The prima facie speed limit on the following portion of Sunset Hills Boulevard is hereby declared to be as follows:
(a) From Olsen Road to Erbes Road, fifty (50) miles per hour; and
(b) From Erbes Road to its easterly terminus, forty (40) miles per hour.
(§ II, Ord. 544-NS, eff. October 2, 1975, as amended by § I, Ord. 1281-NS, eff. April 30, 1997, and Ord. 1364-NS, eff. October 12, 2000)