(a) All ordinances and contracts for public improvements shall specify how the same are to be paid for. In case payment is to be made in whole or in part to the contractor in special tax bills or other evidence of special assessments, the city shall in no event be liable for or on account of the work to be so paid for.

    (b) The ordinance authorizing the making of any public improvement shall prescribe the manner in which payment for the same shall be made. Such payments may be made in whole or in part by the city, or in whole or in part by special tax bills issued to the contractor, or by special assessment against private property, as provided for by the charter and this Code. The plans and specifications for such improvement shall be adopted by ordinance before any contract therefor shall be let; provided that such adoption may be by reference to plans and specifications which are on file in the office of the city clerk.

(Code 1964, §§ 14.350, 14.450)

     Charter reference(s)--Similar provisions, §§ 72, 78.