Levees, Floodwalls Require Round-the-Clock Watch
All along the swollen Mississippi River, hundreds of thousands of lives depend on a small army of engineers, deputies and even prison inmates keeping round-the-clock watch at the many floodwalls and earthen levees holding the water back. (May 16)
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Levees, Floodwalls Require Round-the-Clock Watch
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on May 16, 2011. Filed under