<div class="chunk-title">Sec. 18-42. - Standards for floodplains without established base flood elevations.</div>
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               Within the special flood hazard areas established in article III, <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTIIIGEPR_S18-7BAESSPFLHAAR" class="section-link" data-product-id="14528">section 18-7</a>, where no base flood elevation (BFE) data has been provided, the following provisions
               shall apply:
               
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                  (1)
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                  No encroachments, including fill, new construction, substantial improvements or new
                  development shall be permitted within a distance of 20 feet each side from top of
                  bank or five times the width of the stream whichever is greater, unless certification
                  with supporting technical data by a registered professional engineer is provided demonstrating
                  that such encroachments shall not result in any increase in flood levels during the
                  occurrence of the base flood discharge.
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               <p class="incr1">
                  (2)
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                  The BFE used in determining the regulatory flood protection elevation shall be determined
                  based on the following criteria:
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               <p class="incr2">
                  (a)
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               <p class="content3">
                  When BFE data is available from other sources, all new construction and substantial
                  improvements within such areas shall also comply with all applicable provisions of
                  this chapter and shall be elevated or floodproofed in accordance with standards in
                  article V, <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTVPRFLHARE_S18-40GEST" class="section-link" data-product-id="14528">sections 18-40</a> and <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTVPRFLHARE_S18-41SPST" class="section-link" data-product-id="14528">18-41</a>.
                  </p>
               		
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                  (b)
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                  When floodway or non-encroachment data is available from a federal, state, or other
                  source, all new construction and substantial improvements within floodway and non-encroachment
                  areas shall also comply with the requirements of article V, <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTVPRFLHARE_S18-41SPST" class="section-link" data-product-id="14528">sections 18-41</a> and <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTVILESTPR_S18-44EFRILIUNEXFLDAPROR" class="section-link" data-product-id="14528">18-44</a>.
                  </p>
               		
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                  (c)
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                  All subdivision, manufactured home park and other development proposals shall provide
                  BFE data if development is greater than five acres or has more than 50 lots/manufactured
                  home sites. Such BFE data shall be adopted by reference in accordance with article
                  III, <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTIIIGEPR_S18-7BAESSPFLHAAR" class="section-link" data-product-id="14528">section 18-7</a> and utilized in implementing this chapter.
                  </p>
               		
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                  (d)
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                  When BFE data is not available from a federal, state, or other source as outlined
                  above, the reference level shall be elevated or floodproofed (nonresidential) to or
                  above the regulatory flood protection elevation, as defined in article II. All other
                  applicable provisions of article V, <a href="" data-chunk-id="CD_ORD_CH18FLDAPR_ARTVPRFLHARE_S18-41SPST" class="section-link" data-product-id="14528">section 18-41</a> shall also apply.
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            <p class="historynote0">
               (<a class="ordinance-link" href="" data-product-id="14528" data-ordinance-id="1094487">Res. of 7-6-2021</a>)
               </p></div>