(A) The grades of streets shall not be less than .5% nor exceed the following:
(1) Major streets, designated as such on the transportation plan: 5% unless prevented by topography;
(2) Collector, minor and local streets, service drives and alleys: 10%;
(3) Pedestrian ways or crosswalks: 20% unless steps of an acceptable design are to be constructed.
(B) All changes in street grades above 1% shall be connected by vertical curves of a minimum length equal to 30 times the algebraic difference in the rate of grade for division (A) of this section and one-half of the minimum for all other streets.
(C) The radii of curvature on the centerline shall not be less than the following:
(1) Major and collector streets; 350 feet;
(2) Local streets, minor streets, service drives and alleys; 150 feet.
(‘82 Code, § 16.24.060) (Ord. 649, passed - -72)