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KBCraig wrote:Here's what I want to know about the berm, flood plain or not: you have to have a Professional Engineer and a permit for a pile of dirt?

it's an improvement to property that lies in a flood plain and thus has an effect on the flow of water. It may redirect the flow of heavy rains, in which case it must withstand 100-year rains because if it fails it might be catastrophic, or it may act as a dam, in which case, being a simple earthen dam, it will LIKELY fail and release a backwash (and if it's in the Colorado River floodplain the LCRA will want to know about it). The third possibility is that it is neither, but a PE must come out and officially say "this is safe" no matter how it's oriented and built.