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  • USGS 03049500 Allegheny River at Natrona, PA

    PROVISIONAL DATA SUBJECT TO REVISION

    Click to hidestation-specific text

    ATTENTION!!! Please be aware that the sharp rises and drops in the graphs displayed for some of the Allegheny River gages are being caused by hydroelectric power producers passing relatively large amounts of streamflow.

    STATION.--03049500 ALLEGHENY RIVER AT NATRONA, PA
    LOCATION.--Lat 40`36'55", long 79`43'07", Allegheny County, Hydrologic Unit 05010009, on right bank 520 ft upstream from dam at lock 4 at Natrona, 5.8 mi downstream from Kiskiminetas River, and at mile 24.3.
    DRAINAGE AREA.--11,410 mi2, approximately.
    PERIOD OF RECORD.--October 1938 to current year.
    GAGE.--Water-stage recorder and concrete dam control. Datum of gage is 736.36 ft above National Geodetic Vertical Datum of 1929. (U.S. Army Corps of Engineers bench mark). Prior to Apr. 14, 1940, nonrecording gage and Apr. 15, 1940 to Oct. 22, 1990, water-stage recorder at same site at datum 0.75 ft higher.
    REMARKS.--U.S. Army Corps of Engineers satellite telemeter at station.
    EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Mar. 18, 1936 reached a stage of 32.06 ft, discharge, 365,000 ft3/s, determined by U.S. Army Corps of Engineers.
    GAGE HEIGHTS OF IMPORTANCE.-
    Supplied by NWS: Action stage-17.2 ft; Flood stage-21 ft; Moderate flood stage-24 ft; Major flood stage-26 ft.
    COOPERATION.--Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection, the U.S. Army Corps of Engineers, Pittsburgh District and the U.S. Geological Survey through the National Streamflow Information Program and the Cooperative Water Program.
    This station managed by the PAWSC Pittsburgh Field Office.

    Available Parameters Available Period
    All 3 Available Parameters for this site
      
    00065 Gage height 2014-04-21  2014-08-20
    00060 Discharge 2007-10-01  2014-08-20
    00045 Precipitation 2014-04-21  2014-08-20

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


    Gage height, feet

    Most recent instantaneous value: 11.70   08-20-2014  00:15 EDT
    Graph of  Gage height, feet

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    Discharge, cubic feet per second

    Most recent instantaneous value: 13,800   08-20-2014  00:15 EDT
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    Daily discharge, cubic feet per second -- statistics for Aug 20 based on 75 years of record more
    Min
    (1962)
    25th
    percen-
    tile
    Median Mean 75th
    percen-
    tile
    Most Recent
    Instantaneous
    Value Aug 20
    Max
    (1994)
    1380 3200 4750 6480 7530 13800 36900


    Precipitation, total, inches

    Most recent instantaneous value: 0.00   08-20-2014  00:15 EDT
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