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 19 77 in Pauls Valley. After passing through the Pauls Valley area, SH-19 crosses U.S. Highway 177 west of Stratford, Oklahoma. It then ends, concurrent with SH-3W at the Richardson Loop outside of Ada. SH-19 has two lettered spurs. Oklahoma State Highway 19 State Highway 19, abbreviated as SH-19, is a highway running through the southern part of the U.S. state of Oklahoma. It is signed east–west. SH-19 begins at an intersection with US-283 in Blair, Oklahoma. SH-19 heads east from Blair for 23 miles (37 km) without intersecting another highway before meeting U.S. Highway 183 north of Roosevelt. It continues