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 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 Red River. The route begins at US-81 in Ryan and ends at US-70 in Kingston, a length of . SH-32 was first added to the state highway system at the end of 1934; none of the highway as created is part of the present-day SH-32 (having been encroached upon by US-70). SH-32 is also linked with SH-199—part of SH-32 was spun off