The way that I like to establish the nomal overflow and it works in most cases is to cut a swell at one corner or the nearest location that is possible to where the flow needs to go.I like to put down a small liner at the mouth of the swell then line it with rip rap.You will need to calulate you flow to see how big you need to make your swell but you won' have that ugly pipe sticking out of your dam.DOC

Doc