(1) It is hereby declared to be the public policy of the state to facilitate, assist, and promote the efforts of counties within this state in the planning, construction, acquisition, improvement, equipping, maintenance, and operation of public projects.
(2) It is further the intent of the general assembly:
(a) To authorize counties in this state to finance the acquisition, construction, and improvement of public improvements, buildings, and facilities which such counties are authorized to acquire, construct, and improve;
(b) That this part 5 shall operate only as a grant of additional financing authority and shall not be construed to authorize counties to finance the acquisition, construction, or improvement of any public improvements, buildings, or facilities which such counties are not otherwise authorized to acquire, construct, or improve pursuant to applicable provisions of law;
(c) To vest such counties with all powers that may be necessary to enable them to accomplish such financing purposes, including the power to issue negotiable revenue bonds, notes, and other obligations payable as set forth in this part 5, which powers in all respects shall be exercised for the benefit of the inhabitants of this state and for the promotion of their health, safety, and welfare.