LOCATION.-- Lat 40°33'45", long 90°31'23" (NAD of 1927), in NE1/4SE1/4 sec, 29, T.7 N., R.1 W., McDonough County, Hydrologic Unit 07130010, on right bank at downstream side of bridge, 200 ft above Burlington Northern Railroad bridge, 1 mi northwest of Bushnell, and at mile 5.5. | |
DRAINAGE AREA.-- 26.3 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: June 1960 to January 1983, August 1983 to September 1983. | |
REVISED RECORDS.-- WDR IL-75-1: 1971(M), drainage area. | |
GAGE.-- Water-stage recorder. Datum of gage is 615.02 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,500 ft3/s June 2, 1980, gage height, 12.92 ft, on basis of indirect measurement of peak flow; maximum gage height, 13.26 ft Sept. 24, 1960; no flow for many days in most years. |