Okla. Stat. tit. 69, § 69-649: Grant of right to close, inundate, destroy, alter or

appropriate county highway for public purposes.

The board of county commissioners of each county, by and with the

written approval of the Commission, may grant to the United States

of America or any irrigation district, conservancy district or water

user's association, organized under the laws of the state, the right

to close, inundate, destroy, alter or appropriate any county highway

in such county in connection with the construction, development,

operation or maintenance of any irrigation, reclamation, water

conservation and utilization, flood control, military or national

defense project, for needful public buildings, or other public

projects being constructed, operated, developed or maintained by the

United States of America, or any such district or association, upon

such terms and conditions and for such consideration as the board of

county commissioners may determine to be just and proper. The grant

of any such right or rights may include the right to construct

irrigation ditches and canals across and along any such highway.