USGS Water-Year Summary 2023
05457700 Cedar River at Charles City, IA
LOCATION - Lat 43°03'43.9", long 92°40'25.98" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 NE 1/4 sec.12, T.95 N., R.16 W., Floyd County, IA, Hydrologic Unit 07080201, on right bank 800 ft downstream from bridge on U.S. Highway 18 (Brantingham Street) in Charles City, 10.6 mi upstream from Gizzard Creek, and 231.3 mi upstream from mouth.
DRAINAGE AREA - 1,054 mi².
PERIOD OF RECORD - Discharge records from October 1964 to September 1995, October 2000 to current year; stage-only records from October 1995 to September 2000.
GAGE - Water-stage recorder. Datum of gage is 973.15 ft above North American Vertical Datum of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of March 27, 1961, reached a stage of 21.6 ft, from high-water mark, discharge 29,200 ft³/s.
PERIOD OF RECORD - Water years 1988, 1995, 2001-2002, 2011-2012. Period of record includes water-quality data published in USGS annual reports and various project reports.