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, 31.63 ft, Apr. 17; minimum, 18.85 ft, Sept. 28.
GAGE HEIGHT, FEET, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 19.27 19.52 19.72 19.72 21.04 23.20 27.71 27.30 24.60 28.00 19.67 19.68
2 19.43 19.43 19.81 19.56 20.93 22.86 28.15 27.58 24.24 28.15 19.60 19.49
3 19.32 19.37 19.78 19.46 20.79 22.60 28.77 27.53 23.82 28.13 19.48 19.27
4 19.31 19.47 19.50 19.70 20.85 22.44 29.67 27.42 23.39 28.02 19.46 19.25
5 19.38 19.73 19.40 19.98 20.90 22.28 30.22 27.16 23.05 27.79 19.78 19.20
 
6 19.43 19.57 19.50 20.29 21.01 22.16 30.36 26.61 22.60 27.54 20.11 19.21
7 19.33 19.46 19.56 20.65 --- 22.04 30.36 26.18 22.20 27.39 20.43 19.17
8 19.33 19.53 19.59 21.34 --- 22.22 30.20 26.08 22.10 27.40 20.77 19.12
9 19.27 19.36 19.60 21.99 --- 23.53 29.93 25.96 22.71 27.45 20.89 19.18
10 19.21 19.40 19.38 21.55 20.98 24.27 29.67 25.91 22.49 27.55 20.95 19.30
 
11 19.38 19.45 19.35 21.30 21.35 24.55 29.61 26.06 22.67 27.78 20.93 19.31
12 19.41 19.42 19.42 21.31 22.22 24.60 29.79 26.33 23.82 27.62 20.87 19.19
13 19.44 19.36 19.47 21.47 22.19 24.25 30.05 26.73 23.60 27.34 20.65 19.11
14 19.21 19.34 19.40 21.79 22.11 23.72 30.26 27.16 23.69 26.97 20.08 19.29
15 19.35 19.32 19.44 21.76 22.01 23.38 30.58 27.56 24.11 26.51 20.00 19.25
 
16 19.44 19.24 19.52 21.85 22.06 23.07 31.05 27.69 24.46 25.94 19.96 19.46
17 19.42 19.44 19.52 21.92 22.20 23.04 31.52 27.64 25.02 25.19 19.69 19.53
18 19.41 19.43 19.49 21.99 22.61 24.38 31.57 27.44 25.49 24.20 19.64 19.36
19 19.44 19.32 19.38 21.92 22.60 25.17 31.24 27.28 26.08 23.18 20.02 19.24
20 19.43 19.41 --- 21.97 22.41 26.20 30.69 27.22 26.39 22.52 20.09 19.17
 
21 19.40 19.24 --- 21.87 22.39 27.25 30.04 27.11 27.05 22.03 19.83 19.11
22 19.46 19.24 --- 21.74 22.32 27.81 29.49 27.32 27.94 21.56 19.62 19.14
23 19.51 19.23 19.27 21.69 22.32 27.98 29.01 27.81 28.63 21.22 19.45 19.07
24 19.58 19.34 19.45 21.64 22.30 27.77 28.60 27.72 28.89 21.13 19.47 19.19
25 19.46 19.26 19.37 21.52 22.27 27.61 28.24 27.34 28.80 20.99 19.54 19.14
 
26 19.50 19.06 19.39 21.48 22.30 27.54 27.88 27.16 28.54 20.88 19.52 19.16
27 19.28 19.32 19.52 21.31 23.16 27.49 27.53 26.95 28.17 20.43 19.50 19.13
28 19.37 19.42 19.60 21.25 23.50 27.65 27.23 26.48 27.72 19.86 19.59 19.09
29 19.35 19.43 19.55 21.16 --- 27.85 27.03 25.97 27.42 19.63 19.63 19.10
30 19.44 19.62 19.48 21.13 --- 27.78 27.11 25.55 27.66 19.85 19.80 19.07
 
31 19.56 --- 19.52 21.12 --- 27.64 --- 25.08 --- 19.88 19.82 ---

MEAN 19.39 19.39 --- 21.21 --- 24.98 29.45 26.88 25.24 24.58 19.96 19.23
MAX 19.58 19.73 --- 21.99 --- 27.98 31.57 27.81 28.89 28.15 20.95 19.68
MIN 19.21 19.06 --- 19.46 --- 22.04 27.03 25.08 22.10 19.63 19.45 19.07



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Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data