USGS Water-Year Summary 2023
05488200 English Creek near Knoxville, IA
LOCATION - Lat 41°18'01.4", long 93°02'41.7" referenced to North American Datum of 1983, in NE 1/4 NE 1/4 SE 1/4 sec.16, T.75 N., R.19 W., Marion County, IA, Hydrologic Unit 07100009, on left bank 5 ft upstream from bridge on State Highway 92, 3.0 mi east of Knoxville, and 12.7 mi upstream from mouth.
DRAINAGE AREA - 90.1 mi².
REVISIONS HISTORY - WDR IA-97: 1996.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge records from July 1985 to current year.
GAGE - Water-stage recorder. Datum of gage is 721.70 ft above North American Vertical Datum of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of July 16, 1982, reached a stage of 30.28 ft, discharge 28,000 ft³/s, from contracted-opening indirect computations.