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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

Navigating the PATH

Putting a bulkhead in the PATH to prevent flooding

Plugging the PATH

GEORGE TAMARO: Emergency sandbagging on September 12th prevented water from progressing beyond the Exchange Place station. Water was pumped from behind the sandbag dike up to the street level and then discharged into the river. The long-term solution was to build a concrete bulkhead within both tunnels to prevent water from filling the system in the event of a catastrophic flood. The bulkhead plug had a large pipe down near the base that would permit workers to slip through and inspect the tunnel on the other side.

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Image credits: Mueser Rutledge Consulting Engineers