Oklahoma State Highway 270 1979, US-270 ran through Oklahoma City on surface streets. It left the city and ran through Choctaw concurrent with US-62. US-270 split away from US-62 in Harrah, and continued on to Shawnee on what is now SH-270. On March 5, 1979, US-270 was rerouted to run concurrent with Interstate 40 from south of Calumet in Canadian County through the Oklahoma City metro, exiting the Interstate onto a surface alignment in Shawnee. Presumably, SH-270 was commissioned the same date. The realignment of US-270, with SH-270 on the old alignment between Harrah and Shawnee, appears on the 1979 state map. SH-270 followed
Oklahoma State Highway 14 remainder of the route. SH-14 was rerouted to follow an independent routing northward from Waynoka (the present day routing) in 1940, and the section of the highway connecting Alva to the Kansas line was dropped (making this road solely US-281). The rest of the highway, still concurrent with US-183 and US-281, was decommissioned the following year, leaving SH-14 at its present-day termini. No changes have been made to SH-14 since. Oklahoma State Highway 14 State Highway 14, abbreviated as SH-14, is a highway maintained by the U.S. state of Oklahoma. It is long, with its entire route falling in Woods