Interstate I-35 near Exit Number 89
The normal speed limit on insterstate highways in Iowa is 70. By the cities, it drops to 65, and due to construction a couple miles from this location, it drops to 55. This is a new exit and overpass. The local city has annexed this area, and therefore the local city cops will sit hidden on top of this overpass and catch people. They are doing this a couple times a week during the day. I don’t know if they are doing it at any other times.