USGS Water-Year Summary 2024
03049681 Allegheny R at L&D 2 (lower pool) at Aspinwall, PA
LOCATION - Lat 40°29'17.29", long 79°55'02.40" referenced to North American Datum of 1983, Allegheny County, PA, Hydrologic Unit 05010009,
DRAINAGE AREA - 11,700 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 2016 to current year.
GAGE - Water stage recorder with reference staff gage. Datum of gage is 693.4 ft above North American Vertical Datum of 1988. Prior to February 15, 2024, the datum of gage was reported as 694.20 ft above National Geodetic Vertical Datum of 1929. Telemetry at site.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Pittsburgh District.