§ 17.28.130. Street grades.
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Grades of all streets shall be consistent with adequate surface-drainage requirements and the approved grading plan of the proposed subdivision if one is required. The maximum permitted grade is six percent;provided, however, that when topography makes a six percent grade impractical, the city council, after the approval of the city engineer, may permit a grade not to exceed ten percent. The city engineer shall determine the minimum grade authorized.
(Ord. 360B §9, 1979: Ord. 324B §6-18, 1977)