The Kansas Turnpike is a 236-mile (380-km) freeway-standard toll road that lies entirely within the U.S. state of Kansas. It runs in a general southwest-northeast direction from the Oklahoma border, and passes through several major Kansas cities, including Wichita, Topeka, Lawrence and Kansas City. The turnpike is owned and maintained by the Kansas Turnpike Authority (KTA), headquartered in Wichita.

The Kansas Turnpike was built from 1954 to 1956, predating the Interstate Highway System. While not part of the system's early plans, the turnpike was eventually incorporated into the Interstate system in late 1956, and is designated today as four different Interstate Highway routes: I-35, I-335, I-470, and I-70. The turnpike also carries a piece of U.S. Route 24 and U.S. Route 40 in Kansas City.

Because it predates the Interstate Highway System, the road is not engineered to current Interstate Highway standards, and notably lacks a regulation-width median. To attain the reduced risks of head-on collisions which were designed into Interstate-standard roadways, the Kansas Turnpike now has continuous, permanent Jersey barriers in the median over its entire length. On opening, there was no fixed speed limit on the highway; drivers were merely asked to keep to a "reasonable and proper" limit, although shortly afterward signs were erected in certain stretches indicating a maximum speed of 80 miles per hour.

Around 120,000 drivers use the turnpike daily. The road features numerous services, including a travel radio station and six service areas. One of these service areas is notable for the presence of a memorial to University of Notre Dame football coach Knute Rockne, who died near the current highway's route.

The turnpike is self-sustaining, deriving its entire revenue from the tolls collected and requiring no tax money for maintenance or administration. (Read more...)