Latest Program News

  • Alaskan Way narrowed, First Avenue restored near SR 99 tunnel’s south portal

    Map showing traffic conditions on and near Alaskan WayCrews are demolishing the southern-most remaining section of the Alaskan Way Viaduct. The ramps that once carried traffic onto and off the structure are gone, and crews are working along Railroad Way South, moving their way north.

    The lane reduction on First Avenue South near South Dearborn Street has been lifted, but Alaskan Way has again been reduced to one lane in each direction between South King Street and South Dearborn Street. Drivers should expect possible increased congestion during heavy driving times around the SR 99 on-ramp and off-ramp at South Dearborn Street.

    Around July 15, a second crew is scheduled to begin preparing to demolish the viaduct starting at Yesler Way and work their way south. You can follow progress by subscribing to our Friday construction email updatesbrowsing our interactive tracker, and checking out photos of the work on our Flickr site.

    Crews will return to remove the section of viaduct above South Dearborn Street later this summer or fall.

    Click on the map at right to enlarge. 

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  • Expect lane reductions as viaduct demolition works south to north

    The viaduct demolition contractor Kiewit is working on the viaduct’s remaining southern section around South Dearborn Street. Crews will be using several methods to remove the structure in this area, including both munching machines and cranes.

    Overhead map showing work areas for viaduct

    After removing the remaining viaduct structure south of South Dearborn Street, Kiewit will begin demolishing the viaduct by working from south to north. However, they will leave the span over South Dearborn Street standing until August.

    On or around July 12, a second crew is scheduled to begin preparing the worksite for removing the viaduct at Yesler Way. Demolition will begin about a week later, and this crew will work their way south. Working simultaneously, these two crews will work their way toward each other, removing this section of viaduct from both ends.

    Lane reductions on First Avenue South and Alaskan Way

    Crews will need safe work space to remove the viaduct, which means lane reductions and sidewalk closures for people walking, biking and driving in the area. The map at right and the list below contain the planned roadway changes over the next several weeks.

    These dates are based on the contractor's schedule and could change:

    • Tomorrow: First Avenue reduces to one lane in each direction near CenturyLink Field, south of South Dearborn Street. This narrowing will not extend past South Royal Brougham Way.
    • July: Streets between Yesler Way and South Dearborn Street will close at Alaskan Way while crews remove the viaduct running overhead.
    • Week of July 8: Railroad Way South closes both directions for four days.
    • Week of July 8: Lane reductions on Alaskan Way return north of South Dearborn Street.
    • Week of July 12: Yesler Way closes beneath the viaduct.
    • August: South Dearborn Street closes while crews remove the viaduct overhead.


    You can follow progress by subscribing to our Friday construction email updates, browsing our interactive tracker, and checking out photos of the work on our Flickr site.

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  • New pedestrian bridge to Colman Dock being assembled (but you can’t walk on it just yet)

    June 17, 2019 update: The overnight closure of Alaskan Way scheduled for tonight and tomorrow has been moved to Wednesday and Thursday this week.

    A new pedestrian-only bridge to Colman Dock is taking shape near Seattle’s waterfront. This week and next the contractor Kiewit will place a prefabricated walkway atop columns along Columbia Street and Western Avenue. Most of the columns were poured over the past several months but the new bridge is also supported by two columns that were left in place from the Columbia Street on-ramp.

    This new bridge will connect to the current Marion Street pedestrian bridge at Western Avenue, then run via Western Avenue and Columbia Street to Colman Dock. After placing the prefabricated walkway structure, electrical work and other follow-on work will occur before the bridge is complete.

    The current Marion Street pedestrian bridge will remain open until sometime in August, when Colman Dock construction is ready to open the new bridge. After the new bridge is operational, Kiewit will demolish the narrow section of viaduct left in place over the current pedestrian bridge.

    A section of the viaduct with no structure on either side and the Marion Street pedestrian bridge running beneath it

    Above: Kiewit left this section of the viaduct standing so the pedestrian bridge beneath it can remain open during viaduct demolition.

    When removing the section of freestanding viaduct structure around Marion Street, Kiewit will also remove part of the current pedestrian bridge from Colman Dock to the edge of the building just to the east. The bridge we are building this year will stay open for about five years until the City of Seattle’s Waterfront Project builds a new pedestrian bridge at Marion Street.

    Traffic effects this week and next

    • Columbia Street is closed from Western Avenue to Alaskan Way to place the bridge spans. This block of Columbia Street is scheduled to reopen on Wednesday, June 19. Sidewalks remain open.
    • Alaskan Way will close both directions between Marion Street and Yesler Way on Monday and Tuesday nights, 6/17 and 6/18 Wednesday and Thursday nights, 6/19 and 6/20. The closure will last from 9 p.m. to 5 a.m. and include the multi-use sidewalk on the west side of Alaskan Way. People traveling north and south along this stretch of waterfront at night should expect detours and delays.
    • Western Avenue between Marion and Columbia streets has been closed for several months while crews built the new pedestrian bridge. One northbound lane is scheduled to reopen on this block in the coming month.

     

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  • Marching south: demolition approaches the southern end of the viaduct

    The southern stretch of the Alaskan Way Viaduct was saved for last, and now its time is coming. WSDOT's contractor Kiewit is preparing to begin work on removing the section of viaduct that remains between Yesler Way and South Dearborn Street.

    Early this Friday morning Alaskan Way will be narrowed to one lane in each direction between South King Street and South Dearborn Street. Crews will use this space to establish a work zone so they can safely begin demolition later this month on the viaduct adjacent to Railroad Way South.

    Alaskan Way is a busy arterial in this area and a key connection to SR 99. Travelers approaching downtown from the south this summer should plan for longer drive times, especially during peak commute periods and on weekends. Consider taking transit and the King County Water Taxi as a driving alternative. Access routes to Colman Dock will remain unchanged for the moment.

    View of southern end of viaduct with work zone highlighted in orange

    Above: Alaskan Way will be reduced to one lane in each direction. The orange section of the viaduct is where demolition will begin later this month

    In July the contractor will add a second crew to the job of removing the viaduct's southern section. The plans for this work, including where that crew will start along the structure, are still being refined and we will share more information in the weeks to come. Drivers should expect that at some point streets connecting Alaskan Way to First Avenue South will close beneath the viaduct, and additional stretches of Alaskan Way will be narrowed. People traveling along Alaskan Way, especially to and from Colman Dock, should expect higher than normal congestion in the area through the end of August as we conclude work on one major component of the Seattle Squeeze.

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