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|Data Type||Begin Date||End Date||Count|
|Current / Historical Observations (availability statement)||2007-10-01||2014-09-02|
|Discharge, cubic feet per second||1933-10-01||2014-09-01||29556|
|Discharge, cubic feet per second||1933-10-01||2013-09-30||29220|
|Discharge, cubic feet per second||1933-10||2013-09|
|Discharge, cubic feet per second||1934||2013|
|Field/Lab water-quality samples||1961-10-17||2014-02-26||426|
Additional Data Sources
|Instantaneous-Data Archive **offsite**||1990-10-01||2007-09-30||358411|
|Annual Water-Data Report (pdf) **offsite**||2006||2013||8|
STATION.--03086000 OHIO RIVER AT SEWICKLEY, PA
LOCATION.--Lat 40`32'57", long 80`12'21", Allegheny County, Hydrologic Unit 5030101, near left bank 50 ft upstream from Dashields Dam, 1.0 mi downstream from Narrows Run, 1.0 mi northwest of Sewickley, and 13.3 mi downstream from confluence of Allegheny and Monongahela Rivers.
DRAINAGE AREA.--19,500 mi2, approximately.
PERIOD OF RECORD.--October 1933 to current year.
GAGE.--Water-stage recorder and fixed-crest concrete dam control. Datum of gage is 680.00 ft above sea level (U.S. Army Corps of Engineers benchmark). Prior to Nov. 22, 1933, nonrecording gage, Nov. 22, 1933 to May 4, 1981, water-stage recorder at site 1.5 mi upstream, Nov. 14, 1988 to July 12, 1990, nonrecording gage, and July 13, 1990 to June 13, 1991, water-stage recorder at present site at datum 10.41 ft higher.
REMARKS.--Some regulation by locks, and by many reservoirs above station. Combined capacity of reservoirs and lakes, excluding that of Chautauqua Lake, but including Lake Lynn, Deep Creek Reservoir, and 15 smaller reservoirs, 2,773,000 acre-ft. U.S. Army Corps of Engineers satellite telemeter at station.
FLOOD STAGE.--NOAA, National Weather Service river forecast station flood stage provided to USGS April 1999 is 25 feet.
COOPERATION.--Funding for the operation of this station is provided by the U.S. Army Corps of Engineers and the U.S. Geological Survey.