(a) The county court of each county in the State of Arkansas is authorized to grant the United States of America the right to close, inundate, destroy, relocate, alter, or appropriate any county highway in the county in connection with the construction, development, operation, or maintenance of any flood control or other public project being constructed, operated, developed, or maintained by the United States of America, upon such terms and conditions and for such consideration as the county court may determine to be just and proper.
(b) The county court of each county of the State of Arkansas shall have power to execute any and all contracts, deeds, easements, and other instruments of conveyance as may be required in or convenient to the exercise of the powers granted in this section.