Whenever any map referred to in Section 17.28.060, whether adopted before or after July 13, 1961, shows any lot or area within any particular zone, such zone shall extend to the center of every adjoining road or highway, provided that while such road or highway remains a public highway or a road used in a similar manner it may be so used.
(Ord. 178 § 301, 1961; Ord. 545 §§ 1, 2 1988)