Interesting that this is just now happening in Penn. The USDA mostly through one of it's sub agencies I think called the ASCS combined with agencies concerned with fish habitat have been doing this sort of thing for probably 20 years here in N.E. Ore. with programs to fence streams to keep grazing stock out, plant native shrubs and trees along banks and even change steam courses so they meander as they once did. I assumed these programs were nationwide. Some of the ASCS programs have paid for extensive livestock watering systems extending out into hill country in order to promote grazing away from valley streams.