I'd think that the company that I linked to might have an engineer on staff. If not, I'm sure they'd know of one. It'd be worth a call.
I'd be leery of using an open channel for a primiary spillway. Like they said, too great of a chance for a dam blow out without extensive erosion control methods. I think siphon system would be less expensive.
12" dia pipe, 100' long needs aroughly 3 cubic yards of grout to fill.
Last edited by esshup; 03/25/14 01:10 PM.
