It shall be the duty of the owner of any premises within the limits of the city to keep the sidewalk in front of or adjoining his premises clean and safe for pedestrians and with all possible dispatch to remove snow, ice and slush and other impediments to safe and convenient foot travel and to prevent the continuance or accumulation of the same upon such sidewalk, and in no case in the business district of the city shall the snow, ice and slush or other such material removed from such sidewalk be dumped, placed or deposited in the adjoining streets or avenues within two feet (2') of the curb line. Sidewalks, in all cases, must be freed of the night's accumulation of snow, ice, slush, mud or other like impediments within twenty four (24) hours of such accumulation. (Ord. 97, 8-5-1910)