Removing dams in distress

By the end of 2010, 925 dams had been removed from 47 states and the District, most of them since 1980. Pennsylvania has had 186 dismantled, by far the most of any state.

Removing dams in distress
Source: American Rivers. The Washington Post. Published on September 16, 2011, 8:06 p.m.
 
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