Also, generally speaking, a pond should be out of the river's flood plain. As Dave pointed out there can be lots of regional regulations, the river may have as governing river authority etc etc.


4 acre pond 32 ft deep within East Texas (Livingston) timber ranch. Filled (to the top of an almost finished dam) by Hurricane Harvey 9/17. Stocked with FHM, CNBG, RES 10/17. Added 35lbs RSC 3/18. 400 N LMB fingerlings 6/18