Flooding of the Project Farmland

Dad's project farm was high enough to avoid most of the high water the last time the Morganza was opened in 1973. The map itself was made in 1970, before the Broadway extension was added. It was edited several times to show flooding, changes of roads and road names.
1973 Flood Map.

The Dawes Land is 12 feet above sea level.

2005 9/25 Rita Floodmap

More interesting is the map of the flooding that came with Hurricane Rita, the one that followed Katrina. This one is apparently made from an aerial photograph. Click for a larger view.

Conclusion
Apparently VERY LITTLE DAMAGE. I haven't heard from local residents, but Morgan City did not get serious flooding. The Bonnet Carre was opened early. The Morganza Spillway was opened about 1/3. The Atchafalaya flooding was minimal... apparently the land was very dry and absorbed the worst.