Art. IX, Sec. V, Para. VI. Levy of taxes to pay bonds; sinking fund required.

Any county, municipality, or other political subdivision of this state shall at or before the time of incurring bonded indebtedness provide for the assessment and collection of an annual tax sufficient in amount to pay the principal and interest of said debt within 30 years from the incurring of such bonded indebtedness. The proceeds of this tax, together with any other moneys collected for this purpose, shall be placed in a sinking fund to be used exclusively for paying the principal of and interest on such bonded debt. Such moneys shall be held and kept separate and apart from all other revenues collected and may be invested and reinvested as provided by law.