Usenet discussion of Gwinnet County's freeway to nowhere. (the unlabelled and isolated bit of "freeway red" in the center of this map, which shows how close it comes to I-85 without connecting to it). Also one of the few freeways that I've seen anywhere built and maintained by city or county (not state) government. And also one of the few non-toll freeways that have no posted numeric designation as either a state, U.S., or Interstate route. (According to someone in the thread, the RRP is designated SR 864 but that number is never seen anywhere)