Report upon the removal of Blossom Rock in San Francisco Harbor, California, 1870. Blossom Rock was an underwater hazard in San Francisco Bay, named after the first ship that hit it. They dug a series of caves in the interior, filled it with explosives, and blew it up. I picture these guys in the dark in these passages under the bay, chipping away. What did it sound like when they stopped working and just sat there?
Ships kept getting bigger, so they've had to blow it up twice since to increase the depth.
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