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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 41° 37'48", long 71° 28'44",
Washington County, Hydrologic Unit 01090004, on right bank at
downstream side of private bridge, 250 ft downstream of Fry Brook, 600
ft downstream of State Rt. 402, 0.75 mi east of Frenchtown, and 3.25 mi
upstream from mouth.
DRAINAGE AREA--16.0 mi2.
PERIOD OF RECORD--Discharge: April 2007 to current year.
GAGE--Data Collection Platform with telephone telemeter. Datum of gage is 24.13 ft above NAVD 1988, estimated from topographic map. Datum of gage previously reported as 25 ft above NGVD 1929, estimated from topographic map.
REMARKS--Flow affected by upstream water withdrawals.
COOPERATION BY--Rhode Island Department of Environmental Management.
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Value May 25