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In 1946, the Alameda County Committee for a Second Bay Crossing and noted civil engineer Glenn B. Woodruff estimated the plan would cost $2.5 billion, more than 10 times Reber's estimate. Woodruff, who had helped design the San Francisco-Oakland Bay Bridge, blamed a misunderstanding of the geology of the bay for the massive discrepancy. [4]
The U.S. Army Corps of Engineers Bay Model is a working hydraulic scale model of the San Francisco Bay and Sacramento-San Joaquin River Delta System. While the Bay Model is still operational, it is no longer used for scientific research but is instead open to the public alongside educational exhibits about Bay hydrology.
The eastern span replacement of the San Francisco–Oakland Bay Bridge was a construction project to replace a seismically unsound portion of the Bay Bridge with a new self-anchored suspension bridge (SAS) and a pair of viaducts.
The idea for the Southern Crossing dates back to the 1940s when several additional bridges across San Francisco Bay were studied. [7] After the Bay Bridge crossing opened in 1936, connecting Rincon Hill 2 in San Francisco with the Key Mole 5 in Oakland via two high-level bridges and a tunnel through Yerba Buena Island, vehicle traffic exceeded estimates almost immediately; by 1945, even with ...
A test conducted on January 24, 2013 Opening on March 6, 2013 A time lapse image of Market Street, with The Bay Lights in the background. The Bay Lights was a site-specific monumental light sculpture and generative art installation on the western span of the San Francisco–Oakland Bay Bridge, designed to commemorate the 75th anniversary of its opening.
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A view over the estuary from above Coast Guard Island.Alameda is on the left, with Oakland on the right and San Francisco Bay in the distance. The Oakland Estuary is the strait in the San Francisco Bay Area, California, separating the cities of Oakland and Alameda and the Alameda Island from the East Bay mainland.
Left Coast Lifter is a floating derrick barge or sheerleg which was built to assist in the eastern span replacement of the San Francisco–Oakland Bay Bridge.The barge carries a shear legs crane which is the largest barge crane ever used on the U.S. West Coast.