SR 104 - Hood Canal Bridge - Special Repair

Project news

For specific information about construction-related night drawspan closures to traffic, please check

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Why is WSDOT replacing the bridges' internal mechanics that are responsible for opening and closing drawspan?
The existing lower and upper gear boxes are worn and near the end of their lifespan. Contractor crews will replace the Hood Canal Bridge's gear boxes, hydraulic hoses and adjust and align the guide rollers that are responsible for operating the drawspan for marine traffic.

This work requires crews to take precise measurements of the internal mechanical systems that operate the drawspan. In order to take these measurements, crews need to have little to no tidal influence on the bridge. Much of the work is coordinated to occur during night slack tides when there is little water movement and light winds. In order to have the least amount of impact to traffic, we generally limit closures during overnight hours.

The End Result
New gear boxes and other internal mechanical parts will allow WSDOT to maintain the functionality of the bridge drawspan and minimize unscheduled impacts to motorists and marine traffic.

Needs & benefits

Access - With no convenient alternate routes between Kitsap and Jefferson counties, repairing the bridge preserves an important lifeline for residents and businesses.


  • Oct. 2016 - Project awarded to Northbank Civil and Marine, Inc.
  • Spring 2017 - construction resumes 
  • Fall 2018 - construction complete


Financial Data for PIN 310439C
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $5,189
CWA $0
Total $5,189


Michele Britton
Project Engineer

Doug Adamson
WSDOT Communications 

    Project map of bicycle improvements on Hood Canal Bridge