USGS Water-Year Summary 2020
05454090 Muddy Creek at Coralville, IA
LOCATION - Lat 41°42'00", long 91°33'46" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NE 1/4 sec.32, T.80 N., R.6 W., Johnson County, IA, Hydrologic Unit 07080209, on right bank 10 ft upstream from bridge on 1st Avenue in Coralville, and 1.3 mi upstream from mouth.
DRAINAGE AREA - 8.70 mi².
PERIOD OF RECORD - Discharge records from November 2006 to current year.
GAGE - Water-stage recorder. Datum of gage is 665.09 ft above North American Vertical Datum of 1988.