USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

01172003 CONNECTICUT RIVER BELOW POWER DAM AT HOLYOKE,MA

Hampden County, Massachusetts

Hydrologic Unit Code 010802010702

Latitude 42°12'36", Longitude 72°35'44" NAD27

Drainage area 8,309.0 square miles

Contributing drainage area 8,309.0 square miles

Gage datum 55.0 feet above NAVD88

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Connecticut Water Data Support Team
Page Last Modified: 2025-09-15 08:16:35 EDT
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