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  • USGS 01570500 Susquehanna River at Harrisburg, PA

    PROVISIONAL DATA SUBJECT TO REVISION

    Click to hidestation-specific text

    Station gage imageSTATION.--01570500 SUSQUEHANNA RIVER AT HARRISBURG, PA
    WATER QUALITY DATA FROM THE WALNUT STREET PIER LOCATION IS NOT TRANSMITTED VIA SATELLITE TELEMETRY AND THEREFORE WILL ONLY BE UPDATED ABOUT EVERY 6 WEEKS.
    LOCATION.--Lat 40`15'17", long 76`53'11", Dauphin County, Hydrologic Unit 02050305, on east bank of City Island, 60 ft downstream from Market Street bridge in Harrisburg, 3,670 ft upstream from sanitary dam, and 1.7 mi upstream from Paxton Creek.
    DRAINAGE AREA.--24,100 mi2.
    PERIOD OF RECORD.--October 1890 to current year.
    GAGE.--Water-stage recorder. Concrete control since Aug. 29, 1916. Datum of gage is 290.01 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1928, non-recording gage at Walnut Street Bridge 600 ft upstream, and Oct. 1, 1928, to Aug. 31, 1975, water-stage recorder at site 3,170 ft downstream, all gages at same datum.
    GAGE HEIGHTS OF IMPORTANCE.-
    Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 45.2 ft; Data transmitter operational limit - 46.2 ft;
    Supplied by NWS: Action stage-11 ft, recreational use of City Island begins to be curtailed; river interests should monitor conditions; Flood stage-17 ft, basements of residences and businesses on both banks flood; the parking lot on City Island begins to take on water; Moderate flood stage-20 ft, a number of homes in West Fairview, Dauphin and Harrisburg flood; Major flood stage-23 ft, evacuations are necessary in the Shipoke area of Harrisburg; the water level reaches the corner of Keller and Front Streets.
    EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage known during period 1786 to 1890, 26.8 ft at Walnut Street bridge, June 2, 1889, discharge, 654,000 ft3/s.
    COOPERATION.--Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by Excelon Generation, the Pennsylvania Department of Environmental Protection and the U. S. Geological Survey through the National Streamflow Information Program and the Cooperative Water Program.
    REMARKS.--
    The 30-minute precipitation data for this station are temporary and will only be displayed for 120 days. Time series of 1-hour or cumulative daily values will NOT be available for retrieval following the 120-day display period. Although the instrumentation is calibrated at least once a 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.

    Water-quality parameters at this station can vary substantially at different location in the river. Therefore, water-quality data displayed here characterizes conditions only at the location where water-quality equipment is deployed.
    This station managed by the PAWSC New Cumberland Office.

    Available Parameters Available Period
    All 11 Available Parameters for this site
      
    00060 Discharge 2007-10-01  2014-08-30
    00065 Gage height 2014-05-02  2014-08-30
    00010 Temperature, water 2008-05-16  2014-08-30
    00095 Specific cond at 25C 2008-05-16  2014-03-14
    00300 Dissolved oxygen 2008-05-20  2013-12-03
    00400 pH 2008-05-17  2013-12-03
    00045 Precipitation 2014-05-02  2014-08-30
    00010 Temperature, water, WALNUT ST PIER 2013-07-25  2014-08-27
    00095 Specific cond at 25C, WALNUT ST PIER 2013-07-25  2014-08-27
    00400 pH, WALNUT ST PIER 2013-07-25  2014-08-27
    00300 Dissolved oxygen, WALNUT ST PIER 2013-07-25  2014-08-27

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


    Discharge, cubic feet per second

    Most recent instantaneous value: 12,600   08-30-2014  17:00 EDT
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    Daily discharge, cubic feet per second -- statistics for Aug 30 based on 123 years of record more
    Min
    (1966)
    25th
    percen-
    tile
    Median Mean 75th
    percen-
    tile
    Most Recent
    Instantaneous
    Value Aug 30
    Max
    (2011)
    2520 4780 7040 11800 12300 12600 73300


    Gage height, feet

    Most recent instantaneous value: 3.73   08-30-2014  17:00 EDT
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    Temperature, water, degrees Celsius

    Most recent instantaneous value: 23.9   08-30-2014  17:15 EDT
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    Precipitation, total, inches

    Most recent instantaneous value: 0.00   08-30-2014  17:00 EDT
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    Temperature, water, degrees Celsius, WALNUT ST PIER

    Most recent instantaneous value: 24.4   08-27-2014  09:00 EDT
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    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, WALNUT ST PIER

    Most recent instantaneous value: 251   08-27-2014  08:30 EDT
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    pH, water, unfiltered, field, standard units, WALNUT ST PIER

    Most recent instantaneous value: 8.7   08-27-2014  09:00 EDT
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    Dissolved oxygen, water, unfiltered, milligrams per liter, WALNUT ST PIER

    Most recent instantaneous value: 8.3   08-27-2014  09:00 EDT
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