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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° 15’22", long 71°
15’38", Norfolk County, Hydrologic Unit 01090001, on right
bank 0.3 mi downstream from highway bridge, 0.8 mi downstream from
Noanet Brook, and 1.3 mi northeast of intersection of Centre and
Walpole Streets in Dover.
DRAINAGE AREA--183 mi2.
PERIOD OF RECORD--Discharge: October 1937 to current year. Prior to October 1977, published as "at Charles River Village."
Water-quality records: Water years 1975–95 (National stream-quality accounting network station).
REVISED RECORDS--WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 89.76 ft above sea level.
REMARKS-- Flow affected by diversions to and from basin for municipal supplies.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Division of Planning and Engineering.
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Value Feb 22