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<br /> <br /> <br /> <br />~ <br /> <br /> <br />This house was elevated on columns to minimize damage from floods. The area <br />under the first floor is left open. <br /> <br />Small flood walls or levees can <br />be used to protect single buildings or <br />small groups of properties. They have <br />the advantage of protecting the whole <br />enclosed area rather than just the <br />building. These measures are also <br />useful for protecting buildings for <br />which other flood proofing measures <br />cannot be used because of the build- <br />ing's size or lack of structural <br />strength. However, small walls and <br />levees sometimes may be unattractive, <br />may require substantial maintenance, <br />are subject to failure and/or overtop- <br />ping or even may intensify flood <br />problems on adjacent property by <br />redirecting flood flows. <br /> <br />tions <br /> <br />Structures <br />which are <br /> <br />with walls <br />generally <br /> <br />and founda- <br />impermeable <br /> <br />to water can sometimes be made almost <br />completely watertight by permanently <br />blocking unused doorways and windows <br />and providing temporary covers which <br />can be installed over the remaining <br />openings during flooding. Seepage can <br />be reduced by applying a sealant to <br />walls and floors. If temporary closures <br />are to be useful, early flood warnings <br />must be available. <br /> <br />Any contents of a building which <br />are particularly vulnerable to water <br />damage should be rr.oved above the <br />expec ted flood level. Depending on the <br />potential depth of flooding, items such <br />as appliances may need to be tempor- <br />arily or permanently raised only a few <br />inches above floors or moved to a.R <br />upper story. Thi.s technique can also be <br /> <br />I <br /> <br />44 <br />