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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°32’31", long
72°41’39", Franklin County, Hydrologic Unit 01080203, on
left bank at upstream side of Reeds Bridge just off Bardwell Road, 2.2
mi north of Conway, and 2.6 mi upstream from mouth.
DRAINAGE AREA--24.1 mi2.
PERIOD OF RECORD--Discharge: June 1966 to current year.
Water-quality records: Water years 1967–69, 1994–95, 2003–
REVISED RECORDS--WDR MA-NH-RI-VT-73-1: 1968–70(P), 1971(M), 1972(P). WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 459.45 ft above NAVD 1988, estimated from topographic map. Datum previously reported as 460 ft above NGVD 1929, estimated from topographic map. From June 1966 to June 2004, water-stage recorder at current site and datum. From June 2004 to July 2016, water-stage recorder at site 150 ft upstream at same datum.
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