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 145 Oklahoma State Highway 145 State Highway 145, abbreviated as SH-145 or OK-145, is a short, highway in Garvin County, Oklahoma. It connects Interstate 35 at its west end to US-77 in Paoli at its east end. It does not have any spur routes. State Highway 145 begins at Exit 79 along Interstate 35 in northern Garvin County. From this point, it heads east along Davis Avenue until it reaches the town of Paoli. The route ends at US-77 in the center of the town. "TO Interstate 35" signage is also present along westbound SH-145. State Highway 145 was added to