Tag: 100-year-flood
What, exactly, does “100-year-flood” mean?
November 20, 2012Over the past two decades, Lehigh Valley residents have seen what seems like more than their fair share of flooding. Allentown, Bethlehem, Easton, Hellertown, and other small and large municipalities across the region have been affected. What, exactly, defines a flood? According to the U.S. Geological Survey, “a flood is any relatively high streamflow overtopping…