Station list     Available data
ILLINOIS RIVER BASIN


05536121                         CHICAGO RIVER AT CHICAGO LOCK AND DAM AT CHICAGO, IL



LOCATION.--Lat 41°53'18", long 87°36'27", in NE1/4SE1/4 sec.10, T.39 N., R.14 E., Cook County, Hydrologic Unit 07120003, 0.2 mi east of Lake Shore Drive in Chicago, on left downstream side of lock guidewall, 100 ft downstream of the river-side lock gates at the Chicago River Lock and Dam.

DRAINAGE AREA.--Indeterminate.

PERIOD OF RECORD.--August 1997 to current year.

GAGE.--Water-stage recorder. Datum of gage is 579.48 ft above sea level (Chicago City datum).

REMARKS.--Gage provides stage data to determine Illinois' diversion of Lake Michigan water. Gage-height telemeter at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 4.14 ft, Aug. 16, 1997; minimum, -2.72 ft., Aug. 6, 1998.

EXTREMES FOR CURRENT YEAR.--Maximum gage height, 0.47 ft, May 7; minimum, -2.72 ft, Aug. 6.
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 -1.74 -1.61 --- --- -1.75 --- -1.72 -1.79 -1.63 -1.73 -1.61 ---
2 -1.69 -1.78 --- --- -1.63 --- -1.73 -1.75 -1.71 -1.66 -1.64 ---
3 -1.62 -1.67 --- --- -1.73 --- -1.69 -1.88 -1.67 -1.60 -1.71 ---
4 -1.59 -1.69 --- --- -1.76 --- -1.64 -1.71 -1.73 -1.42 -1.31 ---
5 -1.64 -1.73 --- --- -1.83 --- -1.73 -1.69 -1.73 -1.49 -1.68 ---
 
6 -1.61 -1.71 --- --- -1.82 --- -1.80 -1.81 -1.65 -1.69 -1.88 ---
7 -1.56 -1.69 --- --- -1.76 --- e-1.66 -.57 -1.85 -1.62 -1.45 ---
8 -1.54 -1.71 --- --- -1.81 --- --- -.77 -1.70 -1.59 -1.78 ---
9 -1.47 -1.72 --- --- -1.78 --- --- -1.62 -1.60 -1.54 -1.48 ---
10 -1.64 -1.73 --- --- -1.83 -1.42 --- -1.60 -1.63 -1.67 -1.62 ---
 
11 -1.60 -1.73 --- --- -1.87 -1.51 --- -1.66 -1.71 -1.67 -1.56 ---
12 -1.59 -1.66 --- --- -1.68 -1.63 --- -1.61 -1.70 -1.66 -1.60 ---
13 -1.72 -1.75 --- --- -1.78 -1.60 --- -1.73 -1.52 -1.58 -1.72 e-1.95
14 -1.72 -1.70 --- -1.79 -1.67 -1.59 --- -1.74 -1.72 -1.61 -1.67 -1.86
15 -1.69 -1.57 --- -1.80 -1.71 -1.72 --- -1.82 -1.78 -1.52 -1.49 -1.94
 
16 -1.76 -1.76 --- -1.78 -1.80 -1.68 --- -1.70 -1.66 -1.64 -1.70 -1.86
17 -1.72 -1.63 --- -1.73 -1.73 -1.63 --- -1.85 -1.69 -1.58 -1.65 -1.93
18 -1.72 -1.74 --- -1.81 -1.54 -1.67 --- -1.69 -1.72 -1.53 -1.61 -1.81
19 -1.65 -1.61 --- -1.78 e-1.56 -.98 --- -1.73 -1.66 -1.57 -1.67 -1.98
20 -1.79 --- --- -1.76 --- -1.58 --- -1.72 -1.59 -1.58 -1.68 -1.91
 
21 -1.69 --- --- -1.81 --- -1.29 --- -1.81 -1.76 -1.77 -1.60 -1.95
22 -1.68 --- --- -1.82 --- -1.27 --- -1.76 -1.65 -1.67 -1.53 -1.92
23 -1.77 --- --- -1.74 --- -1.72 e-1.74 -1.77 -1.69 -1.50 -1.48 -1.91
24 -1.71 --- --- -1.90 --- -1.64 -1.67 -1.64 -1.67 -1.77 e-1.52 -1.94
25 -1.72 --- --- -1.82 --- -1.73 -1.72 -1.75 -1.55 -1.63 --- -1.91
 
26 -1.74 --- --- -1.77 --- -1.62 -1.80 -1.75 -1.38 -1.80 --- -1.81
27 -1.27 --- --- -1.73 --- -1.62 -1.73 -1.79 -1.49 -1.54 --- -1.88
28 -1.58 --- --- -1.74 --- -1.67 -1.72 -1.65 -1.63 -1.62 --- -2.00
29 -1.60 --- --- -1.74 --- -1.61 -1.78 -1.79 -1.62 -1.68 --- -1.95
30 -1.64 --- --- -1.81 --- -1.63 -1.80 -1.72 -1.63 -1.66 --- -1.96
 
31 -1.57 --- --- -1.74 --- -1.80 --- -1.78 --- -1.63 --- ---

MEAN -1.65 --- --- --- --- --- --- -1.67 -1.66 -1.62 --- ---
MAX -1.27 --- --- --- --- --- --- -.57 -1.38 -1.42 --- ---
MIN -1.79 --- --- --- --- --- --- -1.88 -1.85 -1.80 --- ---

e Estimated



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Introduction

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Surface-Water Data

Ground-Water Data

Meteorological Data

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