Downtown Seattle and SODO construction

Last update: 1:10 p.m. Monday, Oct. 21

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:

  • Monday, Oct. 21 - The northbound I-5 express lanes will close at 10 p.m. for maintenance. 

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, Oct. 21, to the morning of Friday, Oct. 25 - The four left lanes of northbound I-5 between South Boeing Access Road and Albro Place will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The three left lanes of northbound I-5 between Corson Avenue South and South Forest Street/6th Avenue will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The three right lanes of northbound I-5 between Corson Avenue South and South Forest Street/6th Avenue will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The South Spokane Street/West Seattle Bridge on-ramp to northbound I-5 will close from 9:45 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The westbound SR 520 ramp to northbound I-5 will close from 10 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The University Street on-ramp to northbound I-5 will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The Northeast Ravenna Boulevard on-ramp to southbound I-5 will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The two left lanes of northbound I-5 between Northeast 45th Street and Northeast Ravenna Boulevard will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The two right lanes of northbound I-5 between Northeast 45th Street and Northeast Ravenna Boulevard will close from 9 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The northbound I-5 off-ramp to Northeast 45th Street will close from 10 p.m. to 5 a.m. nightly.
  • High Impact - Monday, Oct. 21, to the morning of Friday, Oct. 25 - 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, Oct. 21, to the morning of Friday, Oct. 25 - The northbound I-5 off-ramp to Seneca Street will close from 11:59 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The northbound I-5 off-ramp to Edgar Martinez will close from 11:59 p.m. to 5 a.m. nightly.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - 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.

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

  • Monday, Oct. 21, to the morning of Friday, Oct. 25 – The eastbound I-90 ramp to northbound I-5 will close from 8 p.m. to 5 a.m. nightly.

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:

  • Wednesday, Oct. 23, to the morning of Friday, Oct. 25 – The right lane of 7th Avenue at 42nd Street will close from 9 p.m. to 4 a.m. nightly.

SR 99

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 are 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 are 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: Yesler Way between 1st Avenue and Alaskan Way will be closed. 
  • Monday, Oct. 21, to the evening of Friday, Oct. 25 - Northbound Alaskan Way lane reductions between Marion and Pike fom 7 a.m. to 5 p.m. daily. 

SR 99 Tunnel Tolling maintenance

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s) 32.75
Contact: Emily Glad, Communications, 206-455-1176
Description: WSDOT maintenance crews are revising pylon placement at the northbound SR 99 off-ramp to Dexter Avenue North. 
Work schedule:

  • Thursday, Oct. 24, to the morning of Friday, Oct. 25 - The northbound SR 99 off-ramp to Dexter Avenue North/Republican Street will close from 10:30 p.m. to 4:30 a.m. A signed detour will allow drivers to exit at Roy Street. 

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:

  • Sunday, Oct. 20, to the morning of Friday, Oct. 25 - Up to two lanes in each direction of SR 99 between the Aurora Bridge and North 145th Street will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent. 

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: 

  • Saturday, Oct. 19, to the morning of Sunday, Oct. 20 - The two right lanes of northbound SR 99 over the Aurora bridge will close from 9 p.m. to 5 a.m.
  • Monday, Oct. 21, to the morning of Friday, Oct. 25 - The two right lanes of northbound SR 99 over the Aurora bridge will close from 9 p.m. to 5 a.m. nightly. 

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:

  • Thursday, Oct. 24, to the morning of Friday, Oct. 25 – The right lane of eastbound SR 520 between Lake Washington Boulevard and Portage Bay will close from 9 p.m. to 5 a.m.