STATION.--03049680 ALLEGHENY RIVER AT LOCK AND DAM NO. 2 AT ASPINWALL, PA
LOCATION.--Lat 40`29'15", long 79`54'54", Allegheny County, Hydrologic Unit 05010009, on left bank land wall of Lock #2, 0.34 mi upstream from entrance to the Pittsburgh Zoo, 0.02 mi downstream from Highland Park Bridge and 0.53 mi northwest of Highland Park.
DRAINAGE AREA.--11,700 square miles.
PERIOD OF RECORD.-- August 2010 to current year.
GAGE.--Water stage recorder. Station maintained for stage readings only. Datum of gage is Datum of gage is 711.5 ft above North American Vertical Datum of 1988. Prior to February 15, 2024 the datum of gage was reported as 712.0 ft above National Geodetic Vertical Datum of 1929.
COOPERATION.--Funding for the operation of this station provided by the U.S. Army Corps of Engineers, Pittsburgh District.