The manufacture, distribution and sale of cement and cement products are hereby declared to be works of public necessity and importance in which the state may engage, and suitable laws may be enacted by the Legislature to empower the state to acquire, by purchase or appropriation, all lands, easements, rights of way, tracks, structures, equipment, cars, motive power, implements, facilities, instrumentalities and material, incident or necessary to carry the provisions of this section into effect: provided, however, that no expenditure of money for the purposes enumerated in this section shall be made, except upon a vote of two-thirds of the members elect of each branch of the Legislature.
Structure South dakota constitution