05587060 DATA: Stage Tables, 1999

Station list Available data
ILLINOIS RIVER BASIN

05587060 ILLINOIS RIVER AT HARDIN, IL

LOCATION.--Lat 39°09'37", long 90°36'55", in NW1/4NW1/4 sec.26, T.10 S., R.2 W., Calhoun County, Hydrologic Unit 07130011, on right bank at downstream side of bridge on State Highways 16 and 100 in Hardin, 1.6 mi downstream from Macoupin Creek and at mile 21.5.

DRAINAGE AREA.--28,690 mi², does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal, which has occurred since Jan. 17, 1900.

PERIOD OF RECORD.--October 1986 to current year (gage heights only). Gage-height record for February 1932 to Sept. 30, 1986, available in files of U.S. Army Corps of Engineers. Partial records from 1878 through 1880 available in files of U.S. Army Corps of Engineers.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 400.00 ft above sea level (levels by U.S. Army Corps of Engineers).

REMARKS.--U.S. Army Corps of Engineers satellite telemeter at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 42.40 ft, Aug. 3, 1993; minimum, 18.06 ft, Dec. 22, 1989.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum gage height, 38.2 ft Apr. 29, 1973; minimum observed, 7.33 ft, Oct. 7, 1879, from records of U.S. Army Corps of Engineers.

EXTREMES FOR CURRENT YEAR.--Maximum gage height, 29.76 ft, May 3; minimum, 18.53 ft, Oct. 18.

GAGE HEIGHT, FEET, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	19.01	19.90	19.65	19.26	24.72	21.57	20.21	29.27	26.89	22.56	19.92	19.65
2	19.24	20.26	19.79	19.39	24.95	21.58	20.12	29.61	26.83	23.01	20.10	19.66
3	19.25	20.97	19.68	19.51	24.93	21.35	20.34	29.68	26.77	22.84	20.12	19.51
4	19.24	21.30	19.73	19.54	24.94	21.39	20.44	29.48	26.50	22.29	19.92	19.49
5	19.27	20.81	19.73	19.54	25.01	21.44	20.45	29.22	26.33	21.86	19.61	19.41

6	19.48	19.69	19.72	19.90	24.95	21.52	20.33	29.07	26.19	21.71	19.46	19.41
7	19.48	19.08	19.89	19.86	25.53	21.68	20.20	29.00	25.99	21.58	19.64	19.36
8	19.32	19.17	20.48	19.89	26.30	21.61	20.24	28.91	25.82	21.42	19.84	19.51
9	19.23	19.82	20.08	19.80	26.27	21.65	20.03	28.67	25.60	21.21	19.89	19.42
10	19.57	20.33	19.48	19.89	25.85	21.53	20.47	28.13	25.32	20.71	19.58	19.36

11	19.43	20.91	19.81	19.95	25.24	21.43	20.74	27.27	25.08	20.34	19.42	19.29
12	19.19	20.82	20.11	19.90	24.88	21.48	20.64	26.40	25.03	20.16	19.68	19.15
13	19.19	20.76	19.99	19.91	24.75	21.50	20.86	25.87	25.07	20.17	19.63	19.34
14	19.24	20.55	19.95	19.94	24.60	21.52	21.01	25.38	24.99	20.10	19.73	19.25
15	19.33	20.29	19.93	20.00	24.44	21.33	21.42	25.19	24.90	19.83	19.84	19.33

16	19.22	20.19	19.76	20.06	24.34	21.37	23.08	25.37	24.93	19.73	19.78	19.22
17	19.34	20.14	19.70	20.04	24.12	21.28	24.70	25.77	25.07	19.69	19.88	19.31
18	19.21	20.34	19.71	19.98	23.97	21.14	25.53	26.35	25.20	19.63	19.73	19.27
19	19.42	20.28	19.56	20.01	23.81	21.34	26.30	26.89	25.31	19.71	19.66	19.40
20	20.26	20.16	19.56	20.00	23.63	21.44	26.93	27.44	25.33	19.81	19.46	19.08

21	20.79	20.13	19.55	19.76	23.29	21.44	27.21	27.83	25.30	20.19	19.63	19.40
22	20.64	20.11	19.36	20.32	23.03	21.39	27.23	27.95	25.19	20.17	19.55	19.13
23	20.34	19.94	19.49	22.25	22.85	21.54	27.16	27.91	24.97	19.77	19.59	19.20
24	20.00	19.81	19.25	22.68	22.57	21.69	27.07	27.78	24.63	19.37	19.67	19.21
25	19.86	19.98	19.13	22.45	22.29	21.57	27.05	27.72	24.25	19.25	19.70	19.18

26	19.62	19.77	19.03	22.48	22.18	21.46	27.39	27.72	23.79	19.25	19.77	19.19
27	19.68	19.82	19.29	22.68	22.03	21.33	27.76	27.64	23.35	19.23	19.69	19.17
28	19.64	19.72	19.19	22.97	21.77	21.30	28.05	27.51	22.99	19.44	19.88	19.16
29	19.85	19.75	19.04	23.37	---	21.17	28.42	27.37	22.71	19.51	19.79	19.37
30	19.97	19.85	19.01	23.71	---	21.00	28.82	27.25	22.51	19.57	19.79	19.72

31	19.93	---	19.09	24.23	---	20.76	---	27.07	---	19.68	19.79	---

MEAN	19.59	20.16	19.60	20.75	24.19	21.41	23.67	27.64	25.09	20.44	19.73	19.34
MAX	20.79	21.30	20.48	24.23	26.30	21.69	28.82	29.68	26.89	23.01	20.12	19.72
MIN	19.01	19.08	19.01	19.26	21.77	20.76	20.03	25.19	22.51	19.23	19.42	19.08

WTR YR 1999

MEAN 21.78

MAX 29.68

MIN 19.01