Yerba Buena Tunnel
Highway tunnel in San Francisco, California / From Wikipedia, the free encyclopedia
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The Yerba Buena Tunnel, also known as the Yerba Buena Island Tunnel, is a highway tunnel in San Francisco, California. It is the part of San Francisco–Oakland Bay Bridge complex that crosses Yerba Buena Island. The Yerba Buena Tunnel carries ten lanes of Interstate 80 (I-80) on two decks, connecting the two component spans of the Bay Bridge, the western suspension span and the eastern self-anchored suspension span. At the opening of the Bay Bridge in 1936, it was the world's largest-bore tunnel.
Quick Facts Overview, Official name ...
Overview | |
---|---|
Official name | [none] |
Other name(s) | Yerba Buena Island Tunnel |
Location | San Francisco, California |
Coordinates | 37°48′34″N 122°21′56″W |
Route | I-80 |
Crosses | Yerba Buena Island |
Operation | |
Work begun | July 9, 1933 |
Constructed | 1933–36 |
Opened | November 12, 1936 (1936-11-12) |
Rebuilt | 1961–62 |
Owner | Caltrans (District 4) |
Traffic | automotive |
Vehicles per day | 250,000 (2014)[1] |
Technical | |
Design engineer | Charles H. Purcell |
Length | 540 ft (160 m) |
No. of lanes | 10 |
Tunnel clearance | 58 ft (18 m) |
Width | 76 ft (23 m) |
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