I'm no dirt guy, but it looks like there is a lot of loose rock in the soil used for the dam. Those pipes appear way too small to me, but, someone who knows what they're doing will advise you far better than I can. Is there an emergency spillway on the dam?

Is that a covered bridge? Whatever it is, it looks great!

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.