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USGS 01570500 Susquehanna River at Harrisburg, PA

PROVISIONAL DATA SUBJECT TO REVISION

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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  2014-12-21
00065 Gage height 2014-08-23  2014-12-21
00010 Temperature, water 2008-05-16  2014-12-21
00095 Specific cond at 25C 2008-05-16  2013-10-21
00300 Dissolved oxygen 2008-05-20  2013-12-03
00400 pH 2008-05-17  2013-12-03
00045 Precipitation 2014-08-23  2014-12-21
00010 Temperature, water, WALNUT ST PIER 2013-07-25  2014-10-02
00095 Specific cond at 25C, WALNUT ST PIER 2013-07-25  2014-10-02
00400 pH, WALNUT ST PIER 2013-07-25  2014-10-02
00300 Dissolved oxygen, WALNUT ST PIER 2013-07-25  2014-10-02

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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: 36,800   12-21-2014  09:00 EST
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Daily discharge, cubic feet per second -- statistics for Dec 21 based on 124 years of record more
Min
(1923)
25th
percen-
tile
Median Mean Most Recent
Instantaneous
Value Dec 21
75th
percen-
tile
Max
(1938)
3300 16000 27200 33400 36800 46900 136000


Gage height, feet

Most recent instantaneous value: 5.05   12-21-2014  09:00 EST
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Temperature, water, degrees Celsius

Most recent instantaneous value: 2.4   12-21-2014  09:15 EST
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Precipitation, total, inches

Most recent instantaneous value: 0.00   12-21-2014  09:00 EST
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