The number of crest gates currently open at the Conowingo Dam can be viewed here.

Governor Wes Moore, Constellation Announce Historic Conowingo Dam Agreement

The agreement, valued at more than $340 million, clears the way for the re-licensing and continued operation of the Dam for an additional 50 years.

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Renewable Energy Environmental Responsibility Economic Development

For more than 90 years, the Conowingo Dam has been Maryland’s largest source of renewable energy.

News & Events

Oct 02, 2025

Governor Moore Announces Historic Conowingo Dam Agreement to Promote Landmark Chesapeake Bay Restoration Efforts and Supercharge $3.2 Billion Bay Economy

Mar 25, 2025

Constellation Temporarily Closes Portion of Hiking Trails Near Fisherman's Park to Help Prevent Spread of Avian Flu

Jul 20, 2023

Constellation Reopens Hiking Trails Near Fishermans Park After Temporary Closures Emplaced to Prevent the Spread of Avian Flu

Trails near Fisherman’s Park are now open after temporarily closing to help prevent the spread of Avian Flu.

Apr 04, 2023

Constellation Temporarily Closes Portion of Hiking Trails Near Fishermans Park to Help Prevent Spread of Avian Flu

Mar 19, 2021

FERC Renews Conowingo Dam's Operating License, Preserving Maryland's Largest Source of Renewable Energy

With a new 50-year operating license in hand, Constellation can now move forward with up to $700 million in planned investments to enhance aquatic life, water quality and environmental stewardship