Oklahoma State Highway 152 SH-4. In Oklahoma County, it heads northeast to connect to the Airport Road freeway, which provides access to Will Rogers World Airport, the main airport for Oklahoma City and most of central Oklahoma. SH-152 then ends at Interstate 44. The first addition of any part of what is now SH-152 to the state highway system occurred between May 1, 1926 and November 1, 1927. Sometime between these dates, State Highway 41 was commissioned to run between US-66 in Sayre and SH-2 (now US-81) near Minco. SH-41 was extended east to Oklahoma City sometime between August 1933 and October 1935. SH-41's
Oklahoma State Highway 171 Oklahoma State Highway 171 State Highway 171, abbreviated as SH-171, is a state highway in Cimarron County, Oklahoma, in the Oklahoma Panhandle. It runs for north and south through the eastern part of the county, connecting U.S. Highway 287 near the Oklahoma-Texas state line to US-56 in Keyes. The only other highway it intersects with is US-64/412/SH-3, three miles (5 km) south of Keyes. SH-171 has no lettered spur routes. SH-171 was established circa 1974 with its present-day routing and termini, and may have initially been numbered SH-170. It had assumed its current number by 1976. State Highway 171 begins