You can put in right below the dam if you can get down to it, but you're gonna need 4WD with high clearance, and even then it's iffy. A buddy of mine lives in Eminence and used to be friends with the guy from the Amy Corps and they used to put down gravel and bulldoze it once in a while but I don't think they've done that in years and it's really washed out bad last I saw. Last time he and I went there he almost couldn't get his trailer out of there and it blew out both tires. I wouldn't recommend it. And another big challenge to trying to fish just below that dam is that once you leave the channel, there are some SERIOUS rocks not far under the surface, just waiting to take out someone's lower unit. My buddy's in his 70's and been fishing it since he was a kid, so he knows them, but I'd be scared to try it myself.