Suspension Solution

by Michael Marquez, P.E., Proj. Engr.; Caltrans, CA,
Greg Orsolini, P.E., Proj. Mgr.; Parsons Transp. Group-DeLeuw Cather, Pasadena, CA,
Mark Ketchum, P.E., Vice Pres.; OPAC Consulting Engrs., San Francisco, CA,
Thomas Spoth, P.E., (M.ASCE), Proj. Mgr.; Parsons Transp. Group�Steinman, Pasadena, CA,


Serial Information: Civil Engineering—ASCE, 2000, Vol. 70, Issue 6, Pg. 60-65


Document Type: Feature article

Abstract:

The new bridge across the Carquinez Strait near San Francisco, California, will upgrade an important transportation link across the Sacramento River. This new bridge, which renders the classical suspension bridge form with innovative design and construction technology, implements a number of firsts in North American bridge engineering. It is the first major new suspension bridge to be built in the United States since the Chesapeake Bay Bridge in 1973; the first major suspension bridge to be built in the United States with concrete towers, large diameter concrete shaft foundations, and an aerodynamically shaped steel box girder and orthotropic deck; the first California toll bridge to be replaced as part of the state-wide bridge seismic retrofit program; and the first new suspension bridge in the United States to be designed in a highly seismic zone to meet stringent repairable damage seismic performance criteria.

Subject Headings: Suspension bridges | Bridge design | Steel bridges | Girder bridges | Bridge towers | Bridge foundations | Bridge decks

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