Welcome to the forum future! You are asking the right questions and in the right forum. I can't answer your question, but an expert should be along who can.
You mentioned the soil type needs to be determined. I think I'd make this a priority to see how deep you need to go. That might help you make your To Dam Or Not To Dam question.
I guess I need to ask the most basic question there is.... How do I determine how deep to go? I was thinking 6-8ft, but dont know for sure.
