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Weekly update of construction closures in Downtown Seattle and SODO

Last update: 6:25 p.m. Friday, July 20

This webpage contains information about WSDOT construction projects affecting vehicle or pedestrian traffic through downtown Seattle and SODO. If a highway is not listed below, there are no scheduled lane closures at this time, although emergency lane closures may still occur.

This information changes frequently so please check back often. Travelers can also call 5-1-1 or monitor @WSDOT_Traffic on Twitter for real-time traffic and weather updates.

City street closure information: Check with the Seattle Department of Transportation or monitor @SDOTtraffic on Twitter.

| I-5 | I-90 | SR 99 | SR 513 | SR 520 | Traffic Impacts Calendar |

Express Lanes Schedule Changes

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 165.29 - 172.43
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT uses the I-5 express lanes 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, July 23, to Thursday, July 26 - The 9th and Pike Street on-ramp to the northbound I-5 express lanes will close at 9 p.m. nightly for Washington State Convention Center construction work.
  • Friday, July 27, to Saturday, July 28 - The northbound I-5 express lanes will close at 9:30 p.m. and open in the southbound direction by 10 p.m. through the overnight hours into the normal weekend schedule
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: Dave Lindberg, Project Engineer, 425-225-8725
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:

LANE CLOSURES

  • No lane or ramp closures are scheduled.

RAMP CLOSURES

  • No lane or ramp closures are scheduled.
SB S Lucile St to Spring St Pavement Repair & ADA - #9235

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 161.68 - 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.
Sound Transit's East Link Extension - E130

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

  • No lane or ramp closures are scheduled.
Express Lanes Entrances Electronic Sign Replacement

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 165.39 - 172.61
Contact: Dave Lindberg, Project Engineer, 425-225-8725
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.
Downtown Seattle Fire Suppression System Testing

Highway: I-5    Region: Northwest    County: King    Location: Milepost(s) 165.50 - 172.61
Contact: Nathen Hower, WSDOT Maintenance, 206-440-5206
Description: WSDOT maintenance crews are performing fire suppression system testing on I-5 underneath the Washington State Convention Center in downtown Seattle.
Work schedule:

  • Friday, July 20, to the morning of Saturday, July 21 - The Cherry Street on-ramp to northbound I-5 will be closed from 11:59 p.m. to 6 a.m.
  • **HIGH IMPACT** Saturday, July 21 - Northbound I-5 traffic will be reduced to one lane between Cherry Street and Olive Way from 12:30 to 5:30 a.m.
  • **HIGH IMPACT** Friday, July 27, to the morning of Saturday, July 28 - All lanes of southbound I-5 between Stewart Street and Spring Street will be closed from 11:59 p.m. to 5 a.m.
  • Friday, July 27, to the morning of Saturday, July 28 - The Mercer Street on-ramp to southbound I-5 will be closed from 11:59 p.m. to 5 a.m.
  • Friday, July 27, to the morning of Saturday, July 28 - The Yale Street on-ramp to southbound I-5 will be closed from 11:59 p.m. to 5 a.m.
Ship Canal Bridge Deck Repair Work

Highway: I-5    Region: Northwest     County: King    Location: Milepost(s) 167.02 - 168.00
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT maintenance crews are performing deck repair work on the I-5 Ship Canal Bridge in Downtown Seattle.
Work schedule:

  • Saturday, July 28 & Sunday, July 29 - Northbound I-5 traffic will be reduced to two lanes between SR 520 and Northeast 45th Street from 2 to 10 a.m. daily. This work is weather dependent.
  • Sunday, July 29 - The Harvard Street on-ramp to northbound I-5 will be closed from 2 to 10 a.m. This work is weather dependent.
  • No lane or ramp closures are scheduled.
S Cloverdale St to Duwamish River Paving & ADA Compliance - #9239

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 25.90 - 30.00
Contact: Aleta Borschowa, Project Engineer, 206-768-5601
Description: WSDOT contractor crews are repaving the roadway and replacing the ADA ramps between the sidewalk and the street at some locations, which will provide better sidewalk connections for people of all abilities
Project webpage
Work schedule:

  • Sunday, July 22, to the morning of Monday, July 23 - The two left lanes of northbound State Route 509 between South 112th Street and W. Marginal Way/SR 99 will be closed from 8 p.m. to 5 a.m.
  • Sunday, July 22, to the morning of Monday, July 23 - The two right lanes of southbound State Route 509 between South 112th Street and W. Marginal Way/SR 99 will be closed from 8 p.m. to 5 a.m.
Alaskan Way Viaduct Replacement Project

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 through downtown Seattle.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

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 construction crews are grinding and repaving 7.5 miles of SR 99/Aurora Avenue North between Roy Street and North 145th Street in Seattle. Dozens of pedestrian ramps will also be rebuilt.
Project webpage
Work schedule:

  • Monday, July 23, to Friday, July 27 - The right lane in each direction of State Route 99 between Roy Street and North 145th Street will be closed from 9 a.m. to 3 p.m. daily.
Aurora Bridge Painting (Stage 2) - #9168

Highway: SR 99    Region: Northwest    County: King    Location: Milepost(s) 34.17 - 34.73
Contact: Dave Lindberg, Project Engineer, 425-225-8725
Description: WSDOT construction crews are cleaning and repainting the Aurora Bridge. Crews are also grinding and repaving the driving surface of the bridge, and repairing seven expansion joints.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

West Approach Bridge North - #8625

Highway: SR 513    Region: Northwest    County: King    Location: Milepost(s) 0.00
Contact: Steve Strand Project Engineer, 206-770-3565
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.
Project webpage
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: Steve Strand, Project Engineer, 206-770-3565
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.
Project webpage
Work schedule:

  • No lane or ramp closures are scheduled.

Plan ahead by checking for major traffic impacts on all state highways.