Downtown Seattle and SODO construction

Last update: 3 p.m. Monday, May 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:

  • Saturday, May 25 – Express lanes will be open in the southbound direction from 10:30 a.m. to 1:30 p.m.
  • Saturday, May 25 – Express lanes will be open in the northbound direction from 1:45 to 11:00 p.m.
  • Monday, May 27 – Express lanes will be open in the southbound direction from 10:30 a.m. to 1:30 p.m.
  • Monday, May 27 – Express lanes will be open in the northbound direction from 1:45 to 11:00 p.m.

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:

  • High Impact - Monday, May 13, to the morning of Friday, May 17 - All lanes of the southbound I-5 collector-distributor at Airport Way will be closed from 11 p.m. to 4:30 a.m. nightly. During this time, all traffic will exit at Airport Way and follow the signed detour in place (pdf 291 kb) to access southbound I-5. This work is weather-dependent.
  • Monday, May 13, to the morning of Friday, May 17 - The Spring Street on-ramp to southbound I-5 will be closed from 10 p.m. to 5 a.m. nightly. This work is weather-dependent. 
  • Monday, May 13, to the morning of Friday, May 17 - The 6th Avenue/James Street on-ramp to southbound I-5 will be closed from 9 p.m. to 5 a.m. nightly. This work is weather-dependent. 
  • High Impact - Friday, May 17, to the morning of Saturday, May 18 - All lanes of the southbound I-5 collector-distributor at Airport Way will be closed from 10 p.m. to 7 a.m. During this time, all traffic will exit at Airport Way and follow the signed detour in place (pdf 291 kb) to access southbound I-5. This work is weather-dependent.
  • Friday, May 17, to the morning of Saturday, May 18 - The Spring Street on-ramp to southbound I-5 will be closed from 9 p.m. to 8 a.m. This work is weather-dependent. 
  • Friday, May 17, to the morning of Saturday, May 18 - The 6th Avenue/James Street on-ramp to southbound I-5 will be closed from 9 p.m. to 8 a.m. This work is weather-dependent. 

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 37 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, May 20, to the morning of Wednesday, May 22 – The two left lanes of southbound I-5 between Pine Street and Marion Street will close from 11 p.m. to 5 a.m. nightly.
  • Thursday, May 23, to the morning of Friday, May 24 – The two left lanes of southbound I-5 between Pine Street and Marion Street will close from 11 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.

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

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:

  • Monday, May 20, to the evening of Thursday, May 23 – The right lane of East Marginal Way between Dearborn Street and Atlantic Street will close from 9 a.m. to 5 p.m. daily.
  • Monday, May 20, to the evening of Thursday, May 23 – The right lane of Alaskan Way South between King Street and Washington Street will close from 9 a.m. to 5 p.m. daily.
  • Wednesday, May 15, to the morning of Saturday, May 18 – The northbound SR 99 off-ramp to South Dearborn Street/Alaskan Way South will close from 9 p.m. to 5 a.m. nightly.

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 - Westbound Madison Street between Alaskan Way and 1st Avenue will be closed. 
  • Until further notice - Eastbound Spring Street between Alaskan Way and 1st Avenue will be closed. 
  • Until further notice - Eastbound Seneca Street between Alaskan Way and Post Avenue will be closed. 
  • Until further notice - Union Street between Alaskan Way and 1st Avenue will be closed.
  • Until further notice - The left lane of northbound Aurora Avenue between Denny Way and Harrison Street 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:

  • Sunday, May 12, to the morning of Monday, May 13 - The BAT lane and right general purpose lane of northbound SR 99 between Roy Street and the Aurora Bridge will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent.
  • Monday, May 13, to the morning of Tuesday, May 14 - Two general purpose lanes of northbound SR 99 between Roy Street and the Aurora Bridge will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent.
  • Tuesday, May 14, to the morning of Wednesday, May 15 - The BAT lane and two general purpose lanes of northbound SR 99 between Roy Street and the Aurora Bridge will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent.
  • Thursday, May 16, to the morning of Friday, May 17 - The BAT lane and right general purpose lane of northbound SR 99 between Roy Street and the Aurora Bridge will close from 9 p.m. to 5 a.m. nightly. This work is weather-dependent.
  • Sunday, May 19, to the morning of Wednesday, May 22 - The BAT lane and right general purpose lane of northbound SR 99 between Roy Street and the Aurora Bridge will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent.
  • Sunday, May 19, to the morning of Friday, May 24 - The Harrison Street on-ramp to northbound SR 99 will close from 7 p.m. to 5 a.m. nightly. This work is weather-dependent.

* The BAT lane is the Business Access & Transit lane. 

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, May 18, to the morning of Friday, May 24 – One lane in each direction over the Aurora Bridge will be closed from 9 p.m. to 5 a.m. nightly. 

SR 513

West Approach Bridge North - #8625

Highway: SR 513    Region: Northwest    County: King    Location: Milepost(s) 0.00
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.

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.