Marine

Location

Tacoma and Port Gamble, WA

Owner

Washington DoT

Contractor

Kiewit-General, A Joint Venture

Value

$347 million

Originally opened in 1961, the Hood Canal Bridge is the world's longest saltwater floating bridge. It represents the main economic transportation link between the Kitsap and Olympic peninsulas. The scope of work includes replacing the east half of the floating structure, widening the existing west half roadway deck, replacing both existing bridge approaches, replacing both transition truss spans, renovating three existing pontoons, casting and setting concrete gravity anchors, and providing a new control system for the entire bridge.

The project began in 2003. The approach replacement and west side widening was completed in 2005. Concrete anchors weighing more than 1,000 tons each were completed and set on the floor of Hood Canal during summer 2007. Pontoons are being cast at Concrete Technology's Tacoma, Wash. graving dock and the rehab of three existing pontoons is ongoing at the Port of Seattle's Terminal 91. Assembly and outfitting of the new drawspan began at Todd Shipyard in July 2007.

The pontoons will be transported by tugboat through Puget Sound to Hood Canal for assembly alongside the existing bridge. A 6-8 week closure in May-June 2009 will allow for installation of the new span.

Additional Markets