If the first assessment for any improvement or acquisition, or if the bonds issued, are insufficient to pay all costs, damages, and expenses incurred or to be incurred, including any judgments rendered or to be rendered, and the costs and expenses of such action or proceedings, or the estimated amount of any thereof, the council may pay the deficit from available funds, or may order a supplemental assessment to raise such deficit.
(Ord. 1586 §11 (part))