(A)   Such vaults, rooms, structures or enclosures shall be firmly constructed so as to support the sidewalk or street over it or them, with the maximum load which the sidewalk or street will carry, with a margin of safety of 50% over this maximum load or weight.
   (B)   The proper officer of the city shall inspect all such enclosures, rooms or structures to see to the enforcement of the provisions of this section.
   (C)   (1)   The surface of the sidewalks over any such structure must be kept clean of snow and ice, and free from all dirt and obstructions of any kind, by the person holding the permit.
      (2)   Such person must keep the sidewalk over such structure in good repair.
(Prior Code, § 37-74)