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, 0.49 ft, Jan. 23; minimum, -2.65 ft, Jan. 22.
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 -1.92 -1.95 -1.69 -1.76 -1.93 -1.80 -1.85 -1.65 -1.61 -1.79 --- ---
2 -2.01 -2.03 -1.74 -1.78 -1.77 -1.73 -1.79 -1.67 -1.35 -1.75 --- ---
3 -1.96 -2.06 -1.76 -1.60 -1.81 -1.57 -1.85 -1.70 -1.60 -1.83 --- ---
4 -1.94 -1.82 -1.67 -1.64 -1.82 -1.72 -1.78 -1.82 -1.66 -1.78 --- ---
5 -1.99 -1.76 -1.64 -1.95 -1.84 -1.88 -1.91 -1.88 -1.83 -1.80 --- ---
 
6 -1.89 -2.04 -1.65 -2.15 -1.95 -1.70 -1.82 -1.70 -1.91 -1.87 --- ---
7 -2.00 -1.80 -1.55 -2.24 -1.97 -1.73 -1.77 -1.68 -1.91 -1.90 --- ---
8 -1.88 -1.84 -1.68 -2.14 -1.95 -1.78 -1.77 -1.80 -1.86 -1.90 --- ---
9 -1.99 -1.89 -1.59 -2.15 -1.81 -1.78 -1.46 -1.92 -1.91 -1.88 --- ---
10 -1.84 -1.46 -1.66 -2.17 -1.81 -1.70 -1.70 -1.91 -1.89 -1.82 --- -1.86
 
11 --- -1.57 -1.59 -2.17 -1.89 -1.76 -1.76 -1.83 -1.78 -1.97 --- -1.78
12 --- -1.60 -1.62 -2.14 -1.69 -1.59 -1.66 -1.84 -1.95 -1.85 --- -1.72
13 -1.87 -1.65 -1.64 -2.17 -1.71 -1.59 -1.67 -1.80 -1.53 -1.79 --- -1.69
14 -1.96 -1.73 -1.72 -1.98 -1.79 -1.78 -1.71 -1.79 -1.66 -1.78 --- -1.71
15 -1.96 -1.79 -1.68 -1.95 -1.81 -1.80 -1.89 -1.67 -1.60 -1.79 --- -1.58
 
16 -1.93 -1.83 -1.70 -1.87 -1.78 -1.61 -1.72 -1.90 -1.64 -1.80 --- -1.40
17 -1.52 -1.90 -1.64 -1.91 -1.84 -1.58 -1.26 -1.87 -1.78 -1.90 --- -1.38
18 -1.57 -1.79 -1.68 -1.72 -1.91 -1.53 -1.71 -1.67 -1.84 -1.76 --- -1.40
19 -1.79 -1.67 -1.74 -1.96 -1.87 -1.70 -1.65 -1.76 -1.89 -1.87 --- -1.30
20 -1.78 -1.82 -1.78 -1.88 -1.84 -1.55 -1.68 -1.90 -1.89 -1.91 --- -1.44
 
21 -1.89 -1.94 -1.70 -1.95 -1.99 -1.60 -1.76 -1.83 -1.83 -2.08 --- -1.31
22 -1.89 -1.87 -1.82 -1.68 -1.88 -1.84 -1.61 -1.85 -1.91 --- --- -1.46
23 -1.86 -1.94 -1.71 -.47 -1.81 -1.83 -.71 -1.70 -1.88 --- --- -1.32
24 -1.74 -1.92 -1.70 -1.50 -1.88 -1.89 -1.38 -1.84 -1.77 --- --- -1.40
25 -1.80 -1.82 -1.80 -1.42 -1.79 -1.94 -1.47 -1.72 -1.78 --- --- -1.46
 
26 -2.03 -1.73 -1.65 -1.90 -1.77 -1.84 -1.60 -1.94 -1.82 --- --- -1.37
27 -1.86 -1.80 -1.62 -1.72 -1.71 -1.84 -1.51 -1.95 -1.91 --- --- -1.39
28 -1.85 -1.90 -1.57 -1.47 -1.61 -1.80 -1.35 -1.80 -1.91 --- --- -1.60
29 -1.88 -1.82 -1.61 -1.69 --- -1.88 -1.34 -1.83 -1.89 --- --- -1.77
30 -1.82 -1.63 -1.77 -1.82 --- -1.77 -1.64 -1.98 -1.98 --- --- -1.02
 
31 -1.83 --- -1.71 -1.91 --- -1.70 --- -1.83 --- --- --- ---

MEAN --- -1.81 -1.68 -1.83 -1.83 -1.74 -1.63 -1.81 -1.79 --- --- ---
MAX --- -1.46 -1.55 -.47 -1.61 -1.53 -.71 -1.65 -1.35 --- --- ---
MIN --- -2.06 -1.82 -2.24 -1.99 -1.94 -1.91 -1.98 -1.98 --- --- ---


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data