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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 11.5 ft.
The water temperature data for this station are temporary and will only be displayed for 120 days. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.
LOCATION.--Lat 40°31'47", long 74°35'18" referenced to North American Datum of 1983, Manville Borough, Somerset County, NJ, Hydrologic Unit 02030105, at downstream center pier on bridge on Wilhouski Street (Manville Causeway) over bypass channel at Weston, in Manville, 0.8 mi south of Alma White College, 1.5 mi upstream of confluence with Raritan River, and 1.9 mi north of Millstone. Station is approximately 1.5 mi upstream of confluence with Raritan River.
DRAINAGE AREA.--271 mi2.
PERIOD OF RECORD.--Water years 1997, 1999 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 21.9 ft above NGVD of 1929.