"Floods are one of the most common hazards in the United States. Flood effects can be local, impacting a neighborhood or community, or very large, affecting entire river basins and multiple states."
"Be aware of flood hazards no matter where you live, but especially if you live in a low-lying area, near water or downstream from a dam. Even very small streams, gullies, creeks, culverts, dry riverbeds, or low-lying ground that appear harmless in dry weather can flood. Every state is at risk from this hazard." FEMAClick on the word FEMA to go to their website for more info.
Flood Plain Designation:
Statement as to which zone structure is located.
Flood Plain Delineation:
Field location based on observed elevations.
Setting a benchmark on site for building construction.
Based on Building under construction.
Based on Finished construction or existing building.