LOCATION.-- Lat 39°21'12", long 89°15'05" (NAD of 1927), in NE1/4SE1/4 sec.36, T.11 N., R.2 W., Christian County, Hydrologic Unit 07130007, on right bank at downstream side of highway bridge, 0.7 mi upstream from small tributary and 4.0 mi northeast of Nokomis.

DRAINAGE AREA.-- 11.0 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: December 1950 to October 1975.

REVISED RECORDS.-- WSP 1508; 1951, 1955(M), 1956, WDR IL-75-1: drainage area.

GAGE.-- Water-stage recorder. Datum of gage is 641.35 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,600 ft³/s June 28, 1957, gage height, 14.84 ft, from rating curve extended above 1,500 ft³/s on basis of slope-area study; no flow for many days in most years.