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<br />VERSION 1.0 1/12/95 <br /> <br />LEVEL TWO: Building DDF <br /> <br />Building <br />Depth-Damage <br />Table <br /> <br />Default <br />Building DDF <br /> <br />BUILDING DEPTH-DAMAGE j=UNCTION (DDF) <br /> <br /> <br />There are five columns in the Building Depth-Damage Table. The <br />first column shows the range of flood depths considered, from -2 to 18 <br />feet. The next three columns contain damage estimates in percentages <br />of the building's replacement value: Defauit DDF, User-Entered DDF, <br />and Modified DDF (to account for the demolition damage threshold <br />percentage). The fifth column converts the Modified DDF from <br />percentages of damage into dollars of damage. <br /> <br />ORANGE Biocks (Default). The Default Building DDF estimates <br />shown are based on the building type selected earlier and on Federal <br />Insurance Administration (FIA) data. FIA data on hundreds of <br />thousands of flood damage claims are categorized into six classes of <br />structures. These FIA data are predominantly, but not entirely, for <br />residential buildings. <br /> <br />In conformance with the FIA depth-damage data, the depth-damage <br />table runs from -2 to 18 feet, with all depths relative to the Zero Flood <br />Depth Elevation of the building (i.e., the top of the first finished floor). <br />Damage data is included for depths below 0 feet because damage <br />occurs at these flood levels for buildings with basements. <br /> <br />The default depth-damage estimates have several limitations: <br /> <br />1. Only six classes of buildings are included. <br /> <br />2. No distinction is made between different types of <br />construction. For example, one-story wood frame and <br />masonry buildings are grouped in the same class. <br /> <br />3. No distinction is made for differences in construction <br />practices or age of structures. <br /> <br />8-3 <br />