(A) Locational requirements. Except in the case of a shopping center, planned as a unit, with off-street parking and loading space, either a public or private alley must be provided in a block where commercially zoned property abuts a major thoroughfare or a major street. Alleys in residential areas other than those zoned for multiple use will not be permitted except by special permission of the City Council.
(B) Widths. Alleys, where permitted by the City Council, must be at least 20 feet in width in residential areas and at least 30 feet wide in commercial areas, with adequate provisions for snow storage. Such snow storage locations must be approved by the City Council.
(C) Grades. All center line gradients in alleys must be at least 0.5 percent and must not exceed eight percent.
('72 Code, § 345:49) Penalty, see § 10.99