No county shall have the power to pay out of its general funds or otherwise contribute any part of the costs of acquiring a project and shall not have the power to use land already owned by the county or in which the county has an equity for construction thereon of a project or any part thereof. The entire cost of acquiring any project must be paid out of the proceeds from the sale of bonds issued under the authority of this article; provided, however, that this provision shall not be construed to prevent a county from accepting donations of property to be used as a part of any project or money to be used for defraying any part of the cost of any project.
Ala. Code § 11-20-11 (1975)