According to a news report in the Contra Costa Times, Walnut Creek, California, four potential bidders on the $270 million project each asked for more time to study the structure and its surroundings. In response, Caltrans pushed back the bid deadline from November 2014 to February 2015.
Work on an initial phase of the bridge’s dismantling has already begun. The phase currently up for bid involves dismantling the deck, support beams, steel trusses and upper piers on most of the length of the bridge.
Among the considerations for contractors are state and federal wildlife rules calling for the winning bidder to prevent birds from nesting in the portion to be demolished. The preventive steps to be taken during the two-and-a-half year project are likely to add to the costs of the project, according to officials quoted in the Contra Costa Times article.
The Bay Bridge has two sections, one that connects downtown San Francisco to Yerba Buena Island and another that connects the island to Oakland. The original structure was badly damaged in the 1989 San Francisco Bay Area earthquake, with a new span completed in September 2013.