(A) Whenever it is necessary to break through existing pavement for excavation purposes and where trenches are to be four feet or over in depth, the pavement in the base must be removed to at least six inches beyond the outer limits of the sub-grade that is to be disturbed in order to prevent settlement, and a six-inch shoulder of undisturbed material must be provided in each side of the excavated trench.
(B) The face of the remaining pavement must be approximately vertical. A power-driven concrete saw must be used so as to permit complete breakage of concrete pavement or base without rugged edges. Asphalt paving must be scored or otherwise cut in a straight line. No pile driver may be used in breaking up the pavement.
('72 Code, § 650:38) (Am. Ord. 1995-779, passed 4-24-95) Penalty, see § 10.99