1121.05 GRADING PLAN.
   Grading Plan shall show contour lines at five (5) foot intervals where average slopes exceed fifteen (15) percent and at two (2) foot intervals where the average slope is less than fifteen (15) percent. Elevations are to be based on sea level datum (USGS), if available. Datum for contours shall be indicated on the map.
(Ord. 67-11. Passed 1-24-67.)