311 Bypass speed limit goes from 65 to 60 as you enter HP city limits. Then goes down again to 55 near Kivett Drive exit. Then goes down again to 45 as whole road exits onto Business 85. Road is new, and was built to handle more traffic than is usually on it, and it’s very easy to drive above the posted speed limit. Police use marked cars, unmarked cars, and motorcycle cops to patrol this area. Cops frequently sitting in median behind bridge supports, or on exit ramps. Be careful all along this stretch, but especially in the area where it goes down to 55 and 45 mph. A lot of the traffic doesn’t slow down there, and the cops patrol that area.