6 a.m.
  • Monday, Nov. 18, to the morning of Saturday, Nov. 23 - The two left lanes in both directions of SR 520 between 148th Avenue Northeast and 140th Avenue Northeast will close from 10 p.m. to 5 a.m. nightly.
  • Tuesday, Nov. 19, to the morning of Saturday, Nov. 23 – The Northeast 40th Street on-ramp to westbound SR 520 will close from 10 p.m. to 5 a.m.
  • Tuesday, Nov. 19, to the morning of Saturday, Nov. 23 – All lanes of the westbound SR 520 collector-distributor lanes between Northeast 51st Street and Northeast 40th Street will close from 10 p.m. to 5 a.m.

City of Redmond - NE 51st Street Improvement Project

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10.72
Contact: Eric Dawson, City of Redmond Project Engineer, 425-556-2867
Description: City of Redmond contractor crews are improving signal efficiency and installing bike lanes.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

Sound Transit's Redmond Link Extension - R200

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 12.19 - 12.83
Contact: Ryan Bianchi, Sound Transit, 206-398-5070
Description: Sound Transit crews are constructing the Redmond Link light rail extension from Bellevue to Redmond.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.