$12.7 million extra to put Bay Bridge demolition back on schedule

Media observe the dismantling project on the cantilever section of the old Bay Bridge in Oakland, Calif., on Monday, March 24, 2014. The Toll Bridge Program Oversight Committee announced a plan to remove the east and west cantilever sections simultaneously bringing the removal process back on schedule to be completed by the spring of 2016 and increasing the cost by $12.6 million. (Laura A. Oda/Bay Area News Group)

OAKLAND -- Caltrans says it will put the $300 million demolition of the old Bay Bridge east span back on schedule by paying $12.7 million for extra labor and equipment.

The three- to five-year-long demolition project fell several months behind schedule out the starting gate when Caltrans reallocated labor and resources to open the $6.4 billion new east span as soon as possible. It opened Sept. 2 after years of delays and cost overruns.

Caltrans said Monday it will regain the lost time by paying the contractor extra to simultaneously tear down both halves of the cantilever section of the bridge after crews cut it in half in the next three or four weeks. The 1,400-foot-long cantilever section is about a quarter-mile east of Yerba Buena Island and has the tallest steel frames on the east side of the island.

Brian Maroney, chief bridge engineer, tapes a diagram of the cantilever section of the old Bay Bridge to help describe the new dismantling plan at the Caltrans offices in Oakland, Calif., on Monday, March 24, 2014. The Toll Bridge Program Oversight Committee announced a plan to remove the east and west cantilever sections simultaneously bringing the removal process back on schedule to be completed by the spring 2016 and increasing the cost by $12.6 million. (Laura A. Oda/Bay Area News Group)

"This will put the demolition project back on schedule," Caltrans spokesman Andrew Gordon said Monday in a media briefing and tour of the demolition site.

The gap between the two bridge sections eventually will become a dramatic piece of history and photo opportunity, said Brian Maroney, a Caltrans engineer.

However, the gap will start out too small to even be noticed by the tens of thousands of motorists whizzing by on the new Bay Bridge.

"On the new bridge, you will miss it," Maroney said. "By summer, when you have 500 feet (in the gap,) you will won't be able to miss it. People will tell their grandchildren that this is what they saw."

The demolition by a joint venture of California Engineering Contractors/Silverado Contractors is preparing for the big milestone starting late this month. Crews with torches will cut the cantilever section in half after using hydraulic jacks to brace the two sections so they don't fall into the bay.

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$12.7 million extra to put Bay Bridge demolition back on schedule