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LOCATION--Lat 42° 15’18", long 71°
09’53", Norfolk County, Hydrologic Unit 01090001, on right
bank 100 ft upstream from Washington Street Bridge at Dedham and 0.4 mi
downstream from point of diversion from Charles River.
PERIOD OF RECORD--Discharge: October 1931 to current year.
Water-quality records: Water years 1959, 1969–70.
REVISED RECORDS--WSP 1301: 1932(M).
GAGE--Data Collection Platform with satellite telemeter. Concrete control since June 10, 1960. Datum of gage is 0.03 ft below sea level. Dec. 9, 1931, to June 9, 1960, nonrecording gage at site 200 ft upstream at same datum.
REMARKS--Mother Brook is a man-made diversion from Charles River to Neponset River through Dedham and Hyde Park. Drainage area is not applicable. All flows are controlled by the DCR and may appear unusually low or high compared to surrounding streams during certain times of the year.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Division of Planning and Engineering.
ICE EFFECTS ON STREAMFLOW During winter, ice formation in streams can cause stage and corresponding discharge values to appear higher than expected during periods of no precipitation. Ice effects from partial ice cover or shore ice may be minor, where stage and discharge appear to increase at night and decrease to base-line conditions around midday for one or more days. Major ice effects from complete ice cover appear as constantly increasing stage and discharge over several days during prolonged cold periods. Stage and discharge values for streams experiencing minor ice effects will continue to be displayed on the web to enable the user to estimate the approximate base-line discharges. Note that this method of estimation should only be used when no runoff occurs. During periods of major ice effects, display of discharge data on the web will be temporarily discontinued to prevent misuse of erroneous discharge data. The discharge record will resume when it is determined that ice conditions are no longer present. Display of stage data during periods of minor and major ice effects will continue to be displayed on the web. Daily mean discharges will be estimated for all periods of ice-effected discharges.
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