Whenever in the judgment of the governing body of any city the special assessments on any lot or piece of land within a benefit district created by such city would be burdensome if collected in one installment, the said governing body may levy the amount of said special assessment in not to exceed ten (10) annual installments together with interest at not to exceed the maximum rate of interest prescribed by Kan. Stat. Ann. § 10-1009 upon the whole amount remaining due and unpaid each year.