I have yet to see a chopper that can lift a Caterpillar D7, which is the least they'd need for this.
The Corps' heavy gear is stuck on the other side of the I-10 breaks.
are these concrete levee's like flood walls along the lake near the NO area?
I don't know exactly what the levee looks like. They must have barges, or boats on the lake. CH-47s can haul 10ton. They need to look around at what the have and improvise fast.