DBM Completes Drilled Shafts for Hood Canal Bridge Replacement

Job Location: Hood Canal Bridge Retrofit and East Half Replacement, Poulsbo, WA

Project Owner: Washington State Department of Transportation (WSDOT)

Project Description: DBM Contactors Inc. and venture partner Case Foundation of Chicago, Ill., recently completed the nearly $2.5 million drilled shaft foundations required for replacing the Hood Canal Bridge.

The drilled shafts included 6.5 feet, 8 feet, and 10 feet diameters, and reached depths to 100 feet. Fourteen of the shafts, 10 feet in diameter and ranging in depth from 50 feet to 100 feet, were constructed from a temporary work trestle over the waters of Hood Canal.

Installing the other drilled shafts had to be completed at night so that lane closures could provide access to the new foundation locations. The drilled shaft foundations which extend through the soil overburden and penetrate into the underlying hard glacial till and basalt rock strata provide support for the new bridge.

General contractor for the Hood Canal Bridge is a Kiewit/General Construction Joint Venture.

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