A. A grading, drainage and development plan shall be prepared by a registered engineer at a scale of one inch equals one hundred feet or larger, showing proposed rights-of-way, easements, walkways, parks, common areas, roadways, waterlines and reservoirs, sewer lines, manholes and treatment facilities, curbs and gutters, culverts, drains, stormwater detention and retention basins, swales, ditches and other drainage devices, spot top of curb elevations, high and low street points, drainage arrows, street plans, all drainage areas and acreages, all one-hundred-year storm flows (Q 100's) adjacent to and/or flowing onto the development and on-site at each surface flow junction, stormwater “pickup” and “takeoff” points designed to handle one-hundred-year flow on the surface, cross sections and high water elevations for all one-hundred-year flows. Spot elevations shall be given for all inverts, low points and flowing entry and exit points.
B. All minimum building setbacks shall be shown. No one-hundred-year flow line shall encroach upon any minimum setback line and all lowest habitable floor elevations shall be at minimum, one foot above the one-hundred-year flood elevation. Certification by a registered engineer that such conditions will be maintained may be required by the city.
(Ord. 1179 § 3.3(B)(part), 1987)