Mainly one or two officers will sit under the bridge and mainly shoot the South bound traffic, but they are known the shoot the North bound as well. As you pass the Waukegan road/Route 43 exit continuing on 41 South, they nail you as you come around the curve. Theres construction on the bridge there now (9/8/2003), but theres no reduced speed limit for it. Speed limit is 55mph too. Theres marked and unmarked squad cars that do this as well.