Cimarron Turnpike

The Cimarron Turnpike is a toll road in north-central Oklahoma. Opened to traffic in 1975, the route runs 67 miles (108 km), from a junction with Interstate 35 north of Perry, to Westport, just west of Tulsa. The route also consists of a 7.2-mile (11.6 km) spur which runs from the mainline southwest to a junction with US-177 north of Stillwater.

US-412 was duplexed with the entire route in 1988. At either end of the Turnpike, US-412 begins (or ends, depending on direction) a concurrency with US-64; thus, it can be said that US-64 provides a free, but not controlled-access, alternative to the toll road.

A two-axle vehicle currently pays $2.50 ($2.35 with Pikepass) to drive the full length of the Turnpike.

Law enforcement along the Cimarron Turnpike is provided by Oklahoma Highway Patrol Troop YA, a special troop assigned to the turnpike.