About the project

The state of New York is working to remove hundreds of dams built on tributaries of the Hudson River estuary to improve habitat connectivity and reduce the risk of dam failure. The Dams and Sediment in the Hudson (DaSH) project brought together a collaborative team of scientists and stakeholders to better understand how sediment released by dam removals would affect the estuary and provide practical tools to regulators and practitioners. Along with this summary of dams and sediment supply, the project produced a series of factsheets and journal articles about their research on the amount and potential impacts of sediment trapped behind dams and the processes governing marsh growth in the estuary.

About this resource

This factsheet summarizes research findings from the Dams and Sediment in the Hudson project related to sediment trapped behind dams and sediment supply in the Hudson River estuary. Results show that despite the large number of dams in the watershed, dam removals will have minimal impact on sediment supply to the estuary.