LOCATION.-- Lat 39°16'07", long 89°32'02" (NAD of 1927), in NE1/4SE1/4 sec.33, T.10 N., R.4 W., Montgomery County, Hydrologic Unit 07140203, on right bank at downstream side of highway bridge, 0.8 mi east of State Highway 127, 4.0 mi southeast of Raymond, and at mile 2.9. | |
DRAINAGE AREA.-- 17.3 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: May 1960 to September 1982. | |
REVISED RECORDS.-- WSP 1915: 1960(P). WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder. Datum of gage is 598.08 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,140 ft3/s Apr. 21, 1973, gage height, 12.80 ft, from rating curve extended above 580 ft3/s; maximum gage height, 14.79 ft Oct. 12, 1969; no flow for many days in most years. | |