According to EOC the storm surge associated with Hurricane Ike reached 4.2 feet. Gustav's surge only reached a height of 3.15 feet. A little more than a foot made a big difference in this case, as Bayou Gauche suffered its highest flood levels in decades.
If you or someone you know needs assistance in the aftermath of Ike, please contact EOC at 985-783-5050. An emergency coordinator will direct you to available resources.