Miss. Code § 65-1-47
The State Highway Commission shall have complete authority to issue rules, regulations and orders under which the State Highway Department shall have control and supervision, with full power and authority under rules, regulations and orders issued by the commission, to locate, relocate, widen, alter, change, straighten, construct or reconstruct any and all roads on the state highway system heretofore or hereafter taken over by it for maintenance as a part of such system, and shall have full and complete authority for regulating the making of all contracts, surveys, plans, specifications and estimates for the location, laying out, widening, straightening, altering, changing, constructing, reconstructing and maintaining of and the securing of rights-of-way for any and all such highways, and to authorize the employees of the State Highway Department to enter upon private property for such purposes.
The State Highway Department, under the rules, regulations and orders spread upon the minutes of the State Highway Commission, is authorized and empowered to obtain and pay for the rights-of-way of such width as it may determine to be necessary for such highway or for any alteration or change therein or relocation thereof by agreement with the owners of such lands. Rights-of-way of not less than sixty (60) feet wide shall be acquired except within the boundaries of towns and cities where unusual conditions exist, in which case the commission is authorized and empowered to have obtained and paid for such rights-of-way of such width as it may determine to be necessary. Said commission may have condemned any and all land or other property needed for such purposes or either of them; may have condemned or acquired by gift or purchase lands containing road building materials and develop and operate pits, mines or other properties for the purpose of obtaining road material; and have condemned or acquired by gift or purchase lands necessary for the safety and convenience of traffic.
Said commission, in case an agreement cannot be reached with the owners of land containing road building materials or of any additional land necessary for widening any existing public highways, for laying out a new public highway, or for changing the route of an existing public highway, as provided in the foregoing part of this section, shall be authorized to have condemned any land needed for either of said purposes, as is fully set forth in this section. The proceedings to acquire such lands by a condemnation shall be in conformity with the statutes on the subject of "eminent domain," the power of eminent domain being hereby expressly conferred upon said commission for such purposes. Such proceedings shall take precedence over all other causes not involving the public interest in all courts and shall be given preference to the end that construction and reconstruction of highways hereunder may not be unreasonably delayed. The amount of such compensation and damages, if any, awarded to the owner in such proceedings shall be paid out of the State Highway Fund. The authorities constructing such highway, under the authority as provided in this section, shall use diligence to protect growing crops and pastures and to prevent damage to any property not taken. So far as possible, all rights-of-way shall be acquired or contracted for before any construction contract work order is issued.
The estate which the State Highway Commission is authorized to acquire by deed or condemnation as set forth above shall include all rights, title and interest in and to the lands or property being acquired, excepting and excluding all the oil and gas therein or thereunder and such other rights, title or interest which are expressly excepted and reserved to the property owner, his successors, heirs or assigns in the deed or condemnation petition by which the property is acquired. Any property interest acquired may be in unlimited vertical dimension. The State Highway Commission shall decide what right, title and interest are necessary for highway purposes on each particular project and may, by order on its minutes, authorize its agents to expressly except all or any others.
Miss. Code § 65-1-47