Special Project of the Washington State Convention Center

Construction Updates. Click HERE

Construction Updates

Construction Updates

The project team has obtained the Master Use Permits for the Addition project.  Construction for the Addition project started in July 2018. 

To receive emails with weekly status for the project, contact the
Washington State Convention Center Addition:  wscca.notifications@clarklewisjv.com

Stay informed about general Addition project information, opportunities
and accomplishments by subscribing to the Addition’s email newsletter.


Neighborhood Update

Project Overview:
To accommodate excavation work for the Washington State Convention Center Addition, Olive Way between Ninth and Boren Avenues shifted to the north starting Wednesday, November 21 2018. Three lanes of access to Interstate 5 and Capitol Hill are retained in the rerouted area, including one lane for buses and two lanes for other vehicles. There is also a pedestrian walkway along the new Olive Way route from Terry to Boren that will remain throughout excavation activities.

Time frame:
Rerouted Olive Way will be in place for approximately 18 months, at which point Olive Way will return to its original location with a new street, sidewalks, lighting, and landscaping.


Weekly Updates

December 4th, 2019

Washington State Convention Center Addition

Additional Notice

Work to be accomplished between 12/4/19 and 12/21/19 will be:

  • Continued excavation and shoring operations on site
  • Foundations, waterproofing & vertical concrete is in progress 
  • Erection of structural steel in progress 
  • Load and export soil from the work site
  • Sidewalk closure on the East side of 9th Ave between Howell and Olive Way
  • Sidewalk closure on the West side of Boren between Howell and Pine 
  • 3 year closure of Terry Ave between Howell and Olive Way 
  • Pine ST Sidewalk Closure between 9th & Boren

Regular Work Hours are from 7 AM - 3:30 PM, Monday - Friday  
Impact Noise Hours are from 8 AM - 5 PM, Monday - Friday and 9 AM - 5 PM, Saturday - Sunday 

Work outside regular hours to be accomplished between 12/4/19 and 12/21/19 will be:

  • Wednesday 12/4 - Saturday 12/21 3:30 PM - 12 AM Rebar Swing Shift 
  • Wednesday 12/4  - Saturday 12/21 starting at 6 AM Tower crane operations 
  • Wednesday 12/4 - Sunday 12/8 7 PM - 6 AM Steel deliveries, unload, organization, erection, and welding 
  • Wednesday 12/4 - Friday 12/13 9 PM - 5 AM Multiple lane closures on Howell ST between 9th & Boren AVE
  • Wednesday 12/4 - Friday 12/13 9 PM - 5 AM Alleyway entering onto Howell between Terry & Boren closed
  • Saturday 12/7 & Sunday 12/8 Starting @ 7 AM Concrete Operations 

Thank you for your understanding.

Project Contact

Night time/weekend supervisor: 
 (206) 552-5791

Information will be updated as it changes or more details are available. Please check back often.

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