Oklahoma State Highway 66 Oklahoma State Highway 66 State Highway 66 (abbreviated SH-66) is a state highway in the U.S. state of Oklahoma, beginning at U.S. Highway 81 in El Reno and ending at U.S. Highway 60 near White Oak. The highway was designated in 1985 as a replacement for the decommissioned US-66. Although most of the highway follows Historic Route 66, the highway follows US-66's final alignment, joining Interstate 44 through Tulsa and Oklahoma City, while older versions of the route follow various city streets through both cities. The highway has retained its importance for most of its length due to its paralleling
Oklahoma State Highway 132 (1.6 km) to the west of unincorporated Hawley. Its final highway junction in Oklahoma is with State Highway 11. From here, the highway continues due north, passing west of Sand Creek, Wakita, and Gibbon en route to Manchester. After passing through Manchester, the highway turns west along the Oklahoma–Kansas state line. The road then curves back to the north, fully entering the state of Kansas, and becomes K-179. SH-132 was first designated on July 14, 1956. Initially, the highway began at what was then SH-38 (present-day SH-45) in Carrier, proceeding north along its present-day route to end at US-64 east