05495500 DATA: Discharge Tables, 2001

Station list Available data
BEAR CREEK BASIN

05495500 BEAR CREEK NEAR MARCELLINE, IL

LOCATION.-- Lat 40°08'34", long 91°20'14", on line between secs.20 and 21, T.2 N., R.8 W., Adams County, Hydrologic Unit 07110001, on right downstream side of bridge on County Road 900 E, 0.9 mi downstream from Grindstone Creek, 2.2 mi northeast of Marcelline, 3.8 mi upstream from State Highway 96, and at mile 12.3.

DRAINAGE AREA.-- 349 mi².

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

DISCHARGE: March 1944 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WSP 1308: 1944-45(M), 1948(M). WDR IL-75-1: Drainage area. WDR IL-94-1: 1991.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 504.52 ft above sea level. Prior to June 24, 1949, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 35,500 ft³/s, May 8, 1996, gage height, 28.36 ft; maximum gage height, 28.38 ft, Mar. 4, 1985; no flow for many days in 1953-56, 1962-64, 1976-77, 1988, and part of each day Aug. 17-19, 1989.

REMARKS FOR CURRENT YEAR.-- Records fair 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	4.5	6.1	9.1	e3.5	707	183	61	40	1450	18	3.6	103
2	4.4	6.8	8.9	e3.7	672	184	58	37	1640	16	5.0	36
3	4.0	6.3	8.2	e3.9	567	244	53	37	613	14	9.0	23
4	4.4	6.0	7.9	e4.0	319	248	50	50	1950	13	29	17
5	6.9	5.6	7.4	e4.2	168	186	47	58	1440	12	13	14

6	6.0	8.8	6.9	e4.3	116	124	458	65	5700	11	7.4	13
7	22	11	6.9	e4.3	164	103	219	1020	2650	9.7	5.3	14
8	12	11	6.9	e4.2	651	92	113	504	746	8.7	4.1	15
9	6.4	53	6.5	e4.1	6790	84	116	169	271	7.8	3.6	e45
10	4.2	140	6.5	e4.0	3660	75	121	99	181	7.0	3.8	e110

11	3.2	85	7.4	e3.9	844	73	1120	80	135	6.1	3.4	43
12	2.6	44	7.0	e3.8	341	76	1670	128	102	5.7	3.2	24
13	2.3	28	7.4	e4.0	252	81	419	66	80	5.3	3.1	17
14	2.6	20	7.2	e4.3	275	80	203	94	68	5.0	3.1	14
15	3.1	16	7.0	e4.7	616	327	240	479	73	4.5	2.9	12

16	2.9	14	e6.8	e5.2	274	3700	206	129	85	4.1	2.9	11
17	3.3	11	e6.3	e6.3	149	2350	124	158	60	3.8	2.6	9.9
18	3.3	11	e5.8	e5.8	e110	811	95	523	48	4.7	2.5	16
19	3.6	9.4	e5.4	e5.3	113	368	83	145	41	6.8	2.2	156
20	4.7	8.4	e4.9	e4.8	103	249	80	122	37	65	2.0	86

21	5.6	7.7	e4.3	e4.3	81	185	94	921	63	32	1.9	169
22	7.3	7.2	e3.8	e4.0	70	150	141	820	490	15	7.3	92
23	7.7	6.8	e3.5	e3.7	62	125	143	170	249	9.3	e7000	43
24	7.4	6.5	e3.2	e3.5	3360	104	88	92	83	6.8	e2000	32
25	7.3	6.4	e3.1	e3.3	5210	86	67	82	53	7.4	e700	26

26	6.9	7.0	e3.0	e3.2	1300	73	58	120	40	7.0	e300	21
27	6.9	7.1	e3.0	e3.1	401	67	53	182	32	9.3	e100	18
28	6.6	7.4	e3.1	e3.2	258	65	50	108	27	8.6	e50	14
29	6.4	8.6	e3.2	3630	---	64	46	71	23	6.1	e30	12
30	6.2	8.5	e3.3	5530	---	63	43	342	20	4.9	23	11

31	6.2	---	e3.4	2010	---	60	---	2060	---	4.2	293	---

TOTAL	180.9	574.6	177.3	11286.6	27633	10680	6319	8971	18450	338.8	10616.9	1216.9
MEAN	5.84	19.2	5.72	364	987	345	211	289	615	10.9	342	40.6
MAX	22	140	9.1	5530	6790	3700	1670	2060	5700	65	7000	169
MIN	2.3	5.6	3.0	3.1	62	60	43	37	20	3.8	1.9	9.9
CFSM	.02	.05	.02	1.04	2.83	.99	.60	.83	1.76	.03	.98	.12
IN.	.02	.06	.02	1.20	2.95	1.14	.67	.96	1.97	.04	1.13	.13

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1944 - 2001, BY WATER YEAR (WY)
MEAN	112	151	140	153	270	382	418	390	275	275	90.7	155
MAX	1658	2172	1485	956	1237	1370	2163	2679	2251	1967	541	1954
(WY)	1987	1986	1983	1946	1985	1985	1944	1995	1990	1993	1993	1970
MIN	.000	.000	.074	.31	.68	3.83	9.02	3.26	.72	.24	.17	.000
(WY)	1957	1957	1957	1977	1989	1956	1977	1989	1956	1988	1988	1953

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1944 - 2001
ANNUAL TOTAL	32012.5		96445.0
ANNUAL MEAN	87.5		264		232
HIGHEST ANNUAL MEAN					711	1993
LOWEST ANNUAL MEAN					12.5	1989
HIGHEST DAILY MEAN	5510	Jun 26	7000 A	Aug 23	20500	Mar 4 1985
LOWEST DAILY MEAN	1.4	Jun 10	1.9	Aug 21	.00	B
ANNUAL SEVEN-DAY MINIMUM	1.6	Jan 25	2.4	Aug 15	.00	Aug 19 1953
MAXIMUM PEAK FLOW			8990	Aug 23	35500 C	May 8 1996
MAXIMUM PEAK STAGE			15.18 D	Aug 23	28.38	Mar 4 1985
INSTANTANEOUS LOW FLOW			1.9	Aug 20-22
ANNUAL RUNOFF (CFSM)	.25		.76		.66
ANNUAL RUNOFF (INCHES)	3.41		10.28		9.02
10 PERCENT EXCEEDS	80		496		424
50 PERCENT EXCEEDS	8.4		23		23
90 PERCENT EXCEEDS	2.8		3.6		1.1

	A - Estimated
	B - Many days in 1953-56, 1962-64, 1976-77, 1988, and part of each day
	Aug. 17-19, 1989.
	C - Gage height, 28.36 ft.
	D - From floodmark.