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, heated tipping bucket
precipitation gage, 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, non-recording gage at
site 4,000 ft downstream at different datum. Oct. 1, 1934 to Apr. 19,
1939, non-recording gage, Apr. 20, 1939 to Sept. 27, 1990, water-stage
recorder at present site at different datum. Satellite telemetry at
--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.
--Sharp rises and drops in discharge during
periods of low flow may be caused by hydroelectric power production.
Flow regulated since 1924 by Piney Reservoir, since December 1940 by
Tionesta Lake (station 03019500), since June 1941 by Mahoning Creek
Lake (station 03035500), since November 1949 by Chautauqua Lake, since
June 1952 by East Branch Clarion River Lake (station 03027000), since
October 1965 by Allegheny Reservoir (station 03012520), since July 1970
by Union City Reservoir (station 03021518), and since January 1974 by
Woodcock Creek Lake (station 03022550).
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.