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Inside the New Tunnel 100 Feet Below San Francisco Bay

KQED Science | October 17, 2013 | 0 Comments

Inside the New Tunnel 100 Feet Below San Francisco Bay

The $286 million tunnel is the first ever to cross under the Bay, and -- once it comes online in 2015 -- will carry 300 million gallons of water a day from the Hetch Hetchy Reservoir to San Francisco and Peninsula residents.

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