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<br />SCRIPT-TASKC. DAMAGE SCENARIO <br />(You have 15 minutes to read the script.) <br /> <br />Slide Cl. Task C. Damage Scenario <br /> <br />The flood warning proved warranted. A 100-year flood has struck your community. <br />Along the (river or stream), water, mud, and debris are everywhere. <br />Debris blocks the passage of floodwaters through culverts and under bridges and areas <br />thought to be out of harm's way are flooded. Some bridges are out and at least one <br />flood control structure has failed (if there are flood control structures on the stream). <br />Many residences and commercial and industrial buildings are heavily damaged. <br />Several public buildings can no longer be used. Buildings constructed before <br />entered the National Flood Insurance Program in 19_ fared poorly. <br /> <br />The rest of this script presents information about the types of flooding and the areas <br />and buildings most vulnerable to flood damage. This is to help you decide how a large <br />flood would impact your community and where the damage will be located. <br /> <br />Slide C2. Rivers converging at Pittsburgh, Pennsylvania <br /> <br />Here is the confluence of the Allegheny and Monongahela rivers at downtown <br />Pittsburgh, Pennsylvania. They join here to form the Ohio River. It's hard to believe <br />looking at this peaceful scene that these rivers can become raging torrents. <br /> <br />Slide C3. Same scene with rivers flooding <br /> <br />Here is the same scene with the rivers on the rampage. Over 22,000 communities in the <br />United States are subject to flooding from rivers and streams. Year in and year out, <br />floods cost the federal government more money in disaster assistance than all other <br />types of disasters put together. Flooding in the Mississippi River system in 1993 caused <br />almost $20 billion in damage. Riverine flooding is a serious problem throughout the <br />nation. <br /> <br />Slide C4. Chemung River flooding in Elmira, New York <br /> <br />Riverine flooding has many faces. This shows the Chemung River flooding in Elmira, <br />New York in 1972. River flooding is most often caused by too much rain falling over a <br />prolonged period of time. The stream channels cannot contain the runoff and overflow <br />their banks. Flooding occurs in areas adjacent to the streams. <br /> <br />Script-Task C <br />