HALF OF WTC 'BATHTUB' BASEMENT DAMAGED BY TWIN TOWERS' FALL

摘要

Visual surveys indicate roughly 50% of the seven-level basement structure of the World Trade Center is now rubble as a result of the impact of the collapse of the twin 110-story towers. Outside the tower footprints, the section of greatest concern within the so-called 1,000 × 500-ft bathtub is along its south side. There, a 200 × 30-ft hole from 40 to 70 ft deep sits between the tub's perimeter slurry wall and the remains of Two WTC.