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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
05592100 KASKASKIA RIVER NEAR COWDEN, IL
LOCATION - Lat 39°13'47.5", long 88°50'30.6" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.14, T.9 N., R.3 E., Shelby County, IL, Hydrologic Unit 07140201, on left bank at downstream side of bridge on State Highway 128, 0.7 mi downstream from Richland Creek, 1.5 mi southeast of Cowden, and at mile 173.5.
DRAINAGE AREA - 1,330 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 1970 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978-91.
MISCELLANEOUS: Water years 1998 and 2002.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: July 1970 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978-91.
MISCELLANEOUS: Water years 1998 and 2002.
GAGE - Water-stage recorder, U.S. Army Corps of Engineers satellite
telemeter, and crest-stage gage. Datum of gage is 499.95 ft above NAVD of 1988. July 19, 1976, to Oct. 4, 1977, nonrecording gage on
upstream side of bypass bridge, 75 ft upstream at same datum.
REMARKS - Flow partially regulated by dam at Lake Shelbyville (station 05591950) about 24 mi upstream from gage. Intermittent water withdrawals of about 5 ft³/s about 1 mile upstream for power plant and public water supply.
Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES FOR PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 25,300 ft³/s, May 12, 2002, gage height, 20.36 ft; minimum daily discharge, 4.6 ft³/s, Oct. 6, 1984.
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 25,300 ft³/s, May 12, 2002, gage height, 20.36 ft; minimum daily discharge, 4.6 ft³/s, Oct. 6, 1984.
