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 32 Davidson to Kingston, the route covered a total of along present-day roads. However, the westernmost of SH-32 still overlapped US-70. On September 6, 1966, after over twenty years of cosignage, SH-32 was truncated to its current western terminus in Ryan. Everything west of Waurika was now solely US-70. After the truncation of 1966, SH-32 had the same route that it does today. Oklahoma State Highway 32 State Highway 32 (SH-32 or OK-32) is a state highway in the U.S. state of Oklahoma. The highway runs from west to east across the southern part of the state, just north of the