On the edge of my property there is a steep bank that eventually leads to a stream. My neighbors rainwater runoff from his land runs down a hill and then to a "drainage ditch" seperating our lands and over the bank. The area where the water runs off the bank is eroding and with recent heavy rains has deterioated the area around the edge of the bank. How can I re-dispurse the the runoff to avoid losing so much soil? Any suggestions or experience would be appreciated.