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7 REVISOR 6120.3300 <br /> General development 75 50 30 <br /> Remote river segments 200 200 30 <br /> Forested and transition river segments 150 150 30 <br /> Agricultural, urban, and tributary river <br /> segments 100 50 30 <br /> (2) Exceptions to structure setback standards in subitem (1). Where <br /> structures exist on the adjoining lots on both sides of a proposed building site, structure <br /> setbacks may be altered without a variance to conform to the adjoining setbacks provided <br /> the proposed building site is not located in a shore impact zone or in a bluff impact zone. <br /> B. High water elevations. In addition to the setback requirements of item A, <br /> local shoreland controls must regulate placement of structures in relation to high water <br /> elevation. Where state-approved, local flood plain management controls exist, structures <br /> must be placed at an elevation consistent with the controls. Where these controls do <br /> not exist, the elevation to which the lowest floor, including basement, is placed or <br /> flood-proofed must be determined as follows: � <br /> (1) For lakes, by placing the lowest floor at a level at least three feet above <br /> - the highest known water level, or three feet above the ordinary high water level,whichever <br /> is higher. In instances where lakes have a history of extreme water level fluctuations or <br /> have no outlet capable of keeping the lake level at or below a level three feet above the <br /> ordinary high water level, local controls may require structures to be placed higher. <br /> (2) For rivers and streams, by placing the lowest floor at least three feet <br /> above the flood of record, if data are available. If data are not available, by placing the <br /> lowest floor at least three feet above the ordinary high water level, or by conducting a <br /> technical evaluation to determine effects of proposed construction upon flood stages and <br /> � flood flows and to establish the flood protection elevation. Under all three approaches, <br /> technical evaluations must be done consistent with parts 6120.5000 to 6120.6200 <br /> governing the management of flood plain areas. If more than one approach is used, the <br /> highest flood protection elevation determined must be used for placing structures and <br /> other facilities. <br /> (3) Water-oriented accessory structures may have the lowest floor placed <br /> lower than the elevation determined in this subpart if the structure is constructed of <br /> flood-resistant materials to the elevation, electrical and mechanical equipment is placed <br /> above the elevation and, if long duration flooding is anticipated, the structure is built to <br /> withstand ice action and wind-driven waves and debris. <br /> C. Bluff impact zones. Structures and accessory facilities, except stairways and <br /> landings, must not be placed within bluff impact zones. <br /> Copyright�2009 by the Revisor of Statutes,State of Minnesota. All Rights Reserved. <br />