LOCATION.-- Lat 42°08'21", long 87°54'14" (NAD of 1927), in SW1/4SW1/4 sec.1, T. 42 N., R. 11 E., Cook County, Hydrologic Unit 07120004, on downstream side of bridge on State Highway 68 at Wheeling. | |
DRAINAGE AREA.-- 325 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Annual maximum, water years 1962 to 1977. | |
GAGE.-- Crest-stage gage. Datum is 633.98 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3240 ft3/sec, June 3, 1970, gage height, 4.14 ft. | |