Turbidity curtain installation occurring next week

A turbidity curtain, a floating barrier to prevent soil and sediment dispersing through the bay, will be installed along the central waterfront, to prepare for upcoming construction. Utility investigation and relocation activities will also occur on Alaskan Way at various locations at night.

To learn more about what to expect during season 2 of construction, check out the latest seawall construction toolkit


What you can expect next week:

  • A new construction zone will be outlined by fencing between Pike and Madison streets. Parking along the west side of the Alaskan Way Viaduct will be removed between Pike and Madison streets.
  • Cranes, drills, trucks, fencing, and other large equipment will be mobilized and set-up along the central waterfront.
  • Landside sheet piles to be removed in the work zone south of Colman Dock.
  • Face panel installation south of Colman Dock.
  • A turbidity curtain will be installed along the length of the waterfront.
  • Under pier utility work along the central waterfront will continue.
  • Utility investigation and relocation work will occur overnight at various locations along the waterfront between Seneca and Columbia streets.
  • Seattle City Light will conduct electrical relocation work at night in various locations along the waterfront.
  • Trenching work will occur at night from Pike to Pine streets adjacent to and east of the surface parking lot in this block. 
  • Roadway preparation work will occur at Madison Street.
  • Ongoing tree removal will continue to prepare for work along the central waterfront. 
  • The multi-use path along the west side of the Alaskan Way Viaduct will be closed between Pike and Madison streets for approximately three weeks. The temporary closure will be staggered by block and is needed to allow mobilization of construction equipment and to establish the work zone.
  • A jet grout plant will be installed at Seneca Street east of the Alaskan Way Viaduct. 
  • Cranes will be mobilized for private construction work along Alaskan Way. Signage removal and other construction activities will also occur in front of the piers with local vehicle and pedestrian detours in place.

For more detail, please read below:

  • Landside sheet pile removal in the work zone south of Colman Dock will require the use of heavy equipment. For short intervals, there will be noise and vibration coming from the site as machinery is used to loosen each sheet pile before it is pulled out of the ground. This work is planned to be complete next week.
  • Ongoing utility investigation and relocation work is scheduled for next week between 11 pm and 7 am under the viaduct on Alaskan Way between Seneca and Columbia streets. Traffic detours will be in place to safely guide traffic around the work zones.
  • Trenching work between Pine and Pike streets will occur between 10 pm and 10 am. Local detours will be in place overnight and steel plates will cover the work area during the day.

For questions about Seawall construction, send us an email at seawall@waterfrontseattle.org or call our 24-hour hotline at 206.618.8584.