§ 152.099 GRADING PLAN.
   Grading plan shall show contour lines at five-foot intervals where average slopes exceed 15% and at two-foot intervals where the average slope is less than 15%. Elevations are to be based on sea level datum (USGS), if available. Datum for contours shall be indicated on the map.
(Ord. O-28-2021, passed 11-16-2021)