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openings shall be no more than one (1) foot above final grade; <br /> and, <br /> iv. The foundation and supporting members shall be anchored, <br /> designed, and certified by a licensed engineer, to minimize <br /> exposure to hydrodynamic forces such as current, waves, ice, <br /> and floating debris. <br /> 1) All structural components below the flood <br /> protection elevation shall be constructed of <br /> materials resistant to flood damage; <br /> 2) Water and sewer pipes, electrical and telephone <br /> lines, submersible pumps, and other service <br /> facilities may be located below the flood protection <br /> elevation provided they are waterproofed; <br /> 3) The area below the flood protection elevation shall <br /> be used solely for parking or building access and <br /> not later modified or occupied as habitable space; <br /> or, <br /> 4) All design methods intended to comply with these <br /> requirements shall be certified by a licensed <br /> professional engineer or architect. <br /> c. An existing building may have a crawlspace located below the flood <br /> protection elevation provided that the following conditions are met: <br /> i. The building must be designed and certified by a licensed <br /> engineer and be adequately anchored to resist flotation, <br /> collapse, and lateral movement of the structure resulting from <br />