That (a) if, by reason of miscalculation or the happening of unforeseen events or conditions, the proceeds of the bonds authorized by the Bond Resolution should prove to be insufficient to pay in full the improvement costs assessed against benefited properties, the governing body shall be authorized to issue and sell additional bonds sufficient to make up the deficiency, and such additional bonds shall rank on a parity with the bonds originally authorized and shall be retired by improvement assessments in the same manner as the original bonds.
(b) The municipality may use any funds legally available to it, including proceeds from bonds issued under any other legislative authority, to pay for that portion of the cost of an improvement not financed by bonds secured by improvement assessments. [As added by Priv. Acts 1970, ch. 276, § 16]