Okla. Stat. tit. 69, § 69-317: Cooperation with counties, municipalities, other states

and United States.

The Department shall have the power and authority to cooperate

with the several counties and municipalities of the State of

Oklahoma, and with the State Highway Departments, bureaus,

commissions, and the authorities now in existence or hereafter

created by the Congress of the United States and by the Legislature

of this State, or other states, and by whatever name or title

designated, by providing surveys, maps, specifications, and other

things necessary in planning, supervising, locating, improving, and

constructing roads and highways, and bridges including interstate

bridges, and streets, in any part, section, or area of the State of

Oklahoma.