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    ALL DATA ARE AT LOCAL TIME



    USGS 01401750 Millstone River at Griggstown NJ

    PROVISIONAL DATA SUBJECT TO REVISION

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    Somerset County Flood Warning Stage for this gage is 9.5 feet. Somerset County Flood Alarm Stage for this gage is 10.0 feet. Griggstown causeway will flood around 10 feet.

     
    gage photoLOCATION. --Lat 40°26'24", long 74°37'03" referenced to North American Datum of 1983, Montgomery Township, Somerset County, NJ, Hydrologic Unit 02030105, on left bank, 300 ft downstream from bridge at Griggstown, 200 ft downstream from Simonson Brook, and 300 ft downstream from Griggstown Causeway.
    DRAINAGE AREA. --229 mi2.
    PERIOD OF RECORD. --Water years 1938, 1960-61, 1971, 1997, 1999 to current year.
    GAGE. --Water-stage recorder. Datum of gage is 26.52 ft above NGVD of 1929. Diurnal fluctuations in gage height and water temperature possibly due to flow pattern in sewage effluent that enter the river upstream of gage.
    EXTREMES FOR PERIOD OF RECORD. --Maximum gage height, 23.2 ft, Sep 16, 1999.
    COOPERATION. --Funding for this gage is provided by Somerset County New Jersey and the U.S. Geological Survey.

    Boating Safety Tips

    This station managed by the New Jersey Water Science Center.

    Available Parameters Available Period
    All 2 Available Parameters for this site
      
    00065 Gage height 2008-11-14  2014-09-02
    00010 Temperature, water 2014-05-05  2014-09-02

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    Summary of all available data for this site
    Instantaneous-data availability statement


    Gage height, feet

    Most recent instantaneous value: 2.83   09-02-2014  13:45 EDT
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