Transportation

Location

Oakland, CA

Owner

California DoT

Contractor

Kiewit-led Joint Venture

Value

$1.04 billion

Completion

December 2007

In January 2002, a joint venture led by Kiewit Pacific Co., a subsidiary of Kiewit Corporation, was selected to construct the $1.04 billion “Skyway Segment” of the eastern span crossing the San Francisco Bay from Yuerba Buena Island to the city of Oakland, California. Considered Phase One of a four-phase seismic retrofit to replace the existing double-deck steel bridge, the project is the largest single contract in Caltrans history. The two new twin precast segmental bridges will accommodate five lanes of traffic in each direction and a bike path on one side.

The 1.2-mile-long, 14-span bridge deck consists of 452 precast concrete segments, each weighing as much as 750 tons. Each segment made a 10-hour journey from the fabrication yard in Stockton, down the San Joaquin and Sacramento rivers and to the bridge site. On December 7, 2006, the project reached a major milestone when the final two segments were lifted into place. With the segments positioned, crews connected the larger of the two with newly poured concrete, cables and two 60-feet-long steel hinge pipes that will allow the bridge to move in an earthquake.

The Skyway Segment is on schedule to be completed by December 2007. Over the next year, crews will install cables and epoxy to link the precast segments together, pave the roadway and finish the steel deck to support the bike path.

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