One river that i fish on has built up a long jam that goes across the river under the bridge. Thers a small path that allows boats to go through(barely). I have never fished this logjam but not even a mile down river from it there are tons of trotlines that people are always catchings flatties on. Up river from it there are not near as many trotlines but still have seen some flats taken. Im just wonderin wich side of it would better to fish(up or down river). PS: This river flows into the lake if it makes any difference.