05536105 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05536105 NORTH BRANCH CHICAGO RIVER AT ALBANY AVENUE AT CHICAGO, IL

LOCATION.-- Lat 41°58'27", long 87°42'22", in NW1/4SW1/4 sec.12, T.40 N., R.13 E., Cook County, Hydrologic Unit 07120003, on right downstream side of bridge in West River Park in Chicago, 0.1 mi upstream from North Shore Channel, and at mile 43.4.

DRAINAGE AREA.-- 113 mi².

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

DISCHARGE: October 1989 to September 1998; June 2000 to current year.

STAGE: Water years 1998; 2000-2001.

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 580.67 ft above sea level.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,360 ft³/s, Feb. 21, 1997, gage height 6.81 ft; minimum discharge, 3.6 ft³/s, Aug. 5,6, 1993.

REMARKS FOR CURRENT YEAR.-- Records good.

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	46	25	49	e38	319	205	106	74	345	34	15	152
2	39	26	48	e38	236	167	92	72	469	29	611	56
3	30	30	44	e37	209	141	80	67	258	29	415	40
4	357	26	43	e35	126	120	68	64	158	28	120	42
5	174	24	39	e34	92	94	53	59	214	25	65	38

6	146	23	e35	e34	77	71	137	53	278	24	48	48
7	99	173	e32	e35	61	54	112	61	181	197	41	239
8	81	121	e33	e37	91	56	83	68	127	158	34	88
9	60	271	e30	e38	918	42	97	66	101	90	48	71
10	49	473	28	e38	1220	38	101	58	101	58	196	82

11	44	276	27	e38	1010	54	90	346	74	50	133	57
12	38	183	86	e50	669	70	246	533	365	42	66	45
13	34	176	e70	e74	380	128	225	365	381	37	46	43
14	30	148	e62	119	306	118	150	246	197	33	38	38
15	28	101	e52	156	298	178	146	389	199	30	33	33

16	32	85	e45	226	247	463	123	317	134	27	123	28
17	29	67	e39	196	170	449	97	260	116	56	116	29
18	32	52	e36	168	e130	423	86	185	144	143	80	47
19	30	45	e37	132	e110	420	78	124	120	81	134	704
20	28	40	e50	104	96	402	108	91	78	58	238	820

21	27	36	e43	94	87	406	216	89	86	54	123	1040
22	27	42	e40	80	82	380	193	86	81	121	126	741
23	26	36	e40	66	61	334	210	72	70	236	499	581
24	33	29	e41	48	153	278	339	70	65	72	495	590
25	47	28	e41	e43	609	221	188	69	64	444	514	532

26	34	52	e39	e40	541	160	124	91	60	115	365	405
27	28	57	e38	e36	326	120	101	322	55	35	221	303
28	34	51	e37	e33	251	95	87	328	52	26	127	219
29	30	50	e38	42	---	82	78	213	44	20	87	170
30	26	51	e38	338	---	74	73	164	39	19	169	124

31	26	---	e37	411	---	64	---	147	---	15	1140	---

TOTAL	1744	2797	1317	2858	8875	5907	3887	5149	4656	2386	6466	7405
MEAN	56.3	93.2	42.5	92.2	317	191	130	166	155	77.0	209	247
MAX	357	473	86	411	1220	463	339	533	469	444	1140	1040
MIN	26	23	27	33	61	38	53	53	39	15	15	28
CFSM	.50	.83	.38	.82	2.80	1.69	1.15	1.47	1.37	.68	1.85	2.18
IN.	.57	.92	.43	.94	2.92	1.94	1.28	1.70	1.53	.79	2.13	2.44

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2001, BY WATER YEAR (WY)
MEAN	84.0	133	91.0	122	169	194	207	189	153	104	123	94.9
MAX	205	266	175	280	394	288	514	446	332	189	342	247
(WY)	1992	1991	1992	1993	1997	1993	1993	1996	1996	1993	1990	2001
MIN	38.7	46.9	31.3	45.4	50.3	69.9	84.1	45.0	46.0	46.6	48.3	24.1
(WY)	1995	1997	1990	1994	1995	1996	1994	1992	1992	1991	1996	1994

SUMMARY STATISTICS	FOR 2001 WATER YEAR		WATER YEARS 1990 - 2001
ANNUAL TOTAL	53447
ANNUAL MEAN	146		138
HIGHEST ANNUAL MEAN			201	1993
LOWEST ANNUAL MEAN			95.2	1994
HIGHEST DAILY MEAN	1220	Feb 10	1990	Feb 22 1997
LOWEST DAILY MEAN	15	Jul 31, Aug 1	11	Oct 11 1992
ANNUAL SEVEN-DAY MINIMUM	26	Oct 31	14	Sep 16 1994
MAXIMUM PEAK FLOW	1620	Aug 31	2360	Feb 21 1997
MAXIMUM PEAK STAGE	6.01	Aug 31	6.81	Feb 21 1997
INSTANTANEOUS LOW FLOW	11	Jul 31	3.6	A
ANNUAL RUNOFF (CFSM)	1.30		1.22
ANNUAL RUNOFF (INCHES)	17.59		16.53
10 PERCENT EXCEEDS	365		320
50 PERCENT EXCEEDS	80		71
90 PERCENT EXCEEDS	30		28

A - Aug. 5, 6, 1993.