--03025500 ALLEGHENY RIVER AT FRANKLIN,
--Lat 41`23'22", long
79`49'14", Venango County, Hydrologic Unit 05010003, on right
bank at upstream side of Eighth Street bridge on U.S. Highway 322 at
Franklin, 1,000 ft downstream from French Creek, and at mile
PERIOD OF RECORD.
--October 1914 to current year.
Monthly discharge only for some periods, published in WSP 1305.
Gage-height records collected at same site since April 1905 are
contained in reports of U.S. Weather Bureau.
--Water-stage recorder. Datum of gage is 955.84
ft above National Geodetic Vertical Datum of 1929. Prior to Sept. 16,
1932, nonrecording gage, and Sept. 16-30, 1932, water-stage recorder,
at present site at datum 2.00 ft higher.
--Flow regulated by Allegheny Reservoir 74 mi
upstream since 1965, by Chautauqua Lake since 1941, by Tionesta Lake
since 1940, by Union City Reservoir since 1971, and by Woodcock Creek
Lake since January 1974. U.S. Army Corps of Engineers satellite
telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.
|The 1-hour 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.
--Flood of Mar. 17,
1865 reached a stage of 25.0 ft, and that of Mar. 26, 1913 a stage of
24.6 ft, from graph based on gage readings, discharge, 196,000 ft3/s
and 191,000 ft3/s, respectively, from rating curve extended above
120,000 ft3/s. Maximum discharge since at least 1864 is that of Mar.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by NWS:
Action stage-13 ft; Flood stage-17
ft; Moderate flood stage-19 ft; Major flood stage-21 ft.
--Funding for the operation of this
station is provided by the U.S. Army Corps of Engineers, Pittsburgh
District, the Pennsylvania Department of Environmental Protection, and
the U.S. Geological Survey.