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 87 the early 1960s, SH-87's length was at its zenith, as the highway stretched from Idabel to the Arkansas state line. However, on 1963-01-07, US-259 was established. The section of SH-87 from Idabel through Harris was turned over to the new U.S. route, setting the western terminus of the highway to its present-day location. Oklahoma State Highway 87 State Highway 87 is a highway in southeastern Oklahoma, running for . It passes through the extreme southeastern corner of the state, running entirely through McCurtain Co.. It has no lettered spur routes. SH-87 begins at an intersection with US-259 near the unincorporated