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A. Any new or replacement travel trailer or travel vehicle shall be allowed in • the Floodway or Flood Fringe Districts provided the trailer or vehicle and its contents are placed on fill above the Regulatory Flood Protection Elevation and proper elevated road access to the site exists in accordance with this code. No fill placed in the floodway to meet the requirements of this Section shall increase flood stages of the 100 -year or regional flood. B. All new or replacement travel trailers or travel vehicles not meeting the criteria of Paragraph A. above may, as an alternative, be allowed as a Special Use if in accordance with the following provisions and the provisions this code. The applicant shall submit an emergency plan for the safe evacuation of all vehicles and people during the 100 -year flood. The plan shall be prepared by a registered engineer or other qualified individual and shall demonstrate that adequate time and personnel exist to carry out the evacuation. All attendant sewage and water facilities for new or replacement travel trailers or other recreational vehicles shall be protected or constructed so as to not be impaired or contaminated during times of flooding in accordance with this code. 331.32 Non -Conforming Uses. A structure or the use of a structure or premises which was lawful before the passage or amendment of this Code but which shall not be in conformity with the provisions of this Chapter may be continued subject to the following conditions: • Subd. 1. Increase. No such use shall be expanded, changed, enlarged, or altered in a way which increases its nonconformity. Subd. 2. Alteration Protection. Any alteration or addition to a nonconforming structure or nonconforming use which would result in increasing the flood damage potential of that structure or use shall be protected to the Regulatory Flood Protection Elevation in accordance with any of the elevation on fill or flood proofing techniques (i.e., FP -1 through FP -4 flood proofing classifications) allowable in the State Building Code, except as further restricted in Subdivision 3. Subd. 3. Restrictions on Alterations. The cost of any structural alterations or additions to any nonconforming structure over the life of the structure shall not exceed 50 percent of the market value of the structure unless the conditions of this Section are satisfied. The cost of all structural alterations and additions constructed since the adoption of the City's initial flood plain controls shall be calculated into today's current cost which shall include all costs such as construction materials and a reasonable cost placed on all manpower or labor. If the current cost of all previous and proposed alterations and additions exceeds 50 percent of the current market value of the structure, then the structure shall meet the standards of this code for new structures depending upon whether the structure is in the Floodway or Flood Fringe, respectively. Subd. 4. Discontinued Use. If any nonconforming use is discontinued for twelve (12) • consecutive months, any future use of the building premises shall comply with this Chapter. The assessor shall notify the City Administrator in writing of instances of nonconforming uses which have been discontinued for a period of twelve (12) months. Ordinance 331 Page 20