04-26-2006 Additions - Laserfiche WebLink

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k. Placement of natural rock riprap, including associated grading of the shoreline and placement of a filter blanket, is permitted if the finished slope does not exceed three (3) feet horizontal to one foot vertical, the landward extent of the riprap is within ten (10) feet of the ordinary high water level, and the height of the riprap above the ordinary high water level does not exceed three (3) feet. C. Placement and Design of Roads, Driveways and Parking Areas: 1. Public and private roads and parking areas must be designed to take advantage of natural vegetation and topography to achieve maximum screening from view from public waters. Documentation must be provided by a qualified individual that all roads and parking areas are designed and constructed to minimize and control erosion to public waters consistent with the field office technical guides of the local soil and water conservation district, or other applicable technical materials. Roads, driveways, and parking areas must meet shoreland setbacks and must not be placed within bluff and shore impact zones, when other reasonable and feasible placement alternatives exist. If no alternatives exist, they may be placed within these areas, and must be designed to minimize adverse impacts. 3. Public and private watercraft access ramps, approach roads, and access - related parking areas may be placed within shore impact zones provided the vegetative screening and erosion control conditions of this sub -part are met. For private facilities, the grading and filling provisions of Section 9.4.B of this Ordinance must be met. D. Storm Water Management: 1. When possible, existing natural drainage ways, wetlands, and vegetated soil surfaces must be used to convey, store, filter, and retain storm water runoff before discharge to public waters. Development must be planned and conducted in a manner that will minimize the extent of disturbed areas, runoff velocities, erosion potential, and reduce and delay runoff volummes. Disturbed areas must be stabilized and protected as soon as possible in accordance with Best Management Practices. Facilities or methods shall be used to retain sediment on the site. 3. When development density, topographic features, and soil and vegetation conditions are not sufficient to adequately handle storm water runoff using 917 -8 - 2 1 -