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During winter months, cold and ice may result in inaccurate real-time gage height and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
National Weather Service flood stage for this gage is 6.0 ft.
Forecasts for this gage are issued by the National
Weather Service routinely year-round.
LOCATION.--Lat 40°43'34", long 74°23'23" referenced to North American Datum of 1983, Chatham Borough, Morris County, NJ, Hydrologic Unit 02030103, on left bank 150 ft downstream from bridge on Stanley Avenue in Chatham, 1.5 mi northwest of Summit Borough Hall, and 3.0 mi upstream from Canoe Brook.
DRAINAGE AREA.--100 mi2.
PERIOD OF RECORD.--February 1903 to December 1911, October 1937 to current year. Monthly discharge only for some periods, published in WSP 1302.
GAGE.--Water-stage recorder. Concrete control since Sept. 19, 1938. Datum of gage is 193.51 ft above NGVD of 1929. Prior to Dec 31, 1911, nonrecording gage at bridge 150 ft upstream at different datum.
COOPERATION.--Funding for this gage is provided by the U.S. Army Corps of Engineers and the U.S. Geological Survey's National Streamflow Information Program (NSIP). ( Link to USGS NSIP website )
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Value Jan 31