I have a 7 acre lake (pond) that has a 100ft 36" drain pipe through the middle of the dam, unfortunately one of the 20 ft sections collapsed and the enitre 100ft of plastic nneds to be replaced. Would it be better to just dig up the pipe and refill and use the emergency overflow by lowering it to the desired watrer level (about 2 ft) and filling this with rip rap and putting down filter fabric. My lake drains about 300 acres and the width of the emergency overflow is 24ft wide and 60 feet long.
