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NOTICE (09/03/2008) -- After
September 30, 2008, data collection at this streamgage may be
discontinued due to funding reductions from partner agencies. Although
historic data will remain accessible, no new data will be collected
unless one or more new funding partners are found. Users who can
contribute funding to continue operation of this streamgage should
contact Bob Hainly of the USGS Pennsylvania Water Science Center at
(717-730-6971, rahainly@usgs.gov).
NOTICE (10/01/2008) -- Data collection and
real-time data delivery at this streamgage will be continued while
active funding negotiations are underway with several
parties.
NOTICE (11/26/2008) -- Data
collection and real-time data delivery from this streamgage will be
continued through September 30, 2009, as a result of funding received
from the Pennsylvania Department of Environmental Protection. Funding
for operation of equipment at this site is uncertain beyond September
2009.
STATION.--01570500 SUSQUEHANNA RIVER AT
HARRISBURG, PA
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, nonrecording 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.
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.
FLOOD STAGE.--NOAA, National Weather Service river
forecast station flood stage provided to USGS April 1999 is 17
feet.
COOPERATION.--Funding for the operation of this
station is provided by the Federal Energy Regulatory Commission, the
U.S. Army Corps of Engineers, the Pennsylvania Department of
Environmental Protection, and the U.S. Geological Survey.
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