Whenever assessments of benefits for any extension of water mains have been lawfully made by any town and such extension has been completed and certificates of lien have been signed by the duly constituted authorities, describing the premises upon which any such lien is claimed and stating the amount claimed as a lien thereon, and have been lodged with the town clerk, such assessments of benefits shall be and remain a lien upon the land upon which the same have been made, and no such town shall be required to lodge for record any further certificate of any such lien. Such liens may be foreclosed in the manner provided by law for the foreclosure of tax liens.