USGS CD-ROM: Current Year Discharge

05592000 KASKASKIA RIVER AT SHELBYVILLE, IL

LOCATION.--Lat 39°24'25", long 88°46'50", in SE¼SW¼ sec.8, T.11 N., R.4 E., Shelby County, Hydrologic Unit 07140201, on left bank 700 ft downstream from Lake Shelbyville Dam, 700 ft upstream from bridge on State Highway 16 in Shelbyville, 0.5 mi upstream from railroad bridge, 7 mi upstream from Robinson Creek, and at mile 197.5.

DRAINAGE AREA.--1,054 mi².

PERIOD OF RECORD.--February 1908 to September 1912, November to December 1912, August to December 1914, October 1940 to current year.

REVISED RECORDS.--WSP 975: 1908. WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 535.78 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Dec. 6, 1914, nonrecording gage at site 750 ft downstream at datum 4.67 ft lower. Oct. 1 to Dec. 3, 1940, and June 1, 1950, to July 10, 1952, nonrecording gage and Dec. 4, 1940, to May 31, 1950, and July 11, 1952, to June 30, 1969, water-stage recorder, at site 650 ft downstream at present datum.

REMARKS.--No estimated daily discharges. Records good. Flow regulated by Lake Shelbyville (station 05591950), flood-control storage 474,000 acre-ft, beginning June 24, 1969. U.S. Army Corps of Engineers satellite telemeter at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 25,900 ft³/s, June 29, 1957, gage height, 22.37 ft; no flow at times in 1953-55, 1984.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	195	34	35	970	965	1400	4190	941	1550	2630	1590	1540
2	245	34	35	970	964	1330	4080	945	1630	2620	1620	1500
3	154	34	36	969	890	1110	3940	899	1730	2540	1520	1290
4	104	34	36	968	839	962	3860	969	1460	2490	1500	1220
5	104	34	36	970	764	1050	3680	1200	1430	2480	875	1110

6	104	34	35	1100	638	1200	3560	1120	1660	2560	713	885
7	104	34	35	1200	591	1200	3460	1210	1700	2100	713	611
8	104	34	35	1480	592	1210	3370	1540	1410	1990	713	356
9	104	34	35	1760	502	1280	3260	1540	1110	2340	952	237
10	104	35	35	1850	386	1410	3160	1550	1150	2070	1450	151

11	104	35	35	1840	387	1610	3150	1550	1160	1730	1830	54
12	105	35	35	1850	444	1840	3130	1550	1260	1840	1950	26
13	106	36	35	1850	429	1900	3010	1560	1540	1960	1990	25
14	197	36	35	1840	388	1900	2780	1560	1060	1950	1990	25
15	120	36	219	1840	387	1900	2660	1340	1370	2030	1980	24

16	31	36	644	1840	388	1890	2660	1140	1870	2270	1910	24
17	31	36	887	1840	478	2030	2520	1140	1870	2440	1860	24
18	32	36	987	1830	798	2250	2270	1260	1820	2130	1680	24
19	32	36	988	1830	1190	2370	2030	1350	1440	2210	1830	25
20	32	38	987	1820	1350	2470	1840	1300	2190	2430	1960	24

21	32	36	981	1730	1400	3430	1800	1230	2200	2310	1950	24
22	32	36	983	1540	1400	5090	1720	912	1950	1980	1940	24
23	32	36	979	1370	1400	4600	1610	659	2260	1480	1930	24
24	32	35	978	1310	1400	5100	1510	970	2440	881	1930	24
25	32	36	979	1310	1400	4910	1400	1330	2550	440	1890	24

26	32	35	976	1200	1400	4630	1310	1620	2600	788	1730	25
27	32	36	974	1020	1400	4360	1190	1790	2600	1370	1610	25
28	32	36	972	968	1400	4230	1090	1790	2510	1490	1490	24
29	32	36	972	969	---	4270	981	1800	2100	1530	1450	24
30	33	36	971	966	---	4230	940	1720	2330	1380	1520	24

31	33	---	971	965	---	4210	---	1600	---	1430	1550	---

TOTAL	2466	1059	15941	43965	24570	81372	76161	41085	53950	59889	49616	9417
MEAN	79.5	35.3	514	1418	878	2625	2539	1325	1798	1932	1601	314
MAX	245	38	988	1850	1400	5100	4190	1800	2600	2630	1990	1540
MIN	31	34	35	965	386	962	940	659	1060	440	713	24

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 1998, BY WATER YEAR (WY)
MEAN	395	464	1216	1388	1519	1632	1131	816	961	886	662	318
MAX	2031	1626	3492	3527	4551	4696	3980	2903	2689	2882	2079	1786
(WY)	1970	1994	1986	1993	1974	1979	1979	1996	1996	1974	1973	1973
MIN	5.15	5.44	2.58	3.57	15.4	253	25.3	10.0	8.56	12.5	8.24	3.72
(WY)	1971	1971	1977	1977	1977	1992	1990	1987	1976	1976	1970	1970

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1970 - 1998
ANNUAL TOTAL	215715		459491
ANNUAL MEAN	591		1259		947
HIGHEST ANNUAL MEAN					1941	1974
LOWEST ANNUAL MEAN					275	1971
HIGHEST DAILY MEAN	4390	Mar 11	5100	Mar 24	5100	Mar 24 1998
LOWEST DAILY MEAN	23	Jun 4	24	Several days	.00	A
ANNUAL SEVEN-DAY MINIMUM	26	Jun 3	24	Sep 15	2.0	Dec 22 1976
INSTANTANEOUS PEAK FLOW			5580	Mar 22	5580 B	Mar 22 1998
INSTANTANEOUS PEAK STAGE			12.99	Mar 22	13.16 C	Mar 20 1982
INSTANTANEOUS LOW FLOW			24	Several days
10 PERCENT EXCEEDS	1990		2500		2280
50 PERCENT EXCEEDS	51		1210		584
90 PERCENT EXCEEDS	29		34		14

A - Oct. 2, 3, 1984.
B - Gage height, 12.99 ft.
C - Discharge, 5,090 ft³/s.