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 50 Oklahoma State Highway 50 State Highway 50 (abbreviated SH-50) is a state highway in northeastern Oklahoma. The majority of the highway is in Woodward County, though the northernmost are in Woods County. SH-50 runs near two state parks and has a lettered spur that goes to each of them. State Highway 50 begins at US-183/270/SH-3 between Woodward and Mutual. Much of the first section of highway runs through the Moscow Flats area west of the North Canadian River. The highway crosses Indian Creek, a tributary of the North Canadian, before crossing the river itself. SH-50 intersects US-412 between Woodward and