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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°23’26", long
72°03’39", Worcester County, Hydrologic Unit 01080204, on
left bank, below diversion dam at Ware River Intake Works, 2.7 mi
downstream from Burnshirt River, 3 mi southeast of Barre, and at mile
DRAINAGE AREA--96.3 mi2.
PERIOD OF RECORD-- January 1928 to current year. Prior to October 1977, published as Ware River at Coldbrook.
GAGE--Data Collection Platform with telephone telemeter. Elevation of gage is 630 ft above National Geodetic Vertical Datum of 1929, from topographic map.
REMARKS--Figures of discharge do not include diversions by the MWRA during the period Oct. 15 to June 14 of each year; diversions began in March 1931. Flow regulated at times by Barre Falls Reservoir 4.3 mi upstream since 1958 for emergency flood-control purposes as authorized by U.S. Army Corps of Engineers. Diversion at times since 1955 from 6.5 mi2 upstream for municipal supply of Fitchburg. Computations of daily discharge are made in cooperation with Department of Conservation and Recreation, Division of Water-Supply Protection, and Massachusetts Water Resources Authority, which collects gage-height and venturi-meter records.
This gage is monitored in cooperation with the Massachusetts Department of Conservation and Recreation, Division of Water Supply Protection, Office of Watershed Management, with funding from the Massachusetts Water Resources Authority .
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Value Jul 23