When the public good or convenience of the inhabitants requires a highway to be laid out, altered, reclassified, or discontinued on, or intersecting the line between two towns, or a bridge across a stream between two towns to be built, persons who are either voters or landowners, and whose number is at least five percent of the voters, of the towns, may petition, in writing, the selectmen of either town to lay out, alter, reclassify, or discontinue the highway, or build the bridge. The selectmen presented with the petition shall notify the selectmen of the other town. The two boards shall establish a time for hearing, and shall give notice of it. (Added 1985, No. 269 (Adj. Sess.), § 1.)