Whenever any improvement bonds or warrants are issued as herein provided, the treasurer shall immediately thereafter mark on the assessment roll of such local improvement district opposite each assessment which has been paid, the word "paid" together with the date of payment, and shall immediately thereafter enter in a docket to be kept for that purpose, known as "local improvement installment docket" under separate heads for each local improvement district, all unpaid assessments as shown on such assessment roll, said docket to be made up from the assessment roll, and shall contain in separate columns the number of the assessment, the name of the owner, the description of the property, the amount of the total assessment, the amount and date when due of each annual installment with interest added, and a blank column in which shall be marked the date of payment of each installment. Such docket shall stand thereafter as a lien docket for such assessments so shown until paid.