So we have run into a problem, north Texas has gotten lots of heavy rains lately and the spillway on the pond is getting clogged up with debris and isn't draining properly which is causing the pond water level to rise and is flooding part of my property.

The problem is the spillway and dam are not on my property. Over the past weekend I went over there and started trying to clear it but only made minimal progress. After talking with a family member they recommended not trying to clear it in case I cause any damage on his property.

What recourse do I have other than trying to contact him to better maintain his spillway?