Muskogee Turnpike

Opened in 1969, the 53-mile (85.2 km) route begins at the Broken Arrow Expressway (SH-51) southeast of Tulsa, near an intersection with the Creek Turnpike. The Turnpike ends at Interstate 40 west of Webbers Falls. The Muskogee Turnpike's north section is connected to its south section by Oklahoma 165. ==History==

The Muskogee Turnpike originally bore no numbered designation. On March 10, 2014, the Oklahoma Transportation Commission unanimously approved a motion to apply the SH-351 designation to the turnpike. On May 5, 2025, the Oklahoma Transportation Commission unanimously approved a motion to apply the Interstate 343 designation to the turnpike, pending approval by the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA). This numbering, if approved, would not fit the usual conventions of existing three-digit auxiliary Interstate Highways, where a single digit is prefixed to the two-digit number of its parent Interstate Highway since it would have no relation to I-43, which only runs in Wisconsin. As a result, it is unknown what the route's parent interstate would be. ==Tolls==

, a two-axle vehicle pays $7.00 PlatePay ($3.30 with Pikepass) to drive the full length of the Turnpike. There are two toll collection plazas located along the length of the Muskogee Turnpike. The Muskogee Main Line Plaza is located approximately south of the city of Muskogee and has an inline Pikepass lane, an exact change lane, and an attended collection lane. Speed limits through this plaza are for all vehicles. The Coweta Main Line Plaza is located approximately north of the city of Muskogee at the Coweta exit, and has four collection lanes: one exact change lane, two attended lanes, and a Pikepass lane that is independent from the plaza. The speed limit at this plaza is for all vehicles, except Pikepass vehicles, which bypass the collection plaza. As of 2025, the cash lanes are no longer used. The Oklahoma Turnpikes are now cashless, utilizing either the Pikepass system, or the plate pay system, where OTA mails bills for the turnpike traveled on. ==Services==

Located approximately north of the city of Muskogee is a newly renovated concession plaza which reopened in April 2011. This concession plaza has a Love's travel stop, as well as a McDonald's restaurant. The concession plaza has free restrooms, is open 24 hours a day, and is located in the median for easy access from both travel directions. Groundwork was laid out for a second concession plaza just north of the Muskogee Main Line collection plaza; however this plaza was never built, and all pavement and ramps have since been removed. Law enforcement along the Muskogee Turnpike is provided by Oklahoma Highway Patrol Troop XB, a special troop assigned to the turnpike. ==Exit list==