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SR 20 - Port Townsend Slip 1 - Bridge and Transfer Span Replacement

This project is in the construction stage.


typical ferry terminal structure schematic
Typical ferry terminal structures (enlarge)
A transfer span is a moveable bridge. Previously operated by cables, the span will now be operated by hydraulics.

 

The Port Townsend terminal

Status

June 2013

  • Slip 1 is back in service as of May 16.
  • Contractor crews are completing punch list items.

Overview
This project will preserve the transfer span system by replacing it with a hydraulic transfer span (H-span) design. The H-span is a moveable bridge that connects the trestle to the vessel.

Why is WSDOT preserving the Port Townsend transfer span system?

  • The structures were constructed in 1982 and are at the end of their lifespans.
  • This work will increase reliability.
  • Changing the transfer span will decrease operational costs. The H-span is much simpler and requires fewer staff to operate.
  • This project brings the transfer span up to current seismic mechanical and electrical standards.

The End Result
The new H-span system will improve reliability and safety and reduce environmental impacts and operational costs.

Project Benefits
Because the H-Span system is simpler and requires less staff to operate, costs to maintain the system are expected to decrease. 

The project will bring the span up to current seismic, mechanical, and electical standards.

What is the project timeline?

  • June 2011: Began design
  • February 2012: Advertised for bids for Phase 1 contract (off-site fabrication)
  • July 2012: Advertised for bids for Phase 2 (on-site installation)
  • Summer/fall 2012: Built new transfer span off site
  • November 2012: Began on-site installation
  • Spring 2013: Complete on-site installation

Financial Information

Project signage will reflect the cost of construction engineering, project bid award and sales tax.

Fabrication contract: $2.3 million
Installation contract: $3.3 million
Contracts total: $5.6 million

How can I get more information?
Contact:
WSF Construction Project Engineer John Callahan
206-515-3755
john.callahan@wsdot.wa.gov
 
WSF Communications Manager Joy Goldenberg
206-515-3411
joy.goldenberg@wsdot.wa.gov

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