Hi! I just joined the forum and looking for some wise counsel! I am building a 12 acre largemouth bass lake in Ohio that will have a long, curved dam due to the slope of the land from north to south (max height on the backside of the dam will be 36' in some areas). The two engineering firms we hired (one geotechnical and one design) are offering me an option between using a ductile pipe or a concrete pipe for the spillway. The pipe will be 100 linear feet and 18". Which would you recommend? I believe the ductile will be cheaper...but I am more interested in what is the best product for the job. It is very important to me that we have a solid dam and use the best material possible to prevent leakage. Thanks for your help!
