USGS Water-Year Summary 2021
06600900 South Omaha Creek at Walthill, Nebr.
LOCATION - Lat 42°08'53", long 96°29'00" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 sec.11, T.25 N., R.8 E., Thurston County, NE, Hydrologic Unit 10230001, on right bank just upstream of bridge on Nebraska Highway 94, 1.5 miles below the confluence with Cow Creek, 1.7 miles upstream of the confluence with North Omaha Creek, and 0.1 mi east of Walthill.
DRAINAGE AREA - 51.2 mi².
PERIOD OF RECORD - October 2002 to September 2003, October 2005 to September 2009, October 2010 to current year.
GAGE - Water-stage recorder with satellite telemetry. Elevation of gage is 1,183 ft above sea level, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Extremes since water year 2003: maximum peak flow, 5,400 ft³/s, March 13, 2019, gage height, 24.63 ft.