Pond Boss Forums POND CONSTRUCTION Building a dam Maximum Slope For Dam Safety

it basically depends on how stable the ground is after it's compacted. Since you are using a liner , you don't have to worry about erosion on the pond side, but on the back side of the dam, you have to worry about it eroding there before you get the ground cover established.

How wide or how narrow the dam can be? It has to be wide enough so you can get equipment on it to compact the core trench and the dam. Heck, if you can properly brace it so it didn't push out, you could make the dam out of 1/2" thick sheet steel and have a dam that is 1/2" wide. ..........