Pond Boss Forums GENERAL QUESTIONS Property Projects & Construction Straight to Plan C - Fully line my new pond

The only one I can offer some advice on is #1 and #2.

1) All it takes is one puncture to have the liner fail. They are talking about that mil underlayment (which has been run through a screen to ensure the size of the material) to ensure that there are no pokey things in it that could put a hole in the liner. Have you ever filled a swimming pool and had to adjust the liner so it would be smooth? There is a LOT of PSI pushing down on the liner, and all it takes is one forgotten rock or stick to create a hole in the liner over time.

2) Talk to your counties NRCS office and ask them about the culvert pipe size. You want enough to be able to discharge as much rain as will fall in a 100 or 500 year flood. Are you positive that you only have one acre of land that drains to this one spot? Some areas of OK either today or yesterday had 5" of rain. That's only just shy of 136,000 gallons of water. BUT if you actually have 10 acres that drain through that one spot, that is 1,360,000 gallons. You want to dump the water out just about as fast as it runs in. If the dam gets topped by the rain event, then the dam could potentially wash out.