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 128 Oklahoma State Highway 128 State Highway 128 (abbreviated SH-128) is a state highway in Le Flore County, Oklahoma. It connects U.S. Highway 59 in Heavener to the Arkansas state line, where it becomes Arkansas Highway 28. It has no lettered spur routes. SH-128 was first added to the state highway system circa 1956. It has been realigned once, to better match up with roads across the Arkansas line. State Highway 128 begins at US-59/US-270 in Heavener. From the terminus south of downtown, the highway follows West Avenue I to East 1st Street, where it turns south, running parallel to US-59/US-270.