Check out Transbay Transit here Bridges The First Street Bridge installation, the first of three temporary bridges being installed at the Transbay Transit Project, was successfully installed over the Memorial Day Weekend, 2012. The three bridges, at First Street, Fremont Street and Beale Street are necessary to keep the construction of the Transbay Transit Center

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The infamous Doyle Drive built in 1936, and known as the most dangerous highway in the State of California, was redesigned in 2009 and re-named the Presidio Parkway. The shoring for the excavation of the new Southbound Battery Tunnel, a cut-and-cover tunnel that is 30 ft. to 40 ft below the original grade, was originally

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