Pond Boss Forums POND CONSTRUCTION Building a dam Dam question

Like Bill Cody says, "It all depends"

Do you have this booklet?

http://www.in.nrcs.usda.gov/pdf%20files/PONDS.PDF

If you read pages 22 thru 50, you will see that the answer that you are looking for depends on a lot of things that are very site specific. I'm guessing that someone with a lot of pond building experience (Mike, Tim, etc.) can give you an ballpark answer, but I can't.