Looks like topsoil on the dam around the spillway, I like to pack clay around and on top to make sure it doesn’t wash next to pipe and bypass it....on the downside of the dam you might have to extend the rock and concrete so it don’t wash so bad
Yes, about the last 2" I had them put topsoil to help expedite the growth of grass/foliage on the top and sides of the dam, the rest is good clay.
Correct... that's what I said above, I am planning on adding both to the sides and bottom with more rock and concrete, although the bottom is only about 2' from the creek bed now. It is just difficult to see from that pic.
