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ICE EFFECTS ON STREAMFLOW
The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.
LOCATION--Lat 42° 04'45", long 73° 04'24",
Berkshire County, Hydrologic Unit 01080207, on left bank 5 ft
downstream from highway bridge, 0.3 mi downstream from Clam River, 1 mi
south of New Boston, and at mile 65.0.
DRAINAGE AREA--91.7 mi2.
PERIOD OF RECORD--May 1913 to current year. Prior to October 1948, published as Farmington River near New Boston.
REVISED RECORDS--WSP 641: 1924(M). WSP 781: 1928(M). WSP 1231: 1914. WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 758.21 ft above sea level.
REMARKS--Flow regulated by Otis Reservoir 7.0 mi upstream on Fall River. High flow slightly affected by retarding reservoirs since 1966.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resource.
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