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 38 originally given to an alignment from SH-58 in Carrier south to US-60 and SH-15 (now US-412). The majority of this route had been reassigned to SH-45, with the remainder being added to SH-132, by 1963. The road that is now SH-38 was added to the state highway system in late 1961 to early 1962 as SH-35. When the SH-38 designation was freed up in 1962, SH-35 was renumbered to SH-38. No further changes to the route have occurred since then. Oklahoma State Highway 38 State Highway 38 (abbreviated SH-38) is a state highway in the U.S. state of Oklahoma. It