Hill Air Force Base has five gates today: West (SR 103), South (232), Roy (97), Southwest, and East gates. The first two are open 24/7, Roy is open during the day on weekdays, Southwest only during rush hour on weekdays, and East only during special events or other gate closures. But historically, there was a gate on the north side of the base as well.
In November 1961, the State Road Commission created SR 168 as a short spur south from the existing SR 60 in Riverdale to this north gate. The state legislature approved it the next year with the following definition:
From north entrance to Hill Air Force Base east, to Route 60.Yes, that "east" in the description is a typo; the 1963 legislature corrected that to a more appropriate "northerly". And aside from a few minor changes and clarifications in the legislative description, the route has not changed since. Here's a map of the area from OSM:
|I've highlighted SR 168 here in blue. (map from OSM)|
The north gate was eventually closed at some point - from what I can get on Historic Aerials, it was probably sometime between 1981 and 1993. (If you have more information about this, please don't hesitate to leave a comment below.)
But here's the thing - SR 168 was never decommissioned. The north gate has been closed for a good while, but 168 is still there. It drives like a minor residential road and absolutely does not belong on a state route system. Perhaps UDOT has held onto it in case Hill opens the north gate again...or maybe Riverdale won't take it back unless UDOT can give them a mileage swap (and Riverdale doesn't really have any good state route candidates that aren't SRs already). Whatever the reason, 168 still sits there as a random spur to nowhere.
Photos taken May 2018. I don't think there was a single reassurance shield posted in either direction when I drove this, though there is now one at the north beginning of the route.
|The north end of the route. Stay straight for SR 60 west (compass north) to Riverdale, or make a sharp right for SR 60 east to South Weber. The arrows are much older than the END banner and beehives, which are of the gross newer variety.|