Also been reading up on siphon piping systems. I am not getting why it would have prevented the failure my dam experienced. The pipe still goes through the dam at roughly full pool levels. I originally thought it went up and over the top of the dam so you wouldn't have the issue of water seepage along the pipe, through the soil. If the overflow pipe still must be buried in a siphon system, why would it be more resistant to washing soil out and breaching the dam?
