Section 15-6-503 - Assessment; when payable; warrants; collection; interest; treasurer's duties(a) All costs and expenses of building any sidewalk under this article shall be defrayed by special assessment payable in installments and extending over a period of four (4) years. The governing body may issue special improvement warrants for the installments and levy assessments to pay them. The assessments shall be collected as other city taxes. (b) Special improvement warrants shall bear interest at the rate allowed on public warrants pursuant to W.S. 9-4-106.(c) The city treasurer shall receive payment in full and give receipts for the entire special assessment of this character on any property with interest to the date of payment when tendered by the owner or agent. Upon receipt of any entire payment the city treasurer shall give notice thereof in writing to the proper tax authorities.