I've had the chance to visit New Orleans about three weeks ago and it is difficult to describe the size and scale of the destruction that occurred due to the flooding. There was an area we drove through of St. Bernard parish that WAS an area of strip malls and burger joints that you see in any major American city. Now, it's a ghost town...the buildings and large parking lots are empty and only a minimal amount of traffic and the stop lights have no power.
As far as the golf courses go, New Orleans Country Club reopened during my visit and was in surprisingly good condition. Most of the little hollows in the fairway where water stayed the longest are black and grassless, but most of the course had bermuda and the all but four of the greens were good, but understandably slow. There wasn't that much tree damage either, although the signature tree by the clubhouse lost a large limb. I did not get to stop by Metairie but was staying with a member who had played there and he said the course suffered more damage, but was open due to a major overseeding of the course.
According to a local golf publication, it may have been Tee to Green but I don't remember, many courses in the area have reopened. We visited English Turn and it was in great condition. Eastover, a Joe Lee 36 hole facility, is still closed and looked like it was hurt really bad.