In all cases in which any municipality or any sewer commission or authority established in accordance with law has constructed or caused to be constructed a public sanitary sewer or sewers through any public highway or highways within the territorial limits of its jurisdiction, for which no assessment of benefits and damages has been made, such municipality, commission or authority may establish service charges payable in equal annual installments for a period of not more than five years for the payment for the use of such sewer, until such time as the fair and proportionate cost of installing such sewer has been paid by the property owner or owners whose property has been benefited by the construction and use of such sewer. This section shall apply only to public sewers constructed otherwise than in accordance with this chapter and after October 1, 1950.