It shall be the duty of the owner or occupant of any lot or piece of ground adjoining or abutting upon any street, avenue, or public way within the city wherein a sidewalk shall be located, either in front or at the side, or both, of such lot or adjoining ground, to cause to be removed from such sidewalk all snow and ice and to keep such sidewalks at all times free from the accumulations of snow and ice: provided, that where there shall be ice or compacted snow on any such sidewalk of such a character as to make it practically impossible to remove the same, the sprinkling of salt, ashes, sand, or other non-ice-forming chemicals on the accumulation of ice or snow in such a manner as to make such sidewalk reasonably safe for pedestrian travel shall be deemed a sufficient compliance with the provisions of this article until the ice or snow can be removed.

(Code 1967, 13-501)

It shall be the duty of the street superintendent to notify any person required by section 13-301 of this article to remove ice or snow to clean their sidewalks as required, or treat the same, within six hours after the abatement of a storm causing any accumulation of ice or snow: provided, that when the storm shall have occurred in the nighttime, the notice herein required may be given within six hours of sunrise.

(Code 1967, 13-302)

In case any person or persons fail to remove the snow and ice as required by section 13-301 of this article, then the street superintendent of the city is hereby authorized and directed to cause the snow and ice to be removed, keeping on account of the expense of so removing the same; and the street superintendent shall report such expense to the city clerk, who shall cause the amount of such expense to be levied against the lot or lot abutting upon the sidewalk from which the street superintendent has so removed such snow or ice, and the cost shall be collected in the same manner as is required for the building of sidewalks.

(Code 1967, 13-303)