9.00 CONSTRUCTION STANDARDS
Monuments shall be installed at all street intersections, at all points of change in direction or curvature of streets, and at other points as shown on the definitive plan and where, in the opinion of the Planning Board, permanent monuments are necessary. Such monuments shall be a minimum of four (4) inches by four (4) inches by six (6) feet in size and shall be constructed of reinforced concrete or granite. No permanent monuments shall be installed until all construction which could destroy or disturb the monuments is completed. Permanent monuments shall be installed to extend below frost line and be of such construction as to resist easy removal. All monuments shall be installed under the direction of a Massachusetts registered land surveyor.