When application for a permit is made to the commissioner of public works to construct, reconstruct or alter a driveway to provide ingress and egress from residential property, it shall be the duty of the commissioner of public works before issuing such permit to first determine the type of driveway proposed, its width and location, and if in his opinion it will not create a hazardous condition to grant such permit; however, final approval shall be contingent on the work being done in conformance with the following specifications:
(1) The driveway width measured at any point on the sidewalk shall not exceed twelve (12) feet for a single driveway or twenty (20) feet for a double or joint driveway. In the event the sidewalk is not separated from the curb by a utility strip or grass plot at any point along the frontage of the property, the point at which the above measurement is made will be determined by the commissioner of sanitation and public works in accord with good engineering practices.
(2) The width of the driveway apron measured at the curbline shall not exceed eighteen (18) feet for a single driveway or twenty-six (26) feet for a double driveway.
(3) The sidewalk portion of the driveway shall be of portland cement concrete with a minimum thickness of six (6) inches.
(4) The apron shall be either six (6) inches of rock base with a one and one-half (1½) inch bituminous surface or a six-inch thickness of portland cement concrete.
(Ord. No. 3511, § 3, 3-24-56; Ord. No. 174-2001, § 28, 7-5-01)