Oklahoma State Highway 52State Highway 52 is two once-connected highways in the U.S. state of Oklahoma. There are no lettered spur routes from either of them.Route descriptionSouthern sectionThe southern SH-52 is a short, state highway in McIntosh County, Oklahoma. It connects State Highway 9 to the town of Hanna.Northern sectionThe northern SH-52 runs for from US-266 northeast of Grayson to SH-16. Along the way it intersects US-62 near Morris.HistoryAt one time, at least as recently as 1972, the two sections of SH-52 were connected by a dirt section running from SH-9 to US-266. This section has since been decommissioned.