Station list     Available data
ILLINOIS RIVER BASIN


05536123       CHICAGO RIVER AT COLUMBUS DRIVE AT CHICAGO, IL

 

LOCATION.-- Lat 41°53'18", long 87°37'16" (NAD of 1927), in NE1/4SW1/4 sec.10, T.39 N., R.14 E., Cook County, Hydrologic Unit 07120003, on left downstream side of bridge within the Columbus Drive bridge structure in Chicago, 0.5 mi downstream from Chicago River Lock and Dam.

 

DRAINAGE AREA.-- Indeterminate.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: October 1996 to current year.

 

GAGE.-- Water-stage recorder, acoustical flowmeter and phone telemeter. Datum of gage is 579.48 ft above NGVD of 1929 (Chicago City datum).

 

REMARKS.-- This gaging station provides flow data to determine Illinois' diversion of Lake Michigan water. A U.S. Supreme Court Decree limits Illinois' diversion to an average of 3,200 ft3/s. Illinois' diversion includes water diverted from the lake for domestic water supply, for navigation, and water-quality improvement in the Chicago Sanitary and Ship Canal system, and stormwater runoff from a 673 mi2 diverted watershed area. Estimated daily discharges determined from regression relations between this site and flow data from the Metropolitan Water Reclamation District of Greater Chicago-Chicago River Controlling Works.

 

EXTREMES FOR PERIOD OF RECORD.-- Maximum daily discharge, 1,370 ft3/s, Aug. 6, 1997, minimum daily, -2,450 ft3/s, Feb. 21, 1997, due to regulation to prevent flooding.

 

REMARKS FOR CURRENT YEAR.--Records good except those for estimated daily discharges, which are fair.


Discharge, cubic feet per second, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1260   23   45   114     57     107   -59     43   270 455 596 353 
2263   104   11   70     60     168   -13     84   211 442 547 256 
3305   68   21   -0.9515     119   -1.1  47   397 433 449 422 
4200   34   -59   7.8  -85     115   -4.8  13   567 409 435 299 
5530   -3.1-20   0.49-9.1  -12   6.8  42   175 392 612 266 
 
6e194   -16   59   10     -0.9875   -40     32   173 279 470 311 
7e192   101   63   73     47     11   -59     60   156 284 450 241 
8e210   41   70   -20     5.5  127   -52     -34   162 314 435 238 
9e184   13   21   -2.5  -29     117   -0.33161   155 365 432 306 
10e201   65   31   7.4  82     89   -84     31   138 356 445 341 
 
1167   23   -27   13     -39     -32   -18     20   466 274 495 434 
12188   -24   -8.0-15     42     -6.726     71   315 275 570 145 
1387   -35   -38   130     28     35   37     85   265 296 816 e221 
1478   221   78   113     -26     -62   17     24   270 302 433 e233 
1531   204   -55   89     31     91   8.1  60   267 383 473 e243 
 
16134   67   -23   -13     80     -53   -15     84   236 433 473 e234 
1717   -50   56   88     101     -40   -3.9  48   266 306 377 e225 
18-43   -89   60   73     -51     93   -80     e43   201 378 293 212 
1954   -13   95   34     -56     -54   58     e39   257 522 576 336 
2016   49   71   106     0.36-11   79     66   318 409 399 121 
 
21108   42   13   18     102     75   234     3.2311 448 259 160 
22342   -22   -79   -7.9  62     65   76     -4.9282 440 158 131 
23239   -48   50   -12     -11     30   -42     104   314 560 510 227 
24120   -61   81   -18     -22     36   56     92   334 359 e395 113 
25-8.361   71   -88     48     -5.485     365   476 369 e415 79 
 
2639   -25   41   20     47     -12   20     38   291 454 372 149 
27-28   28   10   -2.1  38     -78   294     64   283 383 381 269 
28-70   29   22   -32     8.8  -77   81     34   373 501 368 108 
29105   43   79   3.5  ---     5.195     53   284 560 375 157 
3071   59   59   -72     ---     44   29     62   308 554 389 230 
 
31125   ---   35   -49     ---     31   ---     244   --- 550 375 --- 

TOTAL4210.7888.9833.0637.74525.58990.0729.772073.3852112485137737060
MEAN13629.626.920.618.831.924.366.9284403444235
MAX53022195130102168294365567560816434
MIN-70-89-79-88-85-78-84-3413827415879

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1997 - 2002, BY WATER YEAR (WY)
MEAN27410870.688.266.983.891.6172358549550457
MAX512225303352262275262406593883793840
(WY)199819971997199719971997199719971997199719971997
MIN12829.6-8.86-10.0-17.58.35-2.4940.3207322338235
(WY)200120022001200120002001200120002001200120012002

SUMMARY STATISTICSFOR 2001 CALENDAR YEARFOR 2002 WATER YEARWATER YEARS 1997 - 2002
ANNUAL TOTAL44677.9652727.99
ANNUAL MEAN122     144     240         
HIGHEST ANNUAL MEAN465         1997
LOWEST ANNUAL MEAN119         2001
HIGHEST DAILY MEAN786         Aug 19816         Aug 131370         Aug 6 1997
LOWEST DAILY MEAN-342         Aug 2-89         Nov 18-2450      AFeb 21 1997
ANNUAL SEVEN-DAY MINIMUM-54         Jan 8-35         Apr 5-108      AFeb 21 1997
10 PERCENT EXCEEDS355     426     585         
50 PERCENT EXCEEDS71     78     184         
90 PERCENT EXCEEDS-48     -27     -16         

A - Due to regulation to prevent flooding.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data