Ferries - Seattle Multimodal Terminal at Colman Dock Project

Project news

  • Bremerton drive-on passengers will continue to use Slip 3. Bainbridge drive-on passengers will continue to use Slip 1 (routes will temporarily swap slips Friday, May 14, through Sunday, June 27, with Bremerton using Slip 1 and Bainbridge using Slip 3 to accommodate a smaller vessel on Bremerton run).
  • The Marion Street vehicle ­­exit is closed through late summer 2021. All vehicles and bikes exiting Colman Dock will exit through Yesler Way, which may cause delays off-loading ferries during peak times. There will be no changes or impacts to people walking on the ferry.
  • Stay informed about the latest changes for customers and sign up for rider alerts.
  • The City of Seattle is rebuilding Seattle’s central waterfront. Find out the latest information about construction progress on the waterfront.

Washington State Ferries is replacing the aging and seismically vulnerable parts of Colman Dock in Seattle in order to maintain its critical role as a regional multimodal transportation hub.

The End Result

Graphic of the conceptual layout of the Seattle Multimodal Terminal at Colman Dock

Key project elements include:

*While avoidance and minimization of new overwater coverage was a key goal of the project, the new facility will increase the overwater footprint by approximately 5,400 square feet. Mitigation for this increase in overwater coverage was achieved by removing overwater coverage from a neighboring pier owned by WSDOT.

Project Benefits
The project will:

  • Ensure that the Colman Dock facility can continue to provide safe and reliable ferry service between Seattle and communities in Kitsap County and the Olympic Peninsula
  • Improve safety by meeting current seismic standards
  • Reduce conflicts between vehicles, bicycles and pedestrians and improve operational efficiencies
  • Improve circulation and accessibility for people walking, biking and driving. 
  • Remove 7,400 tons of creosote-treated timber piles from Elliott Bay
  • Open up an area of shoreline and near-shore habitat
  • Provide stormwater treatment for all new and replaced areas of the trestle
  • Provide opportunities for remediation of contaminated sediments


  • 2012-2015 – Environmental process/preliminary design
  • 2015-2017 – Final design and permitting
  • Summer 2017-2023 – Construction
    • Summer 2019 – New passenger-only ferry terminal opens on south side of dock

Construction will continue until 2023 and the terminal will remain open throughout construction.

While the terminal and all ferry operations will be available and maintained throughout construction, customers can expect changes to how vehicles, passengers and bicycles load and unload.

WSF will continue to coordinate closely with other Seattle waterfront projects, including  Waterfront Seattle, and Alaskan Way Viaduct Replacement Program throughout construction.

Disadvantaged business enterprise (DBE) program
WSF has chosen the General Contractor/Construction Manager delivery method for the project. Hoffman-Pacific, a Joint Venture, was selected as the GC/CM in fall 2015 and has committed to maximizing opportunities for DBE firms. WSDOT has established a DBE goal of 12% of the project’s Maximum Allowable Construction Cost (MACC).

For questions about DBE opportunities on this project:
Andrew Powell, Hoffman-Pacific Project Manager

For information about certification and WSDOT’s DBE supportive services:
WSDOT Office of Equal Opportunity


  • $455 million in federal, state and local funding has been appropriated for this project.
  • King County provided funding for replacement of the passenger-only ferry facility.

With $455 million in secured funding, WSF will replace the seismically-vulnerable elements of the facility to preserve Colman Dock’s core functions. This budget also funds the entry building and pedestrian plaza, bicycle facility and a new vehicle transfer span. 



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Marine insects called gribbles have bored holes into this cross section of timber pile that was removed from Colman Dock.
Much of Colman Dock is supported by aging timber piles.

An example of a deteriorating timber pile that has been removed and replaced at Colman Dock.
An example of a deteriorating timber pile that has been removed and replaced at Colman Dock

Interior view of the terminal
Conceptual interior view of the new terminal building