Not the same overpass.
Anyone who made it over the bridge was put on a bus and taken back across the bridge into jefferson parish near the causeway.
We know that, according to Major Garret, the Red Cross had supplies ready to deliver to the superdome and it was a relatively short distance away.
We know that the Red Cross believed it was important to get the supplies to the people at the Superdome, even before the hurricane hit.
We know that the State Homeland Security ordered the Red Cross to keep out of NOL, citing safety concerns.
We know that the bridge to Gretna was blocked by police officers keeping the people contained to NOL.
What we don't know yet is, was it the same bridge.