Lincoln, California Speed Traps
About a mile South of Twelve Bridges (Exit 313), Law enforcement park on the center grass division of the highway and monitor traffic in both directions. These traps are usually setup after the sun has fully set, this makes the law enforcement vehicle nearly impossible to see.
Squad car with a radar gun during rush hour traffic
Coming down past the roundabout park, officer on Stepping Stone watching for speeders. Also, can see intersection of 12 Bridges and whether drivers are making rolling stop at signal before making right turn.
Motorcycle under Twelve Bridges and another motorcycle down the road going south.
Motor officer sits at the intersection to catch speeders coming southbound on the overpass.