USGS Water-Year Summary 2021
03110690 OHIO RIVER AT NEW CUMBERLAND LOCK & DAM (LOWER), OH
LOCATION - Lat 40°31'41", long 80°37'33" referenced to North American Datum of 1927, Jefferson County, OH, Hydrologic Unit 05030101, at downstream side of Lock and Dam, and at mile 54.4 measured downstream from Pittsburgh, PA.
DRAINAGE AREA - 23,820 mi².
PERIOD OF RECORD - November 2005 to September 2012 (annual maximum and minimum gage height), October 2012 to current year (daily mean gage height).
GAGE - Water-stage recorder with satellite telemeter. Datum of gage is 631.56 ft above NAVD 88 (VERTCON conversion of 632.10 ft above NGVD 29).
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 37.63 ft, Feb. 17, 2018; minimum, 11.55 ft, Apr. 21, 2012.
PERIOD OF RECORD - July 2015 to current year.
INSTRUMENTATION - Electronic data logger with 15-minute record interval. Heated tipping bucket rain gage.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 3.51 in., September 9, 2018; minimum precipitation, 0.00 in., on many days.