Hey folks,
I just bought an old place in maryland with a 60 yr old 1/3 acre pond that is spring fed and has a 20 foot wide earth dam with a 8" cast iron level control drain pipe that runs down through the dam and discharges to a stream.
I am concerned about the condition of the drain pipe and what I may need to do to repair/replace it. The top of the drain pipe is very rusted and corroded through in places. But most troubling is the backside of the dam above the discharge pipe. This area has been eroding and although I still have a good portion of the dam in place the erosion is in a vertical line directly about the drain pipe possibly indicating it has collapsed.
What I am looking for is some advice on what I need to do to repair/replace the drain pipe. Because the pond is very healthy (large mouth bass, bluegill, crawdads, frogs, etc), whatever I do, I would like it to disturb the pond as little as possible.