USGS CD-ROM: Current Year Discharge

05592100 KASKASKIA RIVER NEAR COWDEN, IL

LOCATION.--Lat 39°13'50", long 88°50'33", in NW¼NW¼ sec.14, T.9 N., R.3 E., Shelby County, 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.

PERIOD OF RECORD.--July 1970 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 500.00 ft above sea level (levels by U.S. Army Corps of Engineers). July 19, 1976, to Oct. 4, 1977, nonrecording gage on upstream side of bypass bridge, 75 ft upstream at same datum.

REMARKS.--Records good. Flow partially regulated by Lake Shelbyville (station 05591950), 26 mi upstream from gage. U.S. Army Corps of Engineers satellite telemeter at station.

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	116	38	68	989	1060	1560	4950	1360	1550	2640	1430	1620
2	189	39	77	987	1050	1520	4750	1240	1530	2630	1520	1610
3	223	38	69	990	1040	1380	4670	2520	1640	2580	1490	1490
4	153	38	60	989	938	1120	5790	3900	1640	2480	1440	1330
5	122	39	55	995	914	1090	5320	2170	1370	2460	2450	1290

6	119	44	52	1020	813	1230	4590	1700	1540	2450	1300	1120
7	120	44	51	1240	703	1290	4080	1730	1640	2900	1180	908
8	119	42	49	1770	681	1540	3890	2580	1640	2700	998	625
9	128	40	49	2440	669	2370	3700	2080	1350	2290	927	443
10	124	39	51	2220	534	2270	3520	1860	1470	2340	1240	334

11	119	38	53	1980	485	1770	3430	1750	1340	1950	1750	251
12	120	37	53	1930	492	1900	3380	1710	2150	1760	1920	160
13	124	37	59	1900	558	2010	3360	1680	2010	1900	2010	111
14	126	40	57	1890	488	2050	3250	1650	2280	1920	2020	98
15	196	40	54	1900	466	2050	3500	1620	1380	1910	2030	91

16	135	38	258	1890	474	2020	4800	1330	2280	2020	2020	84
17	57	38	691	1880	893	2530	3310	1250	2580	2270	1930	80
18	45	38	941	1860	1620	3730	2750	1250	2180	2290	1900	76
19	42	38	966	1850	1410	3230	2450	1380	2680	1970	1740	74
20	39	38	963	1840	1550	6160	2200	1400	2570	2230	1960	69

21	38	41	968	1830	1600	6400	2060	1320	2420	2300	1980	67
22	36	43	983	1720	1560	5550	2000	1250	2730	2110	1980	65
23	35	41	982	1540	1530	5890	1870	1020	3310	1860	1980	59
24	36	39	1000	1410	1510	5320	1730	1370	2880	1360	1960	57
25	36	39	1020	1390	1490	5460	1620	1420	2680	839	1950	60

26	38	48	1040	1370	1490	5390	1520	1540	2680	585	1880	58
27	41	41	1010	1210	1670	5090	1410	1770	2650	1110	1750	53
28	38	38	999	1130	1640	7540	1300	1800	2620	1350	1640	51
29	37	40	997	1120	---	7270	1290	1780	2400	1440	1530	51
30	37	55	996	1100	---	5860	1680	1760	2610	1460	1530	51

31	36	---	994	1070	---	5100	---	1660	---	1310	1600	---

TOTAL	2824	1208	15665	47450	29328	107690	94170	52850	63800	61414	53035	12436
MEAN	91.1	40.3	505	1531	1047	3474	3139	1705	2127	1981	1711	415
MAX	223	55	1040	2440	1670	7540	5790	3900	3310	2900	2450	1620
MIN	35	37	49	987	466	1090	1290	1020	1340	585	927	51

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 1998, BY WATER YEAR (WY)
MEAN	396	616	1523	1739	1912	2143	1550	1111	1155	1018	769	412
MAX	1769	2572	4259	4425	4787	5897	5221	4257	3258	2954	2360	1868
(WY)	1975	1994	1986	1993	1974	1979	1979	1996	1974	1974	1974	1974
MIN	13.2	12.1	7.27	8.02	69.4	332	140	36.3	25.6	24.5	19.6	13.5
(WY)	1988	1977	1977	1977	1977	1992	1986	1987	1988	1976	1976	1976

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1970 - 1998
ANNUAL TOTAL	267594		541870
ANNUAL MEAN	733		1485		1198
HIGHEST ANNUAL MEAN					2409	1974
LOWEST ANNUAL MEAN					353	1977
HIGHEST DAILY MEAN	8910	Feb 27	7540	Mar 28	17300	Apr 12 1979
LOWEST DAILY MEAN	31	Sep 16	35	Oct 23	4.6	Oct 6 1984
ANNUAL SEVEN-DAY MINIMUM	36	Sep 3	37	Oct 20	6.0	Nov 30 1976
INSTANTANEOUS PEAK FLOW			9730	Mar 28	19700 A	Apr 12 1979
INSTANTANEOUS PEAK STAGE			17.55	Mar 28	19.12 B	Feb 23 1985
INSTANTANEOUS LOW FLOW			35	Oct 22,23,24
10 PERCENT EXCEEDS	2660		2740		2950
50 PERCENT EXCEEDS	119		1400		790
90 PERCENT EXCEEDS	38		42		31

A - Gage-height, 18.97 ft.
B - Discharge, 16,800 ft³/s.