I have never fished there but fish relate to cover and water depth according to temperature, available forage, and current. The bridges most people fish on Guntersville are on major creeks and act as funnels as fish move up and down these creeks. The bridge pilings offer cover to bait fish and there are channel ledges on both sides of the bridges that allow fish to move up and feed. I'm sure when the conditions are right the same thing will occur in your area.