The Turner Turnpike is a toll road in central Oklahoma, connecting its two largest cities, Oklahoma City and Tulsa. Authorized by the Oklahoma Legislature in 1947 and opened in May 1953, it is the oldest of the state's eleven turnpikes. The route is signed as Interstate 44 for its entire length, but was constructed prior to its designation as such. The Turner Turnpike was named after Governor Roy J. Turner, who pushed for efforts to build this toll road to connect the state's two largest cities. Route description The route begins north of Oklahoma City, as Interstates 35 and 44 and SH-66 approach it from the south. I-35/SH-66 split to the north, and I-44 begins its journey eastward as the Turnpike. (Traffic may also travel west at this point, along the John Kilpatrick Turnpike.) It ends later, southwest of Tulsa, at a junction with SH-66. The posted speed limit is as high as , making it possible to drive legally from Tulsa to downtown Oklahoma City in under 90 minutes. In addition to the Oklahoma City and Tulsa entrance points on the turnpike, other interchanges are located in Wellston, Chandler, Stroud, Bristow, near Kellyville and Sapulpa. Toll plazas are located at each of those interchanges. The toll plaza at Bristow was the first of the new plazas reconstructed incorporating "state-of-the-industry" electronic toll collection (ETC) and other operational features for the convenience and safety of motorists utilizing the turnpike system. Additional toll plazas, similar in design, were subsequently reconstructed at Chandler, Stroud, Kellyville, and Sapulpa. A new interchange east of the western terminus was added at Hogback Road in Luther, and was opened in May 2011. Future On August 2, 2021, the Oklahoma Transportation Commission approved the designation of the portion of the Turner Turnpike from its western terminus to the Kickapoo Turnpike as part of an extension of Interstate 240, forming a beltway around Oklahoma City. ODOT Director Tim Gatz stated in the Transportation Commission meeting that the numbering change was primarily to aid in navigation using digital mapping and routing applications. Gatz also said, "If you look at the Interstate 240 designation on the loop around the Oklahoma City metropolitan area, we are finally to the point where we have a truly contiguous route there that can shoulder the burden of some of that transportation need in a loop format. That's common practice across the country, and you'll see