Station list     Available data
ILLINOIS RIVER BASIN


05550000       FOX RIVER AT ALGONQUIN, IL

 

LOCATION.-- Lat 42°09'59", long 88°17'25" (NAD of 1927), in NE1/4NW1/4 sec.34, T.43 N., R.8 E., McHenry County, Hydrologic Unit 07120006, on right bank 20 ft upstream from bridge on State Highway 62 (Algonquin Road) in Algonquin, 140 ft upstream from Algonquin Dam, and at mile 81.6.

 

DRAINAGE AREA.-- 1,403 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: October 1915 to current year. Monthly discharge only for some periods, published in WSP 1308.

 

STAGE: Water years 1994 to current year.

 

REVISED RECORDS.-- WSP 1175: 1916. WDR IL-75-1: Drainage area.

 

GAGE.-- Water-stage recorder, phone telemeter, and concrete dam with adjustable gate. Datum of gage is 729.48 ft above NGVD of 1929. Prior to Oct. 20, 1933, nonrecording gage at site 20 ft downstream at same datum.

 

REMARKS.-- Flow regulated by gate in Algonquin Dam, Stratton Lock and Dam (previously known as McHenry Dam), 16 mi upstream from station, and occasionally affected by wind action.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 6,610 ft3/s, April 6, 1960 and April 2, 1979; maximum gage height, 4.50 ft, April 1, 1916; from graph based on gage readings; no flow, Nov. 26, 1952, Nov. 20, 1953, Oct. 25, 1956 and Sept. 9, 14, 1958, result of windstorm.

 

REMARKS FOR CURRENT YEAR.-- Records fair except those for June 18 to Sept. 30 and those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1382 430 415 1060 306 231 544 613 707 385 347 151 
2629 438 443 899 310 232 628 839 697 371 383 140 
31010 450 435 465 309 229 650 905 720 332 405 104 
41010 482 437 406 307 237 726 890 718 336 469 121 
51040 485 428 416 306 241 828 1200 676 386 449 103 
 
6971 477 425 407 305 233 880 1770 650 421 429 90 
7952 441 422 381 303 231 994 1980 618 482 446 95 
8732 363 415 410 298 237 779 1870 613 583 461 108 
9684 379 410 430 297 231 754 1850 641 695 432 114 
10587 441 404 406 297 238 698 1980 589 686 385 111 
 
11556 481 379 331 292 237 690 1800 680 703 388 103 
12534 465 369 384 289 257 743 1990 699 745 385 95 
13512 449 369 403 279 250 700 2000 681 722 350 111 
14477 475 369 404 267 251 616 2000 670 685 309 140 
15489 534 376 403 247 264 548 1910 652 870 237 145 
 
16489 518 378 403 229 270 787 1770 606 1050 220 136 
17445 447 372 398 223 284 890 1660 532 1030 222 137 
18415 e560 382 392 213 310 723 1560 513 1080 203 158 
19442 e1400 404 392 196 302 538 1230 911 984 186 147 
20461 e1400 378 392 191 331 420 1130 725 858 162 143 
 
21449 e1400 402 384 189 411 492 1120 482 841 139 134 
22466 e1200 383 357 225 478 602 974 421 739 186 142 
23475 e920 347 348 228 476 589 747 398 649 160 131 
24469 e910 378 342 231 466 577 731 381 569 106 124 
25500 e860 389 339 231 526 587 740 364 442 119 141 
 
26638 798 384 341 231 542 429 713 363 324 126 134 
27684 704 419 338 231 550 290 677 345 400 159 136 
28658 467 576 335 231 530 309 606 380 453 125 160 
29551 426 612 312 --- 590 356 526 383 414 131 147 
30512 477 616 299 --- 571 392 500 392 366 146 128 
 
31463 --- 720 304 --- 547 --- 719 --- 340 135 --- 

TOTAL186821927713236128817261107831875939000172071894184003829
MEAN6036434274162593486251258574611271128
MAX10401400720106031059099420009111080469160
MIN38236334729918922929050034532410690
CFSM0.430.460.300.300.180.250.450.900.410.440.190.09
IN.0.500.510.350.340.190.290.501.030.460.500.220.10

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1916 - 2003, BY WATER YEAR (WY)
MEAN628819783718882164117081166861608469507
MAX365024923105267536134162496137863610290229642926
(WY)198719861983196019381918199319732000193819241972
MIN31.814718514216827423715011057.731.452.9
(WY)195719541940194019401934193419341934193419341934

SUMMARY STATISTICSFOR 2002 CALENDAR YEARFOR 2003 WATER YEARWATER YEARS 1916 - 2003
ANNUAL TOTAL318019     188256     
ANNUAL MEAN871     516     898         
HIGHEST ANNUAL MEAN1936         1993
LOWEST ANNUAL MEAN202         1934
HIGHEST DAILY MEAN3780         Jun 72000         May 13,146610         Apr 2 1979
LOWEST DAILY MEAN157         Jul 26-2890         Sep 612         A
ANNUAL SEVEN-DAY MINIMUM181         Jul 24102         Sep 619         Oct 16 1956
MAXIMUM PEAK FLOW2040         May 10,12-146610         B
MAXIMUM PEAK STAGE2.28    May 10,12-144.50 CApr 1 1916
INSTANTANEOUS LOW FLOW62         Aug 240.00    D
ANNUAL RUNOFF (CFSM)0.620.370.64    
ANNUAL RUNOFF (INCHES)8.434.998.70    
10 PERCENT EXCEEDS1710     907     2020         
50 PERCENT EXCEEDS619     425     604         
90 PERCENT EXCEEDS346     155     192         

A - Aug. 30, 31, 1934; July 28, 1942.

B - Apr. 6, 1960; Apr. 2, 1979.

C - From graph based on gage readings.

D - Nov. 26, 1952; Nov. 20, 1953; Oct. 25, 1956 and Sept. 9, 14, 1958; result of windstorms.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data