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|Data Type||Begin Date||End Date||Count|
|Current / Historical Observations (availability statement)||2007-10-01||2014-11-26|
|Discharge, cubic feet per second||1938-10-01||2014-11-25||27815|
|Discharge, cubic feet per second||1938-10-01||2014-07-22||27689|
|Discharge, cubic feet per second||1938-10||2014-07|
|Discharge, cubic feet per second||1939||2014|
|Field/Lab water-quality samples||1957-11-18||1981-09-25||33|
Additional Data Sources
|Instantaneous-Data Archive **offsite**||1991-12-15||2007-09-30||155198|
STATION.--03049500 ALLEGHENY RIVER AT NATRONA, PA
LOCATION.--Lat 40`36'55", long 79`43'07", Allegheny County, Hydrologic Unit 05010009, on right bank 520 ft upstream from dam at lock 4 at Natrona, 5.8 mi downstream from Kiskiminetas River, and at mile 24.3.
DRAINAGE AREA.--11,410 mi2, approximately.
PERIOD OF RECORD.--October 1938 to current year.
GAGE.--Water-stage recorder and concrete dam control. Datum of gage is 736.36 ft above sea level (U.S. Army Corps of Engineers bench mark). Prior to Apr. 14, 1940, nonrecording gage and Apr. 15, 1940 to Oct. 22, 1990, water-stage recorder at same site at datum 0.75 ft higher.
REMARKS.--U.S. Army Corps of Engineers satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Mar. 18, 1936 reached a stage of 32.06 ft, discharge, 365,000 ft3/s, determined by U.S. Army Corps of Engineers.
FLOOD STAGE.--NOAA, National Weather Service river forecast station flood stage provided to USGS April 1999 is 21 feet.
COOPERATION.--Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection, the U.S. Army Corps of Engineers, and the U.S. Geological Survey.