aware that the sharp rises and drops in the graphs displayed for some
of the Allegheny River gages are being caused by hydroelectric power
producers passing relatively large amounts of streamflow.
--03036500 ALLEGHENY RIVER AT KITTANNING,
--Lat 40`49'13", long
79`31'54", Armstrong County, Hydrologic Unit 05010006, on
right bank 600 ft upstream from dam at lock 7 at Kittanning, 5.7 mi
upstream from Crooked Creek, 9.7 mi downstream from Mahoning Creek, and
at mile 45.8.
--8,973 square miles.
PERIOD OF RECORD.
--August 1904 to September 1928,
October 1934 to current year. Monthly discharge only for some periods,
published in WSP 1305.
--Water-stage recorder and concrete dam control.
Datum of gage is 773.40 ft above National Geodetic Vertical Datum of
1929 (U.S. Army Corps of Engineers bench mark). Prior to Sept. 30,
1928, nonrecording gage at site 4,000 ft downstream at different datum.
Oct. 1, 1934 to Apr. 19, 1939, nonrecording gage, Apr. 20, 1939 to
Sept. 27, 1990, water-stage recorder at present site at different
--Station established and maintained by
the U.S. Geological Survey. 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 through the National Streamflow Information Program
and the Cooperative Water Program.
--Flow regulated since 1965 by Allegheny
Reservoir, since 1949 by Chautauqua Lake, since 1941 by Tionesta Lake,
since 1971 by Union City Reservoir, since 1974 by Woodcock Creek Lake,
since 1942 by East Branch Clarion River Lake, since 1924 by Piney
Reservoir, and since 1941 by Mahoning Creek Lake. U.S. Army Corps of
Engineers satellite telemeter at station.
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-17 ft; Flood stage-21
ft; Moderate flood stage-22 ft; Major flood stage-23 ft.