05469000 DATA: Discharge Tables, 1999

Station list Available data
HENDERSON CREEK BASIN

05469000 HENDERSON CREEK NEAR OQUAWKA, IL

LOCATION.--Lat 41°00'05", long 90°51'15", in NE1/4SW1/4 sec.28, T.12 N., R.4 W., Henderson County, Hydrologic Unit 07080104, on left bank at downstream side of bridge on State Highway 94, 1 mi south of Bald Bluff, 6.5 mi northeast of Oquawka, and at mile 20.8.

DRAINAGE AREA.--432 mi².

PERIOD OF RECORD.--October 1934 to September 1996. October 1997 to current year. Prior to October 1938, published as Henderson River. Monthly discharge only for some periods, published in WSP 1308.

REVISED RECORDS.--WSP 1208: 1939, 1942-43, 1948. WSP 1308: 1935-38(M), 1941(M). WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 541.21 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Mar. 4, 1941, nonrecording gage at same site and datum.

REMARKS.--Records good except those for Oct. 10-12, 18-19, 21-23, Nov. 21-28, Apr. 24 and May 14-15, which are fair, and those for estimated daily discharges, which are poor. U.S. Army Corps of Engineers satellite telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	83	439	392	e260	856	311	246	910	427	466	62	23
2	65	498	368	e250	1050	306	240	816	667	456	59	23
3	66	686	365	e240	1170	303	282	745	551	352	53	22
4	76	656	351	e230	978	284	379	690	506	314	49	e20
5	1150	572	335	e270	794	286	311	688	1020	287	46	e20

6	1040	525	440	e255	734	304	394	637	735	265	42	e18
7	451	474	1750	e245	683	281	334	580	754	257	49	e18
8	301	472	1140	e230	635	275	309	527	633	236	63	e18
9	230	536	830	e220	603	267	1590	492	980	226	60	e17
10	191	2920	701	e210	552	318	932	471	799	212	44	e17

11	171	6120	631	e200	586	287	665	452	897	195	39	e17
12	150	3170	577	e190	e800	276	541	481	752	182	67	e17
13	136	1460	541	e180	e600	290	479	1510	2110	174	116	e17
14	129	1190	499	e180	e550	295	446	2790	3660	163	81	e16
15	128	978	463	e175	e520	312	478	1530	2230	151	52	e15

16	127	866	442	e172	e490	361	2080	1100	1070	141	40	e15
17	1240	769	423	e170	e450	481	2380	1020	825	131	35	e15
18	5050	700	409	e170	417	462	1360	986	706	128	34	15
19	6380	661	386	e170	403	380	1080	813	633	124	37	15
20	2530	602	351	e170	382	352	907	732	578	125	43	17

21	1210	561	345	e200	357	339	814	691	532	122	34	16
22	932	539	275	e1900	339	319	774	887	495	106	31	e15
23	766	518	e295	e4000	355	305	3740	752	476	93	30	e14
24	678	468	e305	3320	345	297	3630	654	468	84	80	e14
25	612	457	e320	1530	336	283	1560	594	433	100	138	e13

26	554	438	326	1100	330	271	1190	545	387	78	58	e13
27	505	412	303	1240	341	266	1070	509	367	73	41	e22
28	548	399	290	2440	333	268	1190	480	566	105	34	352
29	532	395	e260	e1300	---	266	1390	456	526	120	31	337
30	493	408	e160	980	---	254	1060	431	391	81	26	131

31	457	---	e190	871	---	246	---	420	---	66	25	---

TOTAL	26981	28889	14463	23068	15989	9545	31851	24389	25174	5613	1599	1282
MEAN	870	963	467	744	571	308	1062	787	839	181	51.6	42.7
MAX	6380	6120	1750	4000	1170	481	3740	2790	3660	466	138	352
MIN	65	395	160	170	330	246	240	420	367	66	25	13
CFSM	2.01	2.23	1.08	1.72	1.32	.71	2.46	1.82	1.94	.42	.12	.10
IN.	2.32	2.49	1.25	1.99	1.38	.82	2.74	2.10	2.17	.48	.14	.11

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1999, BY WATER YEAR (WY)
MEAN	156	183	186	254	365	461	503	466	446	315	147	136
MAX	1560	1189	1176	1265	1466	1752	1742	1829	1960	2967	1675	1222
(WY)	1942	1978	1983	1969	1949	1979	1973	1996	1974	1982	1993	1970
MIN	7.10	9.89	8.38	4.45	13.5	47.4	33.4	26.9	31.3	6.58	9.61	5.65
(WY)	1938	1938	1964	1940	1989	1956	1956	1989	1940	1936	1936	1940

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1935 - 1999
ANNUAL TOTAL	254137		208843
ANNUAL MEAN	696		572		301
HIGHEST ANNUAL MEAN					1002	1993
LOWEST ANNUAL MEAN					50.9	1989
HIGHEST DAILY MEAN	6380	Oct 19	6380	Oct 19	25800	Jul 25 1993
LOWEST DAILY MEAN	27	Sep 9	13 A	Sep 25, 26	1.7 B	C
ANNUAL SEVEN-DAY MINIMUM	34	Sep 3	15	Sep 20	2.1	Sep 17 1940
INSTANTANEOUS PEAK FLOW			7280	Oct 18	34600 D	Jul 8 1982
INSTANTANEOUS PEAK STAGE			25.87	Oct 18	32.65 B	Jul 25 1993
INSTANTANEOUS LOW FLOW			14 E	Sep 21, 22
ANNUAL RUNOFF (CFSM)	1.61		1.32		.70
ANNUAL RUNOFF (INCHES)	21.88		17.98		9.47
10 PERCENT EXCEEDS	1470		1140		668
50 PERCENT EXCEEDS	501		368		129
90 PERCENT EXCEEDS	70		36		18

A - Estimated.
B - Observed.
C - Sept. 22, 23, 1940.
D - Gage height, 31.05 ft.
E - May have been less during periods of estimated record, Sept. 4-17 and 22-27.