851 Napa Valley Corporate Way
Suit G . Napa, CA 94558-7551
tel 707.255.2729
fax 707.255.5021
arvin@chaudhary.com

SAN FRANCISCO-OAKLAND BAY BRIDGE New East Span

 

The new San Francisco-Oakland Bay Bridge is an exciting and ambitious project for all involved. The original 4.5 mile long bridge opened to traffic in 1936, however, the eastern span’s rigid structure failed to be seismically sound during the Loma Prieta quake of 1989. The new eastern span will be a 2-mile elevated roadway which will be seismically safe enough to resist a major earthquake, and will offer stunning views of San Francisco and Yerba Buena Island.

New materials and modern building methods will make this structure the largest self-anchored, single-tower suspension bridge in the world, with a 525 foot tower. The original 70 foot pilings will be replaced by 300-foot steel pilings. A total of 452 concrete segments will complete the skyway. The east span construction is the first time these precast concrete techniques will be employed in a seismic zone.

Chaudhary & Associates, Inc. provided right-of-way engineering, surveying, and mapping for this critical fast track project involving the State, the cities of Oakland and San Francisco and multiple federal agency properties. Detailed surveys of the structure and pavement East of the East Portal of the tunnel on Yerba Buena Island were performed. Surveyors worked closely with Caltrans crews and the California Highway Patrol to coordinate the work and share lane closures with other activities. Chaudhary & Associates’ Construction Managers worked with Caltrans on the New Eastern Span (Skyway Section) of the SFO Bay Bridge. Work included claims mitigation, contract change order development, and welding inspection services.