Miss. Code § 65-5-9
For the purposes of this chapter, the highway authorities of the state, county, city, town, or village may acquire private or public property and property rights for controlled-access facilities and service roads, including rights of access, air, view, and light, by gift, devise, purchase, or condemnation in the same manner as such units are now or hereafter may be authorized by law to acquire such property or property rights in connection with highways and streets within their respective jurisdictions. All property rights acquired under the provisions of this chapter shall be acquired in accordance with the provisions of Section 65-1-47, and the estate acquired shall be specified in accordance with said section. In connection with acquisition of property or property rights for any controlled-access facility or portion thereof or service road in connection therewith, the state, county, city, town, or village highway authority may, in its discretion, acquire an entire lot, block, or tract of land if, by so doing, the interests of the public will be best served, even though said entire lot, block, or tract is not needed for the right of way proper.
Miss. Code § 65-5-9