§ 9.08.025 SIDEWALK OPENINGS REGULATED.
   It shall be unlawful for any person to construct or maintain any permanent opening in any sidewalk, unless the same is constructed and maintained in the manner required in this Subchapter.
   A.   Type of opening required. Every opening in any sidewalk shall be covered with metal trap doors, the sides of which shall not be less than four (4) feet from the outer edge of any curb, and no door shall have a width greater than five (5) feet. Metal guards shall be provided and maintained at each opening, each of which shall reach to the height of such doors when open and shall be constructed of wire mesh, the meshes of which shall not exceed three (3) inches in the greatest dimension. Every metal cover shall be flush with the surface when closed and the upper surface shall be roughened. It shall be capable of sustaining a load, at all points simultaneously, equal to four hundred (400) pounds for each superficial foot of the surface thereof.
   B.   Requirements for opening. It shall be unlawful for any person to open a door required herein covering any sidewalk opening, unless a metal guard, as required herein, is placed on each side of the opening except when merchandise is actually being conveyed from the opening and a person is stationed for the purpose of warning passers-by.
('65 Code, § 30-6) (Ord. No. 460 § 3)