On Fort Riley Blvd, as you pass 17th street and begin to exit the city of Manhattan, heading towards Ogden and Fort Riley. There are two sections of grassy median that lie underneath an overpass, right where the highway curves to the leFort At any time of day, but usuall around 9am and 6pm, there will be 1 or 2 cop cars hidden in that median and obscured by the overpass and curve in the road. They clock cars coming from both directions in a 300 yard zone where the 45mph city speed increases to 55mph highway speed, and in another 600 yards to 65mph. Speed up or slow down more than a few yards on the wrong side of the sign and expect a ticket.