Pennsylvania (Penn) avenues. East of Penn, the highway curves southeast, leaving the Memorial Road corridor. The next interchange is at Western Avenue. To the east of here is the second barrier toll plaza. After the toll plaza is the interchange with US-77, a freeway also known as the Broadway Extension. The turnpike then has an interchange at Eastern Avenue. The turnpike then comes to an end at I-35/I-44. Eastbound I-44 splits away from northbound I-35 at this interchange to form the Turner Turnpike, and the eastbound Kilpatrick Turnpike mainline merges into the Turner Turnpike toward Tulsa. Law enforcement along the John Kilpatrick Turnpike is provided by Oklahoma Highway Patrol Troop YE, a special troop assigned to the turnpike. History In 1987, the Oklahoma Legislature authorized construction of the first phase of the turnpike, between I-35 and Lake Hefner Parkway. It was completed in 1991. In 2001, an extension of the turnpike to I-40 was completed. On October 29, 2015, Governor Mary Fallin announced that the Kilpatrick Turnpike would be extended south to end at SH-152 near Will Rogers World Airport as part of Driving Forward, a $892 million turnpike package. The project began on January 20, 2018. The westbound direction of the extension was opened January 9, 2020. The eastbound direction was opened on the following dates: January 28 from I-40 to Morgan Road, February 4 from Morgan to SH-152 westbound, and February 14 to SH-152 eastbound. In February 2021, the OTA announced that all of the turnpikes will be going all-electronic tolling within the next five years, starting with the Kilpatrick Turnpike. This change (known as PlatePay) began on the Kilpatrick in July 2021. Future On August 2, 2021, the Oklahoma Transportation Commission approved the designation of the John Kilpatrick 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 that in many of the metropolitan areas, and that update