Work on viaduct, Battery Street Tunnel and Aurora Avenue North begins later this week

Posted on Feb 12 2019 5:17 PM

Update 2/15/19 9:00 a.m.: The closure of Aurora Avenue North between Harrison St and Denny Way will occur tonight.

Update 2/13/19 11:50 a.m.: The closure of Aurora Avenue North between Harrison St and Denny Way planned for tonight will be rescheduled for a later date.

With the SR 99 tunnel open, work can begin on removing SR 99’s old route through downtown Seattle. This big project is broken up into three work areas: removing the Alaskan Way Viaduct, filling and sealing the Battery Street Tunnel, and building North Surface Street connections along Aurora Avenue North.

The recent snow has made the start of work unpredictable, as icy roads are making it difficult to get equipment to the job site. Below is what to expect from construction this week, although further weather developments, especially icy roads, could change these plans further.

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Viaduct removal: What to expect the rest of this week

  • Overview:
    • The main challenge with starting viaduct demolition is having safe roads for trucks that need to carry machinery to the job site and haul away demolition debris. The new dates below could change if road conditions improve or deteriorate from what current forecasts predict.
  • Columbia Street on-ramp
    • Demolition was previously scheduled to begin today, Feb. 12. Now, due to current weather conditions, crews plan to begin later this week.
    • Crews will continue preparing the site this week in preparation for demolition.
    • Crews will work on the ramp east to west. Fencing will extend west along the structure as demolition progresses.
    • Columbia ramp removal will follow the process outlined on our website.
  • Viaduct between Blanchard and Battery streets
    • Demolition was previously scheduled to begin today, Feb. 12. Now, due to current weather conditions, crews plan to begin demolition later this week.
    • Crews will continue preparing the site this week in preparation for demolition.
    • Crews will remove the viaduct starting at Battery Street and working south. Fencing will extend south along the structure as demolition progresses.
    • Viaduct removal will follow the process outlined on our website.
  • Viaduct between Pike and Virginia streets
    • Demolition was previously scheduled to begin today, Feb. 12. Now, due to current weather conditions, crews plan to begin demolition later this week.
    • Crews will continue preparing the site this week in preparation for demolition..
    • Viaduct removal will follow the process outlined on our website.

 

Battery Street Tunnel: What to expect the rest of the week

  • Initial work will take place inside the tunnel, as well as staging equipment and trailers at the south end of the tunnel.
  • While crews are working in the tunnel, the ventilation fans will run intermittently from 7 a.m. to 5 p.m. weekdays. Keeping the fans on provides fresh air for crews working in the tunnel. This safety measure will be maintained until fall 2019.
  • Crews will place plastic sheeting at the Battery Street Tunnel’s north end. This sheeting helps contain debris generated from the early work occurring inside the tunnel.

 

North surface streets: What to expect the rest of the week

  • An overnight closure of Aurora Avenue North between Harrison Street and Denny Way had been planned for Feb. 11. This been rescheduled.
  • The closure could occur as early as tomorrow night, or at a later date depending on weather, transit and construction considerations. During the closure, the southbound lane will be closed 8 p.m. – 5 a.m. The northbound lane will close an hour later, at 9 p.m., and will also reopen by 5 a.m.
  • This closure will allow crews to install protective barrier around the center median work zone where the first phase of this project will occur.
  • Visit King County Metro's website for the latest on bus routes during inclement weather.

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