--01472000 SCHUYLKILL RIVER AT POTTSTOWN,
--Lat 40`14'30", long
75`39'07", Montgomery County, Hydrologic Unit 02040203, on
right bank 75 ft upstream from bridge on Hanover Street in Pottstown,
and 0.3 mi downstream from Manatawny Creek.
--1,147 square miles.
PERIOD OF RECORD.
--October 1927 to current year.
--Water-stage recorder. Datum of gage is 117.86
ft above National Geodetic Vertical Datum of 1929. October 1927 to Nov.
22, 1928, non-recording gage, and Nov. 23, 1928, to Dec. 26, 1972,
recording gage at site 100 ft downstream at same datum. Dec. 27, 1972,
to May 10, 1974, non-recording gage 1.0 mi downstream at datum 2.83
--Funding for the operation of this
station is provided by the Delaware River Basin Commission, the U.S.
Army Corps of Engineers, Philadelphia District, and the Pennsylvania
Department of Environmental Protection.
--Flow regulated by Blue Marsh Lake (station
01470870) since April 1979, by Still Creek Reservoir (station 01469200)
since February 1933, and by Lake Ontelaunee.
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 USGS
: Maximum recordable gage height
(stage sensor operational limit) - 24.1; Data transmitter operational
limit - 25.0 ft;
Supplied by NWS
: Action stage-11 ft, sewers in
Pottstown Area, due to high and backwater effects, begin to flood;
Flood stage-12.5 ft, portions of PA Rte 724 along Berks/Chester County
line begin to flood; Moderate flood stage-18 ft, additional roads in
Pottstown begin to flood; Major flood stage-22 ft, the Hanover Street
bridge is closed.