To get to that stretch of duct like Fisher said, exit at the 138 and head east like going to Silverwood. You will make a left, north, at the only gas station you see, it's a little mom and pop place on the south corner. This road will turn into a dirt road. The access road to the duct is about 2 miles up and it's the only paved road exiting this dirt road. Follow it up the hill and park at the access gates. I have heard of some really large fish coming out of this stretch.
Bucktails, swimbaits and cranks have been producing for me on the linesides. Been slaying the kitties with chicken livers and clams.
Hope this helps.