Dam Removals Are Bringing Fish Back Across the Northeastern United States

Tens of thousands of low-head dams built from the 1600s onward across the US are being removed, restoring free-flowing rivers that allow migratory fish species to travel upstream, mussels to reproduce via fish hosts, and native aquatic habitat to recover from the lake-like conditions dams create.

The article describes the problem dams cause and the benefits of removal; it does not quantify how many dams have been removed to date or their cumulative restoration impact.