(a) Vertical street profiles shall conform to the grades listed below. All deviation shall be approved by the consulting Engineer.
(b) (1) Arterial/main streets: maximum grade - 48%
(2) Collector and residential streets and alleys: maximum grade 6%:
(3) Intersection approaches: maximum grade - 4% (for at least 100ft)
(4) Rate of change of grade: maximum grade - 4%; and
(5) Minimum grade: 0.40% (Ord. 2000-0-02. Passed 1-24-00.)