--01474500 SCHUYLKILL RIVER AT PHILADELPHIA,
--Lat 39`58'04", long
75`11'20", Philadelphia County, Hydrologic Unit 02040203, on
right bank 150 ft upstream from Fairmount Dam, 1,500 ft upstream from
bridge on Spring Garden Street in Philadelphia, and 8.7 mi upstream
from mouth. Water-quality sampling site 1.6 mi upstream.
--1,893 square miles.
PERIOD OF RECORD.
--October 1931 to current year.
--Water-stage recorder, water-quality monitor,
Pluvio precipitation gage, and concrete control. Datum of gage is 5.74
ft above National Geodetic Vertical Datum of 1929. Prior to Nov. 25,
1956, water-stage recorder at site on right bank just upstream from
Fairmount Dam at same datum. Nov. 26, 1956, to Oct. 6, 1966,
water-stage recorder at site on left bank 40 ft upstream from Fairmount
Dam at same datum. Satellite telemetry at station.
--Funding for the operation of this
station is provided by the City of Philadelphia Water Department, the
U.S. Army Corps of Engineers, Philadelphia District, and the U.S.
of specific conductance, dissolved oxygen, and pH instrumentation is
conducted exclusively by Philadelphia Water Department personnel with
USGS oversight. Erroneous or missing data, resulting from instrument
malfunction, are not the responsibility of USGS.
GAGE HEIGHTS OF IMPORTANCE
|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.
Supplied by USGS
: Maximum recordable gage height
(stage sensor operational limit) - 19.4 ft; Data transmitter
operational limit - 19.8 ft;
Supplied by NWS
: Action stage-10 ft, at 10.4 ft Kelly
Drive floods/closes between North Ferry Road and Falls Bridge; Flood
stage-11 ft, Kelly Drive is flooded and closed between Hunting Park
Avenue and Falls Bridge; Flat Rock area is flooded; Moderate flood
stage-13 ft, Main Street in Manayunk is closed from Ridge Avenue to
Leverington Street; Major flood stage-15.5 ft.