--01473500 SCHUYLKILL RIVER AT NORRISTOWN,
--Lat 40`06'40", long
75`20'50", Montgomery County, Hydrologic Unit 02040203, at
Haws Avenue bridge leading to Barbadoes Island, 0.2 mi upstream from
Stony Creek 0.6 mi upstream from Norristown Dam at Norristown.
--1,760 square miles.
PERIOD OF RECORD.
--August 2001 to current year.
October 1927 to May 1933, at site 0.6 miles downstream, at different
datum. October 1983 to September 1993, annual maximums from crest-stage
gage located 0.7 miles downstream, at different datum.
--Water-stage recorder, water-quality, and Pluvio
precipitation gage. monitor. Datum of gage is 51 ft above National
Geodetic Vertical Datum of 1929, from topographic map. Satellite
telemetry at station.
--Funding for the operation of this
station is provided by the U.S. Geological Survey and the U.S. Army
Corps of Engineers, Philadelphia District. Funding for operation of the
water-quality monitor is provided by the City of Philadelphia, Water
GAGE HEIGHTS OF IMPORTANCE
|The 15-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 NWS:
Action stage-12 ft; Flood stage-13
ft; Moderate flood stage-17 ft; Major flood stage-19 ft.