The pavement, sidewalk, driveway or other surface shall be cut vertically along the lines forming the trench in such a manner as to not damage the adjoining pavement or hard surfacing. An undercut bevel at the rate of one inch (1") per foot of thickness will be provided at the proposed junction between the old and new surfaces. The portion to be removed shall be broken up in a manner that will not cause damage to the pavement outside the limits of the trench. However, any pavement damaged by operations outside the limits of the trench shall be replaced. All waste material resulting from the excavation shall be removed immediately from the site of the work. (Prior Code § 11-384)