The muskrats have been gone for a year, and I don't think that they will be back. I removed all of the cattails, and acording to Tim Mattson, that's a good way to get rid of them, as it's their favorite food source. The second I see another rat I'm going to sit out with a shotgun and a six-pack. When it comes to oversized rodents destroying my property, I don't "have-a-heart."

I was actually wondering about the rubber roof liner as more of a seepage preventor. But I don't know if it would do any good or not. Anybody have any thoughts?

Maybe I'll start by digging a few feet into the embankment, before I even try to remove the culvert, and get a looksee at the washout/muskrat damage. Good plan?

As long as I get plenty of clay packed in along the dam face and in the holes that are from muskrats and the old culvert I should be fine... right?

Is there a technique for mixing the clay with existing material to make a more uniform weld, or should I just have at, fill it in, and compact it like a madmad?