The work of excavation for the Caissons begins,
BBIMBY Groundbreaking Date, Monday May 24th, 2010
Backhoe Operation by Team Member Doug Knoblock
Organization chartered to build the Brooklyn Bridge - The New York Bridge Company
President signing bill approving the Broolkyn Bridge plan, 1869 - Ulysses S. Grant
Date work began on Bridge - 2 January 1870, clearing the site for the Brooklyn Tower
Depth of Brooklyn caisson - 44'-6" feet below mean high tide,
bearing on consolidated materials (bedrock at 90 feet) (DBS)
Design weight supported by Brooklyn Caisson - 80,000 tons (DBS)
Thickness of top of Brooklyn wooden caisson - 15 feet of yellow pine. (DBS)
Brooklyn caisson launched from Greenpoint shipyard (5 miles North) - 19 March 1870
Launching Size of Brooklyn Caisson - 168' x 102' x 14½'
Launching Weight of Brooklyn Caisson - 3000 tons
Organization chartered to build the Brooklyn Bridge - The New York Bridge Company
President signing bill approving the Broolkyn Bridge plan, 1869 - Ulysses S. Grant
Date work began on Bridge - 2 January 1870, clearing the site for the Brooklyn Tower
Depth of Brooklyn caisson - 44'-6" feet below mean high tide,
bearing on consolidated materials (bedrock at 90 feet) (DBS)
Design weight supported by Brooklyn Caisson - 80,000 tons (DBS)
Thickness of top of Brooklyn wooden caisson - 15 feet of yellow pine. (DBS)
Brooklyn caisson launched from Greenpoint shipyard (5 miles North) - 19 March 1870
Launching Size of Brooklyn Caisson - 168' x 102' x 14½'
Launching Weight of Brooklyn Caisson - 3000 tons
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