Hydropower Dams Hamper Migrating Fish Despite Passage Features, Study Finds

The Conowingo Dam, a large hydroelectric dam in the Lower Susquehanna River, Maryland. The dam is one of the largest non-federal hydroelectric dams in the US. Photo source: ©© Stinkenrobotter


Major hydropower dams in the northeastern United States, constructed with state-of-the-art features designed to allow migratory fish to pass through them on their way to spawn upstream, have failed in that regard, raising questions that should be addressed as more dams are planned worldwide…

Read Full Article, University Of Arizona

Original Study: Fish and hydropower on the U.S. Atlantic coast: failed fisheries policies from half-way technologies, Conservation Letters

Virginia Quake Raises More Questions about U.S. East Coast Infrastructure, Scientific American (08-24-2011)
The U.S. East Coast endures far fewer temblors than the west coast, but damage to dams on the “right coast” could be significant given the older architecture…

Problems With Big Dams, International Rivers

Conowingo Dam options revealed this summer, Capital Gazette
By this summer, officials could have options for dealing with potentially harmful sediment trapped behind the Conowingo Dam beyond the north end of the Chesapeake Bay. Scientists and government officials are studying what to do with the dam, which is running out of storage space for the sediment that washes down the Susquehanna River.