Downtown Seattle and SODO construction

Last update: 5 p.m. Friday, Sept. 20

This information changes frequently so please check back often. Travelers can also call 5-1-1 or for real-time traffic and weather updates. For city street closure information check with the Seattle Department of Transportation.

I-5

Express Lanes Schedule Changes

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 165.29 - 172.43
ContactThomas Charlson, Communications, 206-440-4699
Description: The I-5 express lanes are used 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:

  • Friday, Sept. 20, to the afternoon of Sunday, Sept. 22 - The Northgate Way express ramp to 1st Avenue Northeast and Northeast 103rd Street will close from 8 p.m. Friday to noon Sunday. 

SB S Lucile St to Spring St Pavement Repair - #9235

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 143.85 - 165.62
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are replacing broken concrete panels, grinding and repaving southbound I-5 and the collector/distributor between Spring Street and South Lucile Street in Seattle.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

NB MLK Jr Way to NE Ravenna Br Pavement Repair - #8952

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 157.44 - 170.28
Contact: Ed Kane, Project Engineer, 425-225-8743
Description: WSDOT contractor crews are replacing expansion joints and large sections of concrete pavement on northbound I-5 between MLK Junior Way South/SR 900 in Tukwila and Northeast Ravenna Boulevard in Seattle.
Project webpage
Work schedule:

  • Monday, September 16, to the morning of Friday, September 20 – The three left lanes of northbound I-5 between South Alaska Street and South Forest Street/6th Avenue will close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The three right lanes of northbound I-5 between South Alaska Street and South Forest Street/6th Avenue will close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The northbound I-5 off-ramp to West Seattle Bridge/Columbian Way will close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The Cherry Street on-ramp to northbound I-5 will close from 10 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The two right lanes of northbound I-5 between Pine Street and the Ship Canal Bridge close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The two left lanes of northbound I-5 between Pine Street and the Ship Canal Bridge will close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The northbound I-5 off-ramp to Lakeview Boulevard East will close from 11:59 p.m. to 4:30 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The University Street on-ramp to northbound I-5 will close from 9 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The 50th Street on-ramp to northbound I-5 will close from 10 p.m. to 5 a.m.
  • Monday, September 16, to the morning of Friday, September 20 – The two right lanes of northbound I-5 between Northeast 42nd Street and Northeast Ravenna Boulevard will close from 9 p.m. to 5 a.m. nightly.
  • High Impact – Monday, September 16, to the morning of Friday, September 20 – All lanes of the northbound I-5 mainline just north of the I-90 Interchange will close from 11:59 p.m. to 5 a.m. nightly. During this time, all traffic will be shifted to the collector-distributor lanes.
  • Monday, September 16, to the morning of Friday, September 20 – The northbound I-5 off-ramp to Seneca Street will close from 11:59 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The northbound I-5 off-ramp to Edgar Martinez will close from 11:59 p.m. to 5 a.m. nightly.
  • Monday, September 16, to the morning of Friday, September 20 – The South Spokane Street/West Seattle Bridge on-ramp to northbound I-5 will close from 11:59 p.m. to 5 a.m. nightly.
  • Thursday, September 19, to the morning of Friday, September 20 – The South Boeing Access Road on-ramp to northbound I-5 will close from 9 p.m. to 5 a.m.
  • Thursday, September 19, to the morning of Friday, September 20 – The two left lanes of northbound I-5 between Northeast 42nd Street and Northeast Ravenna Boulevard will close from 9 p.m. to 5 a.m.
  • High Impact – Saturday, Sept. 21, to the morning of Sunday, Sept. 22 – All lanes of the northbound I-5 mainline just north of the I-90 Interchange will be shifted to the collector-distributor lanes from 11:59 p.m. to 5 a.m. 
  • Saturday, Sept. 21, to the morning of Sunday, Sept. 22  – The northbound I-5 off-ramp to Edgar Martinez Way will close from 11:59 p.m. to 5 a.m. 
  • Saturday, Sept. 21, to the morning of Sunday, Sept. 22 - The northbound I-5 off-ramp to Seneca Street will close from 11:59 p.m. to 5 a.m. 

Sound Transit's East Link Extension - E130

Highway: I-5    RegionNorthwest    County: King    Location: Milepost(s) 164.00
ContactZack 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

  • No lane or ramp closures are scheduled.

Washington State Convention Center & Freeway Park Tunnels Lighting Controls Upgrade - #9331

Highway: I-5    RegionNorthwest    County: King    Location: Milepost(s) 165.00 - 165.75
ContactEvelyn Pao, Project Engineer, 206-440-4981
Description: WSDOT contractor crews will upgrade the lighting control under the Convention Center.
Work schedule

  • No lane or ramp closures are scheduled.

Express Lanes Entrances Electronic Sign Replacement - #9272

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 165.39 - 172.61
Contact: Ed Kane, Project Engineer, 425-225-8743
Description: WSDOT contractor crews are replacing the sign structures and brackets, along with the electrical and fiber optic systems at seven entrances to the I-5 express lanes. A few of the sign structures will also be redesigned to create a better viewing angle.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

Ship Canal Bridge Maintenance

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 168.02 - 169.39
Contact: Joseph Calabro, Communications, 206-440-4452
Description: WSDOT bridge maintenance crews will make repairs to the bridge deck.
Work schedule:

  • No lane or ramp closures are scheduled.

SR 99

Seattle maintenance

Highway: SR 99  RegionNorthwest    County: King    Location: Milepost(s) 28.6 - 29.8
Contact: Joseph Calabro, communications, 260-440-4452
Description: WSDOT maintenance crews will install new signs and pavement markings. 

  • Friday, Sept. 20, to the morning of Sunday, Sept. 22 - The two right lanes of northbound SR 99 between the West Seattle Bridge and the off-ramp to Alaskan Way South will close from 10 p.m. to 5 a.m. nightly. This work is weather-dependent. 

SR 99 Tunnel Maintenance

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s) 30.36 - 32.86
Contact: Thomas Charlson, Communications, 206-440-4699
Description: WSDOT maintenance crews are checking operational systems inside the SR 99 tunnel. 
Work schedule:

  • No lane or ramp closures scheduled. 

Alaskan Way Viaduct Replacement Project - #9160

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s) 30.36 - 32.86
Contact: Laura Newborn, Communications, 206-805-2871
Description: WSDOT contractor crews are building a new SR 99 tunnel in downtown Seattle.
Project webpage
Work schedule:

  • No lane or ramp closures scheduled.

Alaskan Way Viaduct Demolition, Decommissioning & Surface Street Project - #9127

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s) 30.36 - 32.86
Contact: Laura Newborn, Communications, 206-805-2871
Description: WSDOT contractor crews are demolishing the Alaskan Way Viaduct in downtown Seattle. 
Project webpage
Work schedule:

  • Until further notice - The right lane of northbound Alaskan Way between King Street and Washington Street will be closed. 
  • Until further notice - Jackson Street between 1st Avenue and Alaskan Way will be closed. 
  • Until further notice - Thomas Street between 6th Avenue and 7th Avenue will be closed. 
  • Until further notice - Lane reductions on Alaskan Way between Yesler and Madison. 
  • Until further notice - Marion Street between 1st Avenue and Alaskan Way wll be closed.
  • Until further notice - Denny Way between 6th Avenue and Aurora will be closed. 

Roy St to N 145th St Paving & ADA Compliance - #9256

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 32.90 - 40.48
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are grinding and repaving both directions of SR 99 between Roy Street and North 145th Street in Seattle. Dozens of curb ramps are also being rebuilt or added to provide better sidewalk connections for people of all abilities.
Project webpage
Work schedule:

  • Monday, Sept. 23, to the morning of Friday, Sept. 25 - Up to two lanes in each direction of SR 99 between Roy Street and North 145th Street will close from 7 p.m. to 5 a.m. nightly. 

Aurora Bridge Painting (Stage 2) - #9168

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 34.17 - 34.73
Contact: Ed Kane, Project Engineer, 425-225-8743
Description: WSDOT contractor crews are cleaning and repainting the SR 99 Aurora Bridge. Crews are also grinding and repaving the driving surface of the bridge.
Project webpage
Work schedule: 

  • No lane or ramp closures scheduled

SR 99 Aurora Bridge Inspection

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 34.17 - 34.73
Contact: Joseph Calabro, communications, 206-440-4452
Description: WSDOT maintenance crews will inspect the SR 99 Aurora bridge. 
Work schedule: 

  • Saturday, Sept. 21 and Sunday, Sept. 22 - The right lane in each direction of SR 99 over the Aurora bridge will close from 5 to 11 a.m. daily.

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

Highway: SR 520    Region: Northwest    County: King    Location: Milepost(s) 0.29 - 3.00
Contact: SR 520 Bridge Replacement & HOV Program, 206-770-3554
Description: WSDOT contractor crews are making safety and mobility improvements on SR 520 between Lake Washington and I-5.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.