Except when a special hazard exists that requires a lower speed limit in order to avoid colliding with any person, vehicle, conveyance, or other object on or entering a street, and except as otherwise provided herein, the driving of a motor vehicle on any street within the city at any speed in excess of thirty miles per hour shall be prima facie evidence that the speed is not reasonable and prudent and is unlawful.
(Ordinance 2003-01-20-02, sec. II, adopted 1/20/03)