While I did stay at a Holiday Inn Select last night, I still don't claim to be an expert on issues like this, but I do have one thought.
The corps owns the ground surrounding the lake, so I assume it would be up to them to make something like this happen....
How would it work if there could be holding ponds/small lakes built above the main feeder creeks leading into the lake where the silt is coming from? They could catch the mud run off from the fields and then allow clean water to enter the lake system. (Would rip rap work as a mud filter?)
I know there are a bunch load of creeks and a fairly sizeable river we are talking about, but it seems that would be a more proactive approach at stemming the problem instead of repeatedly ramming ideas such as fencing off areas to grow weeds that don't grow like weeds.
I believe in catch and release.....right into the grease!!!!!