Downtown Seattle and SODO construction

Last update: 10:45 a.m. Tuesday, Nov. 26

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:

  • 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, Nov. 25, to the morning of Wednesday, Nov. 27 – All lanes of the northbound I-5 collector-distributor at I-90 will close from 11 p.m. to 4:30 a.m. nightly.
  • Monday, Nov. 25, to the morning of Wednesday, Nov. 27 – The northbound I-5 off-ramp to Columbian Way and the West Seattle Bridge will close from 11 p.m. to 5 a.m. nightly.
  • Monday, Nov. 25, to the morning of Wednesday, Nov. 27 – The right two lanes of northbound I-5 between Northeast 45th street and Northeast 50th street will close from 11 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

  • Sunday, Nov. 24, to the morning of Wednesday, Nov. 27 – The two lanes of southbound I-5 at the I-90 Interchange will close from 9 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:

  • No lane or ramp closures are scheduled.

SR 99

Breakaway Cable Terminal Replacement - #9441

Highway: SR 99   Region: Northwest    County: King    Location: Milepost(s) 26.01
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, Dec. 2, to the morning of Wednesday, Dec. 4 – The right lane of southbound SR 99 between South Holden Street and South Kenyon Street will be closed from 9 p.m. to 5 a.m. nightly.

First Avenue South Bridge Maintenance

Highway: SR 99    RegionNorthwest    County: King    Location: Milepost(s) 27.00
Contact: Joseph Calabro, Communications, 206-440-4452
Description: WSDOT maintenance crews are making repairs to the grid deck of the First Avenue South Bridge.
Work schedule:

  • No lane or ramp closures scheduled.

King County Wastewater Treatment

Highway: SR 99   Region: Northwest    County: King    Location: Milepost(s) 27.17
Contact: Norm Mah, King County WTD, 206-263-0195
Description: Construction to install the conveyance pipes on South Michigan Street and East Marginal Way South continues through the end of the year.
Project details
Work schedule:

  • Until further notice - The on-ramp to southbound SR 99 at the corner of East Marginal Way South and South Michigan Street will be closed from 10 p.m. to 5 a.m. nightly (Monday through Thursday). Occasional Sunday closures from 8 p.m. to 5 a.m. are also possible.

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:

  • Friday, Dec. 6, to the morning of Saturday, Dec. 7 - The southbound SR 99 tunnel will close from 10 p.m. to 8 a.m.

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:

  • Monday, Nov. 11, to the afternoon of Friday, Nov. 15 - The right lane of eastbound Battery Street between 4th and 5th will close from 7 a.m. to 3 p.m. daily. 
  • Until 6 p.m. Friday, Nov. 22 - Thomas Street between 6th and 7th Avenue will be closed.
  • Saturday, Nov. 16–The right lane of northbound Aurora Avenue between Denny Way and Harrison Street will be closed from 6:30 a.m. to 5 p.m.
  • Saturday, Nov. 16–The right lane of eastbound Battery Street between Second Avenue and Fourth Avenue will be closed from 7 a.m. to 5 p.m.
  • Saturday, Nov. 16–The right lane of southbound First Avenue between Wall Street and Bell Street will be closed from 7 a.m. to 5 p.m.
  • Saturday, Nov. 16–The right lane of southbound Second Avenue between Battery Street and Bell Street will be closed from 7 a.m. to 5 p.m.
  • Saturday, Nov. 16–John Street will be closed between Sixth Avenue and Dexter Avenue from 6:30 a.m. to 5 p.m.
  • Monday, Nov. 25 to the morning of Thursday, Nov. 28 – The right lane of eastbound Battery Street between Second Avenue and Fourth Avenue will be closed from 7 p.m. to 5 a.m. nightly. 
  • Monday, Nov. 25 to the morning of Thursday, Nov. 28 – The right lane of southbound First Avenue between Wall Street and Bell Street will be closed from 7 p.m. to 5 a.m. nightly. 
  • Monday, Nov. 25 to the morning of Thursday, Nov. 28 – The right lane of southbound Second Avenue between Battery Street and Bell Street will be closed from 7 p.m. to 5 a.m. nightly. 

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, Nov. 25, to the morning of Wednesday, Nov. 27 – Two lanes in each direction of SR 99 between Winona Street and North 145th Street will be closed 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.

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:

  • Monday, Nov. 25, to the afternoon of Tuesday, Nov. 27 – A flagger will alternate traffic on Lake Washington Boulevard between East Roanoke Street to 24th Avenue East from 10 a.m. to 3 p.m. daily.