"To: jeffers
Counts what you mean by downtown. Part of the CBD is in a hole. The Quarter is high. New Orleans East is all a hole. City Park area is high. Part of the the north city is in a hole, and part is fine. At Franklin
and Broad, a lot of the houses are very very built up, and the street would be flooded, but the houses might be mostly dry.
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I have not downloaded any DEM's this has been moving too fast. The map I have shows three areas, listed at "greater than 8' deep" (meaning potential flood depth) all north of I-10, a long skinny one west of Metarie, a rectangle half on, half off the west side of City Park, and one more over by London Park. The rest shows 4' to 8', or 4' or less. That match what you have?
Hmmm....lake's normally at =1, so if my map is indexed to that...then right now I'd need to add 2' to all depths....note to self...there's just no substitute for a hi res DEM.
Don't have a map handy. Some of it I know from living there, and I did look at elevation maps yesterday. I think some of them are out of date and padded, not taking into consideration recent subsidence.