Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

America Rebuilds: A Year at Ground Zero
Ground Zero Profiles
Engineering the Clean-Up
Artifacts
Video Stories
Imagining the Future
Dialogue
About the Program

Assisting the Rescue
Surveying the Damage
Assessing Buildings
Navigating the PATH
Understanding the Site
Stabilizing the Wall
Removing Debris
Supporting Structures
Extracting Hazards
Uncovering Property



Quick Facts

Sources

Supporting Structures

Critical column braced

Bracing for Cranes

RICH GARLOCK: This is a huge area between the North Tower and WTC 6. On top of the debris is a wood ramp built for the contractors who wanted to get a crane out over the pile. We went underground to map the areas of intact structure beneath to see if the columns could support the weight of the crane. In areas where columns were intact, but the surrounding floors were not, we added bracing. Then the columns could take the load.

1 of 6 >>



Home | Ground Zero Profiles | Engineering the Clean-Up | Artifacts | Imagining the Future | Dialogue | About the Program
Buy the America Rebuilds video | Program and Site Credits


© 2002 Great Projects Film Company, Inc. All Rights Reserved


Image credits: Leslie E. Robertson and Associates