I. THE PROBLEMS
EROSION
A complicating problem of storm or flood waters passing over land is often erosion. The result of erosion is often steep banks of scoured soil or other ground material. Remember that erosion:
CANNOT be controlled while it is happening and is often not seen until the flood waters have subsided.
CAN seriously undermine structures, leading to major failures.
OCCURS most often when waters flow rapidly over loosely compacted soil or denuded slopes.