Miss. Code Ann. § 55-5-29: Miss. Code Ann. § 55-5-29

All lands for right of way to be acquired in the fee simple and all easements necessary to be acquired for the purposes of the proposed national parkway development may be acquired by the State Highway Commission in the name of the state, as may be required by the act of the United States congress applicable thereto. Any lands owned by the state or by any county, city, village or town, may be conveyed to the United States for the purposes of the parkway in the manner provided by law. The commission may acquire such lands by gift, purchase agreement, or by exercising the right of eminent domain in any manner that may be provided by law for the acquirement of lands for public purposes. The commission shall have authority to convey such lands to the United States government or any of its agencies, as may be required by the act of the United States Congress applicable to such national parkway.