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 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1350 100   45   2.3-11   e26   -44     51 328 379 622 494 
2202 77   55   -223   11   e24   -10     62 248 426 603 432 
3232 66   128   -9.8136   e29   -47     47 246 388 536 514 
4281 144   79   155   79   e72   -34     11 210 442 600 568 
5243 149   81   132   118   e31   51     22 277 396 574 559 
 
6381 114   41   140   100   e32   86     68 271 329 568 630 
7381 103   98   109   43   e27   93     125 274 409 486 505 
8333 121   54   23   80   e26   66     125 178 458 644 503 
9284 18   91   -16   37   e30   443     67 239 405 480 566 
10264 -4.299   -32   132   e26   35     30 516 399 624 448 
 
11262 112   88   -16   -22   e27   113     66 265 402 577 395 
12381 12   71   -86   5.4e25   -11     177 416 459 519 327 
13256 -22   103   -11   70   e25   -33     220 280 482 534 457 
14262 96   79   -4.234   e27   -0.33107 345 494 604 417 
15192 105   94   26   85   e25   50     58 307 544 540 350 
 
16254 74   87   49   e27   e21   243     113 300 549 572 312 
17293 71   90   -20   e29   e20   116     408 244 282 585 272 
18251 54   -2.340   e60   e20   3.1  188 259 548 443 249 
19265 234   33   63   e319   e23   -49     120 287 714 357 259 
20174 167   39   -4.7e30   e21   -77     112 310 607 555 338 
 
21168 56   58   -3.7e31   e24   121     165 347 525 514 236 
22152 71   -140   76   e29   e25   220     177 345 571 533 341 
23246 50   -262   225   e27   e111   130     177 320 420 498 339 
24256 24   -234   127   e27   e128   67     179 306 487 341 219 
25258 29   -98   124   e27   32   21     149 358 540 348 241 
 
26327 53   18   -20   e24   -24   -4.5  159 322 651 657 273 
27349 8.768   -51   e25   -5.446     178 320 535 541 218 
28408 61   59   53   e25   86   209     167 379 542 533 311 
29129 93   -10   -51   ---   152   106     154 358 680 530 280 
30496 225   -85   -1.6---   119   89     175 351 678 484 508 
 
31250 ---   32   -39   ---   40   ---     149 --- 783 470 --- 

TOTAL85802461.5858.7755.31577.41244.61998.2740069206155241647211561
MEAN27782.027.724.456.340.166.6129307501531385
MAX496234128225319152443408516783657630
MIN129-22-262-223-22-24-7711178282341218

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1997 - 1999, BY WATER YEAR (WY)
MEAN386170126176139149170279475725702587
MAX512225303352262275262406593883793840
(WY)199819971997199719971997199719971997199719971997
MIN27782.027.724.456.340.166.6129307501531385
(WY)199919991999199919991999199919991999199919991999

SUMMARY STATISTICSFOR 1998 CALENDAR YEARFOR 1999 WATER YEARWATER YEARS 1997 - 1999
ANNUAL TOTAL118759.3174244.77
ANNUAL MEAN325     203     
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN1160         Aug 6783         Jul 311370       Aug 6 1997
LOWEST DAILY MEAN-262         Dec 23-262         Dec 23-2450    AFeb 21 1997
ANNUAL SEVEN-DAY MINIMUM-88         Dec 20-88         Dec 20-108    AFeb 21 1997
10 PERCENT EXCEEDS796     531     807       
50 PERCENT EXCEEDS250     132     301       
90 PERCENT EXCEEDS32     -2.9  27       

A - Due to regulation to prevent flooding.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data