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iv. The fill or structure shall not obstruct a drainage way leading to the <br /> floodplain; <br /> v. The grading around the excavation shall be such that the excavated area <br /> is accessible to the regulatory flood water; <br /> vi. The fill or structure shall be of a material deemed stable enough to <br /> remain firm and in place during periods of flooding and shall include <br /> provisions to protect adjacent property owners against any increased <br /> runoff or drainage resulting from its placement; and, <br /> vii. Plans depicting the areas to be excavated and filled shall be submitted <br /> prior to the actual start of construction or any site work; once site work <br /> is complete, but before the actual start of construction,the applicant <br /> shall provide to the Floodplain Administrator a certified survey of the <br /> excavation and fill sites demonstrating the fill and excavation comply <br /> with this article. <br /> (2) Specific Standards <br /> In all SFHAs, the following provisions are required: <br /> (A) In addition to the requirements of Section 21-12 .05 (1),all structures to be <br /> located in the SFHA shall be protected from flood damage below the FPG. <br /> This building protection requirement applies to the following situations: <br /> i. Construction or placement of any new structure having a floor area <br /> greater than 400 square feet; <br /> ii. Addition or improvement made to any existing structure where the <br /> cost of the addition or improvement equals or exceeds 50% of the <br /> value of the existing structure(excluding the value of the land); <br /> iii. Reconstruction or repairs made to a damaged structure where the costs <br /> of restoring the structure to its before damaged condition equals or <br /> exceeds 50%of the market value of the structure(excluding the value <br /> of the land) before damage occurred; <br /> iv. Installing a travel trailer or recreational vehicle on a site for more than <br /> 180 days; <br /> v. Installing a manufactured home on a new site or a new manufactured <br /> home on an existing site. This Article does not apply to returning the <br /> existing manufactured home to the same site it lawfully occupied <br /> before it was removed to avoid flood damage; <br />