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USGS 01172010 CONNECTICUT R AT I-391 BRIDGE AT HOLYOKE, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION

LOCATION--Lat 42o11'26", long 72o36'32", Hampden County, Hydrologic Unit 01080201, on right bank, 300 ft upstream from the Interstate 391 bridge behind the flood barrier near water access through wall at flood barrier mile 85.
DRAINAGE AREA--8,332 mi2.
PERIOD OF RECORD--October 2002 to current year.
GAGE--Data Collection Platform with satellite and telephone telemeters at station.
REMARKS--Flow regulated by power plants, by First Connecticut and Second Connecticut Lakes, Lake Francis, Moore, and Comerford Reservoir, and other reservoirs, combined usable capacity, about 47 billion cubic feet.
COOPERATION--Holyoke Gas and Electric Co.

Photo of Connecticut River at gage location

Boating safety tips
This station managed by the East Hartford CT Field Office.

Available Parameters Available Period
  
2002-11-02  2025-06-23
2007-10-01  2025-06-23







 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 12500 06-23-2025   09:30 EDT
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Daily discharge, cubic feet per second -- statistics for Jun 23 based on 22 water years of record more
Min
(2018)
25th
percen-
tile
Median Mean Most Recent
Instantaneous
Value Jun 23
75th
percen-
tile
Max
(2015)
3080 4660 8360 10200 12500 15800 23300


Gage height, feet

Most recent instantaneous value: 8.35 06-23-2025   09:30 EDT
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