The bridge between San Francisco and Auckland (also the Bay Bridge ; Eng. San Francisco – Oakland Bay Bridge ) is a suspension bridge over the San Francisco Bay in California between the cities of San Francisco and Auckland . It consists of two parts: the western suspended (2822 m) and the eastern cantilever (3101 m), which are interconnected by a tunnel under the island of Yerba Buena . The bridge is one of the longest bridges of this type in the world [1] [2] [3] [4] .
| San francisco auckland bay bridge | |
|---|---|
 | |
| Official name | San francisco – oakland bay bridge |
| Crosses | |
| Location | San Francisco |
| Design | |
| Type of construction | Suspension bridge |
| Material | |
| total length | 7200 m |
| Bridge width | 17.5 m |
| Construction height | |
| Exploitation | |
| Constructor, architect | , and |
| Opening | November 12, 1936 |
After the commissioning of the first transcontinental railway in 1869, San Francisco was separated from this important infrastructure by the bay. Since 1870, due to fears of a decrease in the role of the city due to difficult access to the railway infrastructure, they began to discuss the design of a bridge that would cross the bay. After the calculations, it became clear that the best option would be to build a bridge that will pass through the island of Yerba Buena . The problem was that at that time the US Navy base was located on the island. Thus, to start work, it was necessary the permission of the US Congress , which was obtained in 1931.
Construction began on July 9, 1933 [5] . To connect the two sections of the bridge under the island of Yerba Buena, a tunnel 23 meters wide had to be dug.
The opening took place on November 12, 1936 after three years of work and investment of $ 70 million [6] [7] . The ceremony was attended by former President Herbert Hoover and the Governor of California [8] .
Construction on the island of Yerba Buena in 1935.
In the tunnel under the island of Yerba Buena.
The tunnel connecting the two parts of the San Francisco-Auckland Bay Bridge.
View of the bridge from the island of Treasure Island .
View of the bridge from the island of Yerba Buena.
View of the bridge from the side of the Bank of America building.
Notes
- ↑ San Francisco Oakland Bay Bridge (West) . Structurae . Nicolas Janberg (May 12, 2006). Date of treatment August 8, 2008.
- ↑ San Francisco Oakland Bay Bridge (East) . Structurae . Nicolas Janberg (February 28, 2007). Date of treatment August 8, 2008.
- ↑ San Francisco Oakland Bay Bridge . Bay Bridge Public Information Office (September 8, 2009). Date of treatment November 16, 2010.
- ↑ Wollan, Malia . Long-Overshadowed Bay Bridge Will Go From Drab Gray to Glowing , The New York Times (March 4, 2013).
- ↑ When Trains Ruled the East Bay .
- ↑ East Span News . California Department of Transportation. Date of treatment December 10, 2012. Archived January 24, 2013.
- ↑ Complimentary to Selby, Ralston and Otis. , San Francisco Real Estate Circular (April 1872). Archived November 1, 2010. Date of treatment July 13, 2008.
- ↑ Crane, Lorin P. Proposed Suspension Bridge Over San Francisco Bay (unknown) // Overland Monthly. - 1913. - April ( t. 61 , No. 4 ). - S. 375-377 .
Further reading
- The Titan of Bridges : [ eng. ] // Popular Mechanics. - 1933. - T. 59, No. 1 (January). - P. 10-14. - ISSN 0032-4558 .
Links
- baybridgeinfo.org - The Official Bridge Site between San Francisco and Auckland
- Bridge Documentary (1937) on YouTube