<div class="chunk-title">Sec. 34-73. - Standards for streams without established base flood elevations and/or floodways.</div>
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               Located within the areas of special flood hazard established in<a href="" data-chunk-id="PTIICOOR_CH34FL_ARTIINGE_S34-8BAESARSPFLHA" class="section-link" data-product-id="14529"> section 34-8</a> are small streams where no base flood data has been provided or where no floodways
               have been identified. The following provisions apply within such areas:
               
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                  (1)
                  
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                  No encroachment, including fill, new construction, substantial improvements or new
                  developments, shall be permitted within 20 feet of each side from the top of bank
                  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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                  (2)
                  
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                  If subsection (1) of this section is satisfied and base flood elevation data is available
                  from other sources, all new construction and substantial improvements within such
                  areas shall comply with all applicable provisions of this article and shall be elevated
                  or floodproofed in accordance with<a href="" data-chunk-id="PTIICOOR_CH34FL_ARTIIAD_S34-37SAUTRE" class="section-link" data-product-id="14529"> section 34-37</a>(10). When base flood elevation data is not available from a federal, state or other
                  source, the lowest floor, including basement, shall be elevated at least two feet
                  above the highest adjacent grade.
                  
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               (Code 1993, Â§ 34-73; Ord. of 6-4-1991(1), art. 5, Â§ C)
               
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