It shall be unlawful to erect any roadside advertising within a distance of 400 feet of any highway intersection of class I and II highways or railroad grade crossings thereon when said advertising obstructs the view of said intersections and crossings, rendering the approach to same by vehicular traffic hazardous.
RSA 236:54
RSA 249:49. 1955, 135:1, par. V. 1981, 87:1, eff. April 20, 1981.