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 29 in Elmore City. SH-29 next meets Interstate 35 at its Exit 66. Soon after passing under the Interstate, SH-29 meets U.S. Highway 77, and the two highways overlap over the Washita River into Wynnewood. US-77 splits off in downtown Wynnewood, and SH-29 continues eastward for 12 more miles before ending at US-177. SH-29's single lettered spur is SH-29A, which runs for to the small town of Foster. Oklahoma State Highway 29 State Highway 29 (abbreviated SH-29) is an east–west state highway in the U.S. state of Oklahoma. It runs for through Stephens Co. and Garvin Co., and has one lettered