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.

 

SURFACE-WATER RECORDS
LOCATION.--Lat 40°28'24", long 74°49'40" referenced to North American Datum of 1983, Raritan Township, Hunterdon County, NJ, Hydrologic Unit 02030105, on left bank 50 ft downstream from bridge on Everitts Road, 0.6 mi southwest of Reaville, 1.5 mi downstream from Third Neshanic River, and 2.2 mi upstream from Back Brook.
DRAINAGE AREA.--25.7 mi².
PERIOD OF RECORD.--Continuous-record discharge station June 1930 to current year.
REVISED RECORDS.--WSP 1552: 1933, 1934(M), 1936(M), 1938, 1940(M), 1942(M), 1945-46, 1951, 1952(M). WDR US-2011: 1971, 1972(M), 1973(M), 1979(M), 1989(M), 1992(M), 1994(M), 1996(M), 1997(M), 1999, 2004(M), 2006(M), 2007(M), 2008(M), 2010(M).
GAGE.--Water-stage recorder with telemetry. Concrete control since Sept. 26, 1935. Datum of gage is 109.46 ft above NGVD of 1929.
REMARKS.--Records good, except estimated discharges and discharges less than 2.0 ft³/s, which are fair. Occasional regulation possibly due to irrigation pumpage.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 9,020 ft³/s, Sep 16, 1999, gage height, 15.33 ft, from high-water mark in gage house; minimum discharge, 0.00 ft³/s, many days.

WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1957, 1962, 1979 to current year.
PERIOD OF DAILY RECORD.-- WATER TEMPERATURE: October 1997 to August 1998.
REMARKS.--Discrete water-quality data were collected as part of the New Jersey Ambient Surface-Water-Quality Monitoring Network.

Peak Flood Chart

National Weather Service flood stage for this gage is 6.5 ft.