§ 211-b. Abandonment of certain town highways in school districts. Notwithstanding any other provision of this chapter, and upon the request of either the county superintendent of highways or the town superintendent of highways, any town board may, by resolution duly adopted, declare any town highway or portion thereof in the town running through school district lands not necessary for ingress to or egress from any privately or publicly owned lands, and not necessary to connect existing town, county or state highways, to be abandoned and discontinued for public purposes. Such town shall at least thirty days prior to such abandonment cause to be filed and recorded in the office of the town clerk a written description of such highway or portion to be abandoned with a written statement attached thereto that such highway or portion thereof so described is proposed to be abandoned, and shall cause notices to be posted in at least three conspicuous places in such town of the time and place when such declaration of abandonment will be made, for the purpose of permitting any interested person to appear for or against the adoption of such resolution.