Agenda - Council - 08/10/2004 - Laserfiche WebLink

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for lakes, by placing the lowest floor at a level at least three feet above the highest known water level, or three feet above the ordinary high water level, whichever is higher; (b) for rivers and streams, by placing the lowest floor at least thr'ee feet above the flood of record, if data are available. If'data are not available, by placing the lowest floor at least three feet above the ordinary high water level, or by conducting a technical evaluation to determine effects of proposed construction upon flood stages and flood flows and to establish a flood protection elevation. Under all three approaches, technical evaluations must be done by a qualified' engineer or hydrologist consistent with parts 6120.5000 to 6120.6200 governing the management of flood plain areas. If more than one approach is used, the highest flood protection elevation determined must be used for placing structures and other facilities; and (c) water-oriented accessory structures may have the lowest floor placed lower than the elevation determined in this item if the structure is constructed of flood-resistant materials to the elevation, electrical and mechanical equipment is placed above the elevation and, if long duration flooding is anticipated, the structure is built to withstand ice action and wind-driven waves and debris. Water-oriented Accessory Structures. Each lot may have one water-oriented accessory structure not meeting the normal structure setback in this section if'this water-oriented accessory structure complies with the following provisions: the structure or facility must not exceed ten feet in height, exclusive of safety rails, and cannot occupy an area greater than 250 square feet. Detached decks must not exceed eight feet above grade at any point; (b) the setback of the structure or facility from the ordinary high water level must be at least ten feet; (c) the structure or facility must be treated to reduce visibility as viewed from public waters and adjacent shorelands by vegetation, topography, increased setbacks or color, assuming summer, leaf-on conditions; (d) the roof may be used as a deck with safety rails, but must not be enclosed or used as a storage area; (e) the structure or facility must not be designed or used for human habitation and must not contain water supply or sewage treatment facilities; and (f) as an alternative for general development and recreational development waterbodies, water-oriented accessory structures used solely for watercraft storage, and including storage of related boating and water-oriented sporting equipment, may occupy an area up to 400 square feet provided the' maximmn 15 -205-