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<br />~ <br />~ <br />f <br />f <br />I <br />~ <br />I <br />I <br /> <br />~ <br />l <br />I <br />, <br /> <br />~ <br /> <br />I <br />I <br /> <br />Guide For Approximate Zone A Areas <br /> <br />Floodplain Management <br /> <br />If the grade between the actual building sites and the <br />approximate Zone A area of the proposed subdivision is <br />relatively gradual, as shown in Figure 7, "Proposed 6.7-Acre <br />SUbdivision," the floodplain could extend beyond what is shown <br />on the Flood Insurance Rate Map. It is very likely that <br />flooding could affect the building sites. In this case, an <br />analysis should be conducted to determine the location of the <br />100-year floodplain and the BFE. <br /> <br /> <br />280 <br /> <br />275 <br /> <br />Figure 7 - Proposed 6.7-Acre Subdivision <br /> <br />For developments that exceed the thresholds identified in NFIP <br />regulations Subparagraph 6D.3(b) (3), BFEs must be either <br />obtained from other sources or developed using detailed <br />methodologies comparable to those contained in a Flood <br />Insurance Study. Section V describes some of the detailed <br />methodologies available that can be used to develop BFE data <br />when none are available from the sources listed in Section IV. <br /> <br />.l <br />~ <br />I <br /> <br />If the size of the new SUbdivision or other proposed <br />development falls below the thresholds specified in NFIP <br />regulations Subparagraph 60.3(b) (3) and no BFE data are <br />available from the sources listed in Section IV, the community <br />must still apply, at a minimum, the requirements of <br />Subparagraph 60.3 (a) (3) to proposed structures or Subparagraph <br />60.3 (a) (4) to subdivisions and other developments within <br />approximate Zone A areas. These paragraphs require that <br />permit officials: <br /> <br />I <br />t <br />I <br />I <br />I <br />, <br /> <br />1II-5 <br />