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 137 to the route since. Oklahoma State Highway 137 State Highway 137 (SH-137) is a highway in Ottawa County, Oklahoma. It is a two-lane highway beginning at State Highway 10 east of Miami and ends at U.S. Highway 60 in Twin Bridges State Park on the north side of the Grand Lake o' the Cherokees. It has no lettered spur routes. SH-137 was established circa 1957. The highway's northern terminus was formerly US-69 Alternate in Quapaw, but the portion of highway from SH-10 to US-69 Alternate has since been removed from the state highway system. SH-137 begins at an intersection with