If any landowner responsible for making sidewalk repairs shall fail to make the repairs in the manner and within the time required by either the repair permit or the notice of repairs, then the City Council shall direct the City Superintendent or City Engineer to make the repairs, or the Council may, if it elects, let a contract for making the repairs. After the costs of making the repairs have been determined, the City Superintendent or City Engineer shall report the same to the City Council, and the Council shall by resolution direct the City Recorder to enter the amount plus 15% for administrative, legal and engineering expenses in the docket of city liens as an assessment against the property together with the date of entry, the name of the owner and a description of the property assessed. The assessment shall thereafter be collected in the manner prescribed by O.R.S. 223.505 through 223.595, and all assessments docketed as liens shall draw interest at the rate of 6% per year from the date of the entry in the city lien docket until paid.