- The Bathtub
The Bathtub refers to the underground foundation area at the site of the
World Trade Center and accompanying buildings in New York City."The Bathtub" encompasses a large, roughly rectangular
excavation down tobedrock surrounded by reinforced concrete walls, intended to serve asdam s to preventwater intrusion from the nearbyHudson River (North River). Built to keep water out, it also holds water in, which is why it has earned the nickname. "The Bathtub" contains a 16 acre (65,000 m²) site, including seven basement levels, the downtown terminal of thePort Authority Trans-Hudson rapid transit line, and a preexistingNew York City Subway line. The waterproof wall is three feet (~1 meter) thick and 70 feet (~21 meters) high.It was feared that the wall might collapse during the removal of debris from the September 11th attacks, endangering workers and possibly compromising other buildings and flooding a significant portion of the subway system. To prevent this, reinforcements were attached to bedrock to shore up the bathtub walls.
External links
*Cite web
title = World Trade Center "Bathtub": From Genesis to Armageddon
accessdate = 2007-05-16
url = http://www.nae.edu/nae/bridgecom.nsf/weblinks/CGOZ-58NLJ9?OpenDocument
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