BART Pittsburg/Antioch Extension – Phase 1A

Provided design for a 3,000-foot-long two-cell cut-and-cover tunnel subway structure, grade separation, counterfort retaining walls, as well as the independent design review of the 640-foot-long aerial structure at Kinne Boulevard. The structures were designed to the latest BART & Caltrans design standards. Construction staging procedures and traffic detours were developed by coordinating with the US Navy and Caltrans. CA services and RFIs were provided during construction. A carefully planned staging construction method was developed.