D E C banner
D E C banner


The New York State Department of Environmental Conservation has added a link to a translation service developed by Microsoft Inc., entitled Bing Translator, as a convenience to visitors to the DEC website who speak languages other than English.

Additional information can be found at DEC's Language Assistance Page.

12. The Hudson River Estuary

The lower Hudson is also influenced by salty seawater, which pushes upriver and mixes with freshwater from the watershed. Water bodies in which this happens are called estuaries. The leading edge of dilute seawater entering the Hudson is called the salt front. The front does not move upriver as far as the tides. Salty water often reaches Newburgh in summer, and in droughts it might go as far north as Poughkeepsie. But in spring, or after major rainstorms, fresh water runoff can push the salt front as far south as the Tappan Zee or even Manhattan.

Previous Slide
Next Slide

Diagram of Hudson River estuary
In the Hudson River estuary, salty ocean water mixes with fresh water.