(A) Entrance width, as measured at the property line, shall be as follows:
(1) Residential, single-family: no minimum, 30 feet maximum;
(2) Residential, multi-family: 20 feet minimum, 30 feet maximum;
(3) Commercial: 20 feet minimum, 50 feet maximum; and
(4) Industrial: 24 feet minimum, 60 feet maximum.
(B) Necessary drainage structures for an entrance shall not be connected to an existing drainage structure unless the necessary junction boxes, manholes and catch basins are installed, as approved by the Engineering Department and the Storm Water Department.
(C) Entrance pipe shall extend at least 24 inches beyond the edge of the entrance. Entrance pipe size shall meet the approval of the City Engineer and the Director of Storm Water Management in accordance with § 91.054(A) of this chapter, but in no case shall the diameter be less than 12 inches.
(D) All entrance pipe shall be concrete, bituminous coated corrugated metal or HDPE and shall meet the approval of the City Engineer and the Director of Storm Water Management.
(E) Valley gutters constructed of concrete or bituminous material may be used in lieu of entrance pipe where such pipe cannot be placed. Prior approval of the City Engineer and the Director of Storm Water Management for use of such gutters is required.
(F) Where long lengths of pipe are used, catch basins or clean-out boxes shall be installed at approximate intervals of 50 feet based on pipe diameter of 12 inches. Special consideration may be given to placement of clean-out boxes at longer intervals for pipe with larger diameters. Clean-out boxes shall also be constructed at all angles in pipe alignment.
(G) When necessary, gratings and catch basins must be employed to intercept and prevent water flowing from the driveway over the sidewalks or roadway.
(H) The maximum grade for an entrance to a multi-family, commercial or industrial use shall be no greater than 10%. When an entrance grade at its intersection with the public street exceeds 3%, a leveling area shall be provided with grades no greater than 3% for a distance of 50 feet from the intersection with the street.
(I) When curbs are used along the roadway and sidewalks are used or contemplated, the gradient of the driveway shall fit the plane of the sidewalk and shall meet the requirements of the Americans with Disabilities Act, being 42 U.S.C. §§ 12101 et seq. If the difference in elevation of the gutter and the sidewalk is such that this is not practical, the sidewalk shall be lowered to provide a suitable gradient for the driveway and the surface of the sidewalk shall be sloped gently away from either side of the driveway. The flow line of the curb shall not be filled with any material. The curb can be modified only with permission from the City Engineer. All new or modified curb entrances shall meet the current standards of the city.
(Ord. 06-2012, passed 4-2-2012)