Freshwater Impoundments

What are impoundments?

Managed freshwater impoundments are tidal freshwater marshes that have been diked and "impounded" in order to manipulate the vegetation through water control. The impoundments at Savannah National Wildlife Refuge were originally used for growing rice during the 18th and 19th centuries.


How are they managed?

A regimen of flooding and draining of the impoundments provides feeding, roosting, and nesting habitat for waterfowl, shorebirds, wading birds, and other wildlife.


Through water level control, prescribed burning, and targeted mowing, the US Fish and Wildlife Service promotes desirable wetland habitat.



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