(1) The authority granted to boards of supervisors under Section 170 of the Constitution of the State of Mississippi shall be construed to include the right to enter into agreements with the United States for the alteration, relocation, reconstruction, or abandonment of county roadways and the conveyance of easements for term of years, perpetual easements, or fee simple title to the portions of county roadways affected by the construction of flood control projects approved and adopted by the United States or any agency thereof.
(2) Such agreements shall be based upon a consideration deemed reasonable by the board of supervisors and the government.
(3) Any such alteration, relocation, or abandonment of county roadways shall be made pursuant to the authority and procedure of law now in force and effect.
(4) The conveyance of the necessary interest in any such county road right of way shall be for and on behalf of the county and executed by the then acting president of the board, attested by the clerk, and under proper resolution. Such conveyance may include a clause releasing the United States from any further claim as to the county on account of the construction of such flood control project and alteration, relocation, reconstruction, or abandonment of a county roadway or any portion thereof.