USGS Water-Year Summary 2018
06453600 Ponca Creek at Verdel, Nebr.
LOCATION - Lat 42°48'40", long 98°10'33" referenced to North American Datum of 1983, in NE 1/4 NE 1/4 sec.30, T.30 N., R.7 W., Knox County, NE, Hydrologic Unit 10150001, near right bank downstream of bridge on State Highway 12, 0.9 mi east of Verdel and 3.8 mi upstream from mouth.
DRAINAGE AREA - 812 mi².
- WSP 2117: Drainage area. WDR NE-1996-1 (M).
PERIOD OF RECORD - October 1957 to current year.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 1,232.92 ft above sea level (Nebraska Department of Roads reference marks). See WSP 1917 for history of changes prior to Nov. 15, 1962.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 15,700 ft³/s, March 27, 1960, gage height, 15.10 ft, site and datum then in use. Maximum peak stage, 17.30 ft, March 6, 1993, from floodmark, backwater from ice.