High Quality Content by WIKIPEDIA articles! State Highway 270, abbreviated as SH-270, is a highway maintained by the U.S. state of Oklahoma. It runs on a former alignment of US-270 between US-62 in Harrah and US-177 north of Shawnee. (US-270 is now concurrent with Interstate 40 through the area.) The highway is 14.4 miles (23.1 km) long. SH-270 has no lettered spur routes.