Welcome to Caltrans District 4
 
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Studies for the New East Span Project began with underwater archaeological surveys in the spring and summer of 1999. Two other archaeological investigations were conducted on the island in the fall of 2002 and the summer of 2004. This website highlights the results of these studies and associated archival research, and also presents a general history of Yerba Buena Island.

  • Select your areas of interest on the left hand side of the screen.
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