7-1-1: OBSTRUCTIONS:
It is unlawful for any person to cast, place or deposit upon any street or sidewalk:
   A.   Any broken ware, glass, rubbish, refuse matter, ice, water, mud, garbage, ashes, tin cans or other like substances.
   B.   Any vehicles, lumber, wood, boxes, fences or fencing, building materials, dead trees, tree stumps, merchandise or any article or thing which would obstruct the street or sidewalk or any part thereof, or the free use and enjoyment thereof, or the free passage over or upon the same, without the express permission of the city council, and then only in accordance with the strict terms of such permission. (1990 Code § 12.04.010)