USGS Water-Year Summary 2021
01125500 QUINEBAUG RIVER AT PUTNAM, CT
LOCATION - Lat 41°54'34.11", long 71°54'49.91" referenced to North American Datum of 1983, Windham County, CT, Hydrologic Unit 01100001, on right bank at Putnam, 0.15 mi downstream from Little River, 0.3 mi upstream from New York, New Haven and Hartford Railroad bridge, 2.8 mi downstream from French River, 3.0 mi downstream from West Thompson Dam, and 36 mi upstream from mouth.
DRAINAGE AREA - 328 mi².
PERIOD OF RECORD - Discharge: December 1929 to September 1969, October 1995 to current year. Monthly discharge only for October and November 1929, published in WSP 1301. Stage record only October 1974 to September 1995.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 216.76 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 1, 1958, at same site on left bank at same datum. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - The maximum peak flow of 48,000 ft³/s was obtained from rating curve extended above 2,500 ft³/s on basis of computation of flow over dam at gage heights 17.28 and 19.45 ft and slope-area measurement of peak flow. The maximum peak stage of 26.50 ft. was from flood marks.
PERIOD OF RECORD - Chemical analyses available for water years 1955, 1957-1960, 1962, 1970, 1972, January, 1999 to September, 2007.