I-90 & SR 520 construction

Last update: 4:30 p.m. Friday, April 12

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

I-90

Two-Way Transit & HOV Operations (Stage 3) - #8662

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 2.48 - 9.28
ContactAleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are performing work inside the Mount Baker and Mercer Island Lid tunnels in preparation for the Sound Transit East Link light rail extension.
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:

  • Monday, April 29, to Friday, May 3 – The Island Crest Way HOV on-ramp to westbound I-90 will be closed from 9 a.m. to 3 p.m. daily.
  • Monday, April 29, to Friday, May 3 – The eastbound I-90 HOV off-ramp to Island Crest Way will be closed from 9 a.m. to 3 p.m. daily.
  • Monday, April 29, to Friday, May 3 – The HOV lane of westbound I-90 at East Mercer Way will be closed from 10 a.m. to 2 p.m. daily.

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, April 28, to the morning of Friday, May 3 – Up to three right lanes of eastbound I-90 between SR 18 and 468th Avenue Southeast will be closed from 8 p.m. to 6 a.m. nightly.
  • Sunday, April 28, to the morning of Wednesday, May 1 – The two left lanes of eastbound I-90 between Southeast High Point Way/270th Avenue Southeast and Southeast 82nd Street will be closed from 8 p.m. to 6 a.m. nightly.

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

  • Until further notice - The Bellevue Way Southeast HOV ramp to westbound I-90 will be closed.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The Richards Road on-ramp to westbound I-90 will be closed from 9 p.m. to 5 a.m. nightly.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The left lane of westbound I-90 between Richards Road and Bellevue Way Southeast will be closed from 11 p.m. to 5 a.m. nightly.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The right lane of westbound I-90 between Richards Road and Bellevue Way Southeast will be closed from 11 p.m. to 5 a.m. nightly.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The northbound I-405 ramp to westbound I-90 will be closed from 10 p.m. to 5 a.m. nightly.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The southbound I-405 ramp to westbound I-90 will be closed from 10 p.m. to 5 a.m. nightly.
  • Wednesday, May 1, to the morning of Thursday, May 2 – The southbound I-405 ramp to the westbound I-90 HOV lane will be closed from 8 p.m. to 5 a.m. nightly.
  • Thursday, May 2, to the morning of Friday, May 3 – The right lane of westbound I-90 between I-405 and Bellevue Way Southeast will be closed from 8 p.m. to 5 a.m. nightly.
  • Monday, April 29, to the evening of Friday, May 3 – Flaggers will alternate traffic on Southeast 30th Street from 6 a.m. to 5 p.m. daily.
  • Monday, April 29, to Friday, May 3 – The right lane of Bellevue Way Southeast at 113th Avenue Southeast/Southeast 30th Street will be closed from 7 a.m. to 2 p.m. daily.

Bellevue Sign Maintenance

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 9.14
Contact: Thomas Charlson, Communications, 206-440-4469
Description: WSDOT maintenance crews are repairing an overhead sign.
Work schedule

  • Sunday, April 14 - The eastbound I-90 HOV ramp to Bellevue Way will be closed from 5 a.m. to 9 a.m. 

EB I-90 to SR 18 Active Warning Sign & Camera - #9282

Highway: I-90    Region: Northwest    County: King    Location: Milepost(s) 23.00 - 25.73
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are installing two active warning signs and a traffic camera on eastbound I-90 in Snoqualmie.
Work schedule:

  • No lane or ramp closures are scheduled.

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.

Bellevue Tree Trimming

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 4.59 - 5.17
Contact: Thomas Charlson, Communications, 206-440-4469
Description: WSDOT maintenance crews will trim trees along SR 520. 
Work schedule: 

  • Sunday, April 14 - The right lane of eastbound SR 520 between 84th Avenue and 92nd Avenue will be closed from 6:30 a.m. to 3 p.m.

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:

  • Friday, April 26, to the morning of Saturday, April 27 – The eastbound SR 520 off-ramp to 148th Avenue Northeast will be closed from 10 p.m. to 5 a.m. nightly.
  • Wednesday, April 24, to the morning of Saturday, April 27 – The 148th Avenue Northeast on-ramp to eastbound SR 520 will be closed from 10 p.m. to 5 a.m. nightly.
  • Wednesday, April 24, to the morning of Saturday, April 27 – One HOV lane and one general purpose lane of eastbound SR 520 between 148th Avenue Northeast and Northeast 36th Street will be closed from 10 p.m. to 5 a.m. nightly.
  • Monday, April 24, to the morning of Saturday, April 27 – All lanes in both directions of Northeast 36th Street between Augusta Drive and 156th Avenue Northeast will be closed from 9 p.m. to 6 a.m. nightly.

City of Redmond Ramp Split

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 10.00
Contact: John Mork, City of Redmond Project Manager, 425-556-2713
Description: City of Redmond contractor crews are splitting the eastbound SR 520 off-ramps to Northeast 40th/51st Streets.
Project webpage
Work schedule:

  • No lane or ramp closures scheduled.