05578500 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05578500 SALT CREEK NEAR ROWELL, IL

LOCATION.-- Lat 40°06'54", long 89°02'57", in NE1/4SE1/4 sec.11, T.19 N., R.1 E., De Witt County, Hydrologic Unit 07130009, on right bank at downstream side of bridge on County Road 490 E, 0.5 mi upstream from State Highway 54, 0.8 mi upstream from a railroad bridge and Ten Mile Creek, 3.2 mi northwest of Rowell, and at mile 65.3.

DRAINAGE AREA.-- 335 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1942 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 610.00 ft above sea level (U.S. Army Corps of Engineers bench mark).

REMARKS.-- Beginning Oct. 12, 1977, flow partially regulated by Clinton Reservoir, 11 mi upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 24,500 ft³/s, May 16, 1968, gage height, 29.21 ft; maximum discharge after Clinton Reservoir Oct. 1977, 7,810 ft³/s, Apr. 13, 1994, gage height 24.04 ft; minimum daily discharge, 0.7 ft³/s, Oct. 4, 1954.

REMARKS FOR CURRENT YEAR.-- Remarks good except those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	9.9	16	85	e45	982	1850	204	84	61	48	11	11
2	9.8	17	98	e45	985	1440	198	79	59	51	11	9.2
3	11	18	83	e48	843	1010	199	77	65	42	12	8.9
4	13	15	69	e51	689	802	196	76	111	46	11	8.6
5	24	15	57	e54	581	649	175	91	146	40	11	8.4

6	19	24	e52	e56	518	554	176	85	198	37	10	8.4
7	12	52	58	e56	490	495	172	81	261	31	10	8.6
8	11	21	57	e54	501	436	165	76	302	25	10	8.6
9	11	35	e54	e52	712	392	166	69	312	26	10	12
10	12	53	e50	e50	911	359	177	65	303	28	9.8	11

11	12	69	e60	e50	1060	333	216	60	281	26	9.5	9.3
12	12	98	e70	e52	1030	320	204	68	269	24	9.7	8.7
13	14	110	e90	e54	831	290	223	64	245	18	9.7	8.5
14	15	114	e120	e60	870	272	229	56	222	15	9.5	8.2
15	27	122	e100	80	913	275	241	53	199	15	9.3	8.1

16	14	124	e90	79	840	371	206	47	171	14	10	7.9
17	13	111	e86	79	740	392	181	50	152	13	10	8.3
18	13	119	e83	79	633	412	172	72	136	23	11	9.2
19	14	111	e80	79	546	431	161	80	111	18	16	18
20	14	93	e78	76	489	427	153	75	103	14	10	11

21	14	87	e74	71	432	411	146	73	121	13	9.7	13
22	14	93	e70	e68	384	386	154	60	123	13	9.6	10
23	15	93	e66	e64	334	360	144	56	112	13	24	10
24	15	88	e62	e60	659	333	133	55	100	14	13	9.6
25	16	94	e59	e58	1920	302	141	54	89	14	10	8.8

26	17	100	e56	e56	2120	279	134	54	79	17	10	8.5
27	17	90	e54	e54	2560	263	120	55	74	14	9.6	8.2
28	18	87	e52	e54	2220	250	126	61	69	13	9.3	7.4
29	24	88	e50	261	---	238	111	64	61	17	9.0	7.8
30	26	80	e48	1310	---	234	97	69	55	13	9.6	8.3

31	22	---	e46	869	---	221	---	68	---	12	17	---

TOTAL	478.7	2237	2157	4124	25793	14787	5120	2077	4590	707	341.3	283.5
MEAN	15.4	74.6	69.6	133	921	477	171	67.0	153	22.8	11.0	9.45
MAX	27	124	120	1310	2560	1850	241	91	312	51	24	18
MIN	9.8	15	46	45	334	221	97	47	55	12	9.0	7.4

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1978 - 2001, BY WATER YEAR (WY)
MEAN	117	165	242	219	334	553	492	504	346	229	132	58.8
MAX	1069	1236	1268	1316	975	2129	1704	1648	850	1370	1576	658
(WY)	1994	1986	1983	1993	1982	1982	1979	1995	1999	1981	1981	1993
MIN	8.31	9.77	12.1	11.0	14.9	22.3	54.8	45.2	13.7	8.51	6.57	5.46
(WY)	1989	1989	1996	1980	1989	2000	2000	1988	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1978 - 2001
ANNUAL TOTAL	23869.0		62695.5
ANNUAL MEAN	65.2		172		282
HIGHEST ANNUAL MEAN					601	1993
LOWEST ANNUAL MEAN					56.3	2000
HIGHEST DAILY MEAN	722	Jun 21	2560	Feb 27	6960	Apr 13 1994
LOWEST DAILY MEAN	9.0 A	Jan 25	7.4	Sep 28	3.7	Sep 8 1988
ANNUAL SEVEN-DAY MINIMUM	9.5	Jan 22	8.4	Sep 24	4.1	Sep 4 1988
MAXIMUM PEAK FLOW			2670	Feb 27	7810	Apr 13 1994
MAXIMUM PEAK STAGE			19.40	Feb 27	24.04	Apr 13 1994
INSTANTANEOUS LOW FLOW			6.9	Sep 28
10 PERCENT EXCEEDS	152		431		716
50 PERCENT EXCEEDS	22		62		111
90 PERCENT EXCEEDS	12		10		11

	A - Estimated due to backwater from ice.