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o o The property is located at the eastern terminus of Park Avenue. The subject parcel contains an existing dwelling and septic system. Properties to the north, south, and west are zoned UTF and consist of small acreage homesites. The EFU zoned portion of the subject parcel extends east to border the Pudding River and Clackamas County. The applicant proposes to construct an accessory building on property in the identified floodplain. The Marion County Building Department stated that Building Permits are required prior to construction. Ail other contacted agencies either failed to stated no objection to the proposal at the time was written. comment or this report The purpose of the Floodplain Overlay Zone is to promote public health, safety and general welfare and to minimize public and private losses due to flood conditions. The standards and related uses in the overlay zone are listed in Section 178.060 of the Marion County Zoning Ordinance. In order to comply with these standards, the structure must have the lowest floor elevated two feet above the base flood elevation MSL (mean sea level). Flood Insurance Rate Map # 410154 0100 C indicates that the elevation of the 100 year floodplain is approximately 104 feet above mean sea level (MSL) at the subject parcel. Additionally, Marion County recently used information supplied by the Army Corps of Engineers, aerial photographs of the 1996 flooding, as well as updated terrain and hydrologic models in order to create more accurate floodplain boundaries. As a result of this additional data, the new delineations indicate that the site is situated within the Marion County 100 year and 500 year floodplain. The applicant obtained information from the City of Aurora which indicates that the existing ground elevation in the area of the proposed pole building is 108 feet above MSL. Based on this information, it can be concluded that the structure will be physically located above the 100 year base flood elevation. Craig O. Luedeman Director-Planning Division Community Development Department Date: 2-10-99 If you have any questions please contact David Epling at 588-5038.