Question

The city of new orleans is in the delta of a great river. during hurricane katrina most of the city flooded but the area along the river, like the french quarter, did not. why didn't these areas flood?

Answer 1

The reason why the area of the City of New Orleans which is in the Delta of Great River were not flooded is because these areas are geographically covered by natural leeves of the river,  these leeves are higher in elevation compared as compared to the adjacent areas, thus the flood water wouldn't have reached these high points.<span />