New York Consolidated Laws, Village Law - VIL § 6-618 Streets on boundary lines

Whenever a street is on a line between two villages, or between a village and a city or town, the highway or street commissioners of such adjoining municipalities shall, on or before the first day of May in each year, meet at a time and place to be determined by them, and divide such street.  The officers present at such meeting shall allot a part of the street to each municipality in such manner that the labor and expense of keeping such street in repair may be equal as nearly as practicable.  The officers making such division shall, within ten days thereafter, file in the office of the clerk of each municipality a certificate showing the part of such street allotted to each.