LOCATION.-- Lat 39°30'24", long 88°31'39" (NAD of 1927), in SE1/4SE1/4 sec.4, T.12 N., R.6 E., Moultrie County, Hydrologic Unit 07140201, on left downstream side of bridge on County Highway 3 (1500 E), 3.3 mi south of Allenville, and at mile 5.8. | |
DRAINAGE AREA.-- 34.6 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: February 1980 to current year. | |
STAGE: Water years 1994 to current year. Gage-height record for January 1963 to February 1980 available in files of U.S. Army Corps of Engineers. | |
REVISED RECORDS.-- WDR IL-81-1: 1980. | |
GAGE.-- Water-stage recorder and U.S. Army Corps of Engineers satellite telemeter. Datum of gage is 617.00 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISHCARGE AND STAGE: Maximum discharge, 3,260 ft3/s, May 12, 2002, gage height, 13.38 ft, from rating curve extended above 1,890 ft3/s; no flow for many days in most years. | |
EXTREMES OUTSIDE PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Flood of July 1971 reached a stage of 13.67 ft, discharge not determined, from U.S. Army Corps of Engineers. | |