Nope, no CC, only CNBG, RES, and LMB. The bottom of the inlet culvert (away from pond) should be higher than the spillway, so I shouldn't get back flow thru the cuvert if this is the case. If its not, the culvert will surely have to be reworked. During a heavy rain there is a ton of water that flows through that 16" culvert and it it wont flow freely, the berm will be topped and washed severly for about 100' all the way to the pond.
Another heavy rain or 2 should answer the question. I have a fairly robust warranty provision in the Contract, so my contractor will be required to fix at his cost. Bottom of the outlet culvert elevation (at the pond) was supposed to be the exact same elevation as the spillway.
Whether he chooses to do so is another matter, but I believe he would.
Thanks for the response esshup.
