Thruway aerial shots of giant caissons being floated out of natural dry dock at Grassy Point, 1953

Aerial footage of tugboats moving giant caissons – a type of sophisticated bridge support – for the soon-to-be-built Tappan Zee Bridge.
Date Original
October 26 1953
14512-91, Motion pictures of Thruway construction and related matters, ca. 1951-1967, New York State Thruway Authority;16mm film; color; silent
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