Thanks ACtrafficengr - I agree. After studying floodplain issues more, I'm reshaping the analysis to accurately reflect basically what you are saying, which shows it is not "development" of anything in the floodway or even on the floodplain. It is actually something people do to mitigate...
A private property owner has a small (60' by 120') shallow pond sitting on a FEMA regulated flood plain that is next to a larger lake (also fairly shallow) that has a floodway running through it. The owner wants to clean-out the small pond, dredging it to make it deep enough to aerate and keep...