ðə ɹˈaʊt ˈɛndz æt ðə stˈeɪt lˈaɪn, wˌaɪl ðə ɹˈaʊt kəntˈɪnjuːz əkɹˌɑːs ðə tˈɑːp ʌvðə dˈæm æz ˌoʊklɐhˈoʊmə stˈeɪt hˈaɪweɪ nˈaɪnti wˈʌn.
The route ends at the state line, while the route continues across the top of the dam as Oklahoma State Highway 91.