U.S. Flood Maps Based On Decades-Old Data

<p>According to a recent National Research Council report, maps of flood danger in the United States are based on data that are decades old. Many are calling for an update.</p>
February 5, 2007, 8am PST | Nate Berg
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"Maps being used to calculate flood danger in the United States rely on data that are decades out of date, according to a report that calls for a new national program to remap land levels."

"The most immediate need is for the Federal Emergency Management Agency's flood-mapping program. Those maps are used by mortgage companies and FEMA's National Flood Insurance Program to determine whether property owners should be required to purchase flood insurance."

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Published on Friday, February 2, 2007 in The Boston Globe
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