USGS Water-Year Summary 2021
03085002 Monongahela R at L&D2 Lower Pool at Braddock, PA
LOCATION - Lat 40°23'33", long 79°51'37" referenced to North American Datum of 1983, Allegheny County, PA, Hydrologic Unit 05020005, near right bank on river guide wall 300 ft downstream from dam at lock 2 at Braddock, 1,700 ft downstream from Turtle Creek, and 11.2 mi upstream of confluence with Allegheny River. Water quality sonde located on left bank, left river guide wall of lock and dam at Lat 40 23' 22.25", Long 79 51' 31.75".
DRAINAGE AREA - 7,360 mi².
PERIOD OF RECORD - October 2017 to current year.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 694.2 ft above National Geodetic Vertical Datum of 1929 (U.S. Army Corps of Engineers bench mark)
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Pittsburgh District.
PERIOD OF DAILY RECORD - October, 2013 to November, 2018 (monitor near left bank), June 2020 to current year for water temperature and dissolved oxygen (monitor near right bank).
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Pittsburgh District and Sustainable Hydro, Braddock, LLC
INSTRUMENTATION - Continuous water-quality monitor measuring water temperature and dissolved oxygen at a 15-minute recording interval, interfaced with a data collection platform. Values reported by the monitor may not be representative of the entire river width.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 29.5°C, August 31, 2016; minimum, -0.2°C, several days in February and March, 2015
DISSOLVED OXYGEN: 15 mg/l. several days in 2018; minimum, 6.7 mg/l, July 16, 2014.