Ala. Code § 11-1-10

(a) The county commission in addition to all other powers and authority is hereby authorized and empowered to enter into contracts, leases, compacts, or any other form of agreement with the United States of America or any of its agencies, departments, bureaus, divisions, or institutions, with the State of Alabama or any of its agencies, departments, bureaus, divisions, or institutions and with any other county or municipality within or without the state for the purpose of receiving or acquiring funds, matching funds, services, materials, supplies, buildings, structures, waterways and docking facilities, and any and all other benefits deemed for the public interest in the promotion of industrial, agricultural, recreational, or any other beneficial development.

(b) The contracts, leases, compacts, or other forms of agreement may contain such covenants and considerations as considered reasonable and necessary and for public use only, including, but not limited to, contributions by the county either in funds or materials, supplies, machinery, services, labor, rights-of-way, easements, buildings, terminals, and related facilities for waterway improvements and expansion and may contain other provisions required by the contracting agencies to provide a useful and feasible development for use by the public.