(a) Purchasing or erecting, equipping, repairing, reconstructing, remodeling and enlarging county buildings, courthouses, office buildings, jails, hospitals, nurses’ homes, health centers, clinics, and related facilities, and the purchase of land therefor;

(b) Erecting, equipping, repairing, reconstructing, remodeling, or acquiring county homes for indigents, and purchasing land therefor;

(c) Purchasing or constructing, repairing, improving and equipping buildings for public libraries and for purchasing land, equipment and books therefor, whether the title to same be vested in the county issuing such bonds or in some subdivision of the state government other than the county, or jointly in such county and other such subdivision;

(d) Establishing county farms for convicts, purchasing land therefor, and erecting, remodeling, and equipping necessary buildings therefor;

(e) Constructing, reconstructing, and repairing roads, highways and bridges, and acquiring the necessary land, including land for road building materials, acquiring rights-of-way therefor; and the purchase of heavy construction equipment and accessories thereto reasonably required to construct, repair and renovate roads, highways and bridges and approaches thereto within the county;

(f) Erecting, repairing, equipping, remodeling or enlarging or assisting or cooperating with another county or other counties in erecting, repairing, equipping, remodeling, or enlarging buildings, and related facilities for an agricultural high school, or agricultural high school-junior college, including gymnasiums, auditoriums, lunchrooms, vocational training buildings, libraries, teachers’ homes, school barns, garages for transportation vehicles, and purchasing land therefor;

(g) Purchasing or renting voting machines and any other election equipment to be used in elections held within the county;

(h) Constructing, reconstructing or repairing boat landing ramps and wharves fronting on the Mississippi Sound or the Gulf of Mexico and on the banks or shores of the inland waters, levees, bays and bayous of any county bordering on the Gulf of Mexico or fronting on the Mississippi Sound, having two (2) municipalities located therein, each with a population in excess of twenty thousand (20,000) in accordance with the then last preceding federal census;

(i) Assisting the Board of Trustees of State Institutions of Higher Learning, the Office of General Services or any other state agency in acquiring a site for constructing suitable buildings and runways and equipping an airport for any state university or other state-supported four-year college now or hereafter in existence in such county;

(j) Aiding and cooperating in the planning, undertaking, construction or operation of airports and air navigation facilities, including lending or donating money, pursuant to the provisions of the airport authorities law, being Sections 61-3-1 through 61-3-83, Mississippi Code of 1972, regardless of whether such airports or air navigation facilities are located in the county or counties issuing such bonds;

(k) Establishing rubbish and garbage disposal systems in accordance with the provisions of Sections 19-5-17 through 19-5-27;

(l) Defraying the expenses of projects of the county cooperative service district in which it is a participating county, regardless of whether the project is located in the county issuing such bonds;

(m) Purchasing machinery and equipment which have an expected useful life in excess of ten (10) years. The life of such bonds shall not exceed the expected useful life of such machinery and equipment. Machinery and equipment shall not include any motor vehicle weighing less than twelve thousand (12,000) pounds;

(n) Purchasing fire fighting equipment and apparatus, and providing housing for the same and purchasing land necessary therefor;

(o) A project for which a certificate of public convenience and necessity has been obtained by the county pursuant to the Regional Economic Development Act;

(p) Constructing dams or low-water control structures on lakes or bodies of water under the provisions of Section 19-5-92;

(q) For the purposes provided for in Section 57-75-37.