Hersh

How tall will the dam be?
Your pond will be here longer that your house build it strong.

The book says 3/1 for ever 1 foot it goes up you go out 3.

2/1 back slopes are not uncommon with the right material.

Looking at a lot of old dams there are a lot of back slopes that are almost vertical, It will depend on the material and how high.

OTTO