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Weekly update of construction closures in Downtown Seattle and SODO

Last update: 5:15 p.m. Thursday, June 22

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: Make sure to check with the Seattle Department of Transportation online or monitor @SeattleDOT on Twitter.

| I-5 | I-90 | SR 99 | SR 513 | SR 520 |

Seattle PrideFest Ramp Closure

Highway: I-5 Region: Northwest County: King Location: Milepost(s) 165.00
Contact: Nicole Daniels, Communications, 206-440-4479
Description: The City of Seattle is closing the southbound I-5 off-ramp to Union Street for the PrideFest parade.
Work schedule:

  • Sunday, June 25 - The southbound I-5 off-ramp to Union Street will be closed from 9:30 a.m. to 3:30 p.m.

Ship Canal Bridge Deck Repair Work

Highway: I-5 Region: Northwest County: King Location: Milepost(s) 168.34
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT maintenance crews are performing concrete bridge deck repair work on northbound I-5 in Seattle.
Work schedule:

  • **HIGH IMPACT** Saturday, June 24, to the morning of Sunday, June 25 - Northbound I-5 traffic will be reduced to two lanes on the Ship Canal Bridge from 2 to 10 a.m. daily.
  • Sunday, June 25 - The Harvard Street on-ramp to northbound I-5 will be closed from 2 to 10 a.m.
No lane or ramp closures are scheduled.
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.

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 website
Work schedule:

  • No lane or ramp closures are scheduled.

Seattle to Bellevue Sign Maintenance Work

Highway: SR 520 Region: Northwest County: King Location: Milepost(s) 0.00 - 8.00
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT crews are performing annual preventative sign maintenance work on SR 520 between Seattle and Bellevue.
Work schedule:

  • **HIGH IMPACT** Saturday, June 24, to the morning of Sunday, June 25 - Both directions of SR 520 between I-5 and 148th Avenue Northeast will be reduced to one lane intermittently beginning with the westbound lanes at 11:59 p.m. Once the westbound work is complete, crews will operate in the same area in the eastbound lanes. All lanes will reopen by 6 a.m.
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:

  • Monday, June 19, to the morning of Friday, June 23 - Two right lanes of westbound SR 520 on the floating bridge will be closed from 9 p.m. to 6 a.m. nightly.

Traffic Impacts Calendar

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