a) REQUIRED SPACES AND BERTHS
1) INSTITUTIONAL, COMMERCIAL, INDUSTRIAL, UTILITY, TRANSPORTATION USES - For all institutional, commercial, industrial and utility/transportation uses whose principal buildings have an aggregate floor area exceeding six-thousand (6,000) square feet, at least one (1) off-street loading space shall be provided. Where there is an aggregate of twenty-thousand (20,000) square feet or more, one (1) off-street berth shall be provided for the initial twenty-thousand (20,000) square feet plus one (1) additional berth for each sixty-thousand (60,000) square feet above twenty-thousand (20,000) square feet. For uses where a loading berth is required by this ordinance, but not practical for the specific use proposed, the owner/applicant may provide evidence to the Zoning Officer that a berth is not practical and additional loading spaces may be used to replace the required loading berth(s).
2) OFF-STREET LOADING BERTHS VERSUS OFF-STREET LOADING SPACES - For purposes of this Zoning Ordinance, off-street loading berths shall be distinguished from off-street loading spaces in that a berth shall have a platform or dock raised to the height of a truck bed whereas a space may off-load at ground level.
3) MAINTENANCE - All off-street loading spaces and berths shall be provided and maintained so long as the use exists which the facilities were designed to serve.
4) SPECIFICATIONS - Off-street loading facilities shall be designed to conform to the following specifications:
A. Each required berth shall be not less than twelve (12) feet in width, forty-five (45) feet in length and fourteen (14) feet in height, exclusive of drives and maneuvering space and shall be located entirely on the lot being served;
B. There shall be appropriate means of access to a street or alley as well as adequate maneuvering space;
C. The maximum width of driveways and sidewalk openings measured at the street lot line shall be thirty-five (35) feet, and the minimum width shall be twenty (20) feet; and
D. All accessory driveways and entrance ways shall be graded, surfaced and drained to the satisfaction of the City Engineer to the extent necessary to prevent nuisances of dust, erosion or excessive water flow across streets or adjoining property.