A. 
All sidewalks shall be maintained in accordance with the following standards:
(1) 
Fallen snow shall be removed, creating a clear path as wide as the sidewalk, within 24 hours of the cessation of the snowfall.
(2) 
All sidewalks shall have grass and weed overgrowth removed to the edge of the walking surface in order to provide the maximum safe passageway for pedestrians and eliminate tripping hazards.
(3) 
Any section of sidewalk that is cracked, crumbling or substantially pitted, such that its surface presents an unreasonable tripping or falling hazard, shall be removed and replaced.
(4) 
Any section of sidewalk that is uplifted such that the edge of one section is elevated one inch or more over any point of the edge of an adjoining section of sidewalk shall be removed, repositioned or repaired in order to remove the tripping hazard.
(5) 
No person shall place anything on a sidewalk that would obstruct safe passage thereon unless such placement is temporary, unavoidable, the obstruction is clearly marked and visible at nighttime, and a safe path around the obstruction is provided not requiring travel into the roadway. Any substance or thing that through force of nature or man falls upon the surface of any sidewalk and presents a tripping or slipping hazard shall be removed as soon as practicable.
B. 
It shall not be a defense to a prosecution under this section that the defect in the sidewalk was caused by natural conditions or by reason of the condition existing at the time the premises was acquired. This section, being concerned with public safety, shall apply to all conditions that exist at the time of the effective date of this chapter. However, no action to prosecute for a violation of an existing defective condition of this section shall be brought earlier than six months after the effective date of this chapter.