johnathon creek bridge.this is another good spot to try out a new unit.after passing under us 68 bridge heading east look to the north for the old road bed at the edge of the water.the road bed crosses the hole bay one side to the other with plenty of man made structure culverts and the bridge.this is one of the few times that i recomend a slow chart speed.the bridge is so big that it makes more scents to slow the chart speed to get more of the bridge into one shot so you can post your pretty picture on the internet