| | Marietta on Barrett Pkwy near Macland
Heading south on Barrett Pkwy, once you cross Dallas Hwy/Whitlock and continue for about 1.5 miles you'll come to a long bridge. After you cross the bridge the cops are on the right side of the road, using LIDAR 90% of the time, radar in bad weather sometimes. You come up over a slight rise after crossing the bridge, and they nail you at that time. You can't see them until it's too late. Speed limit is 45mph on Barrett at that point.