USGS Water-Year Summary 2021
05593900 EAST FORK SHOAL CREEK NEAR COFFEEN, IL
LOCATION - Lat 39°08'55", long 89°21'09" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.7, T.8 N., R.2 W., Montgomery County, IL, Hydrologic Unit 07140203, on right bank at downstream side of bridge on County Highway 8, 4.5 mi northeast of Coffeen, 6.5 mi east of Hillsboro, and at mile 39.3.
DRAINAGE AREA - 55.5 mi².
- WDR IL-75-1: Drainage area.
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1963 to current.
STAGE: Water years 1994 to current.
GAGE - Water-stage recorder, satellite telemeter, and crest-stage gage. Datum of gage is 574.76 ft above NGVD of 1929 (574.39 ft NAVD 1988).
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 7,790 ft³/s, July 24, 2010, from rating curve extended above 4,300 ft³/s, gage height, 14.89 ft, from floodmark. No flow for many days in most years.