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10. The Lower Hudson River

Troy Dam
The Federal Dam across the Hudson River at Troy, New York

Troy Dam is the demarcation between the upper and lower Hudson River. Below the dam, the river's elevation drops only a few feet as it flows 153 miles to New York City.

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  • Page applies to Hudson River region
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  • Contact for this Page:
  • The Hudson River Estuary Program
    NYS DEC
    21 S Putt Corners Rd
    New Paltz, New York 12561
    845-256-3016