[supercat]

If the breach isn't plugged yes the water will and did equalize. This levee was on a canal coming from the lake. I am convinced that a heavy army engineer battalion could have plugged the canal and repaired the levee.

Levees may look impressive, but FWIU they are actually quite fragile. Once a levee starts washing over, it becomes weaker VERY quickly. I don't know exactly at what point people stopped working on the levees, but there comes a point where the amount of effort required to delay flooding by 'n' minutes becomes essentially exponential with 'n'.

[Yasotay]

The breach occurred on a canal coming off of the lake. You don't plug the breach ... you use the bridge and plug the canal .... then repair the levee. Too late now, but at the time, many Freepers sure thought it could have been done.