Station list     Available data
ILLINOIS RIVER BASIN


05552500       FOX RIVER AT DAYTON, IL



LOCATION.-- Lat 41°23'04", long 88°47'21", in SW1/4SE1/4 sec.29, T.34 N., R.4 E., La Salle County, Hydrologic Unit 07120007, on left bank under County Highway 18 bridge in Dayton, and at mile 5.2.

DRAINAGE AREA.-- 2,642 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: November 1914 to current year. Prior to April 1925, published as "at Wedron." Monthly discharge only for some periods, published in WSP 1308.

 

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-92 and 1996.


REVISED RECORDS.-- WSP 730: 1931. WSP 1208: 1930, 1935, 1939. WSP 1308: 1916(M), 1922(M), 1926-31(M), 1934-40(M), 1946-47(M). WDR IL-75-1: Drainage area. WDR IL-76-1: 1969.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 462.30 ft above sea level. Prior to Apr. 13, 1925, nonrecording gage at site 4.1 mi upstream at datum 496.80 ft above Memphis datum. Apr. 13, 1925, to Sept. 30, 1942, nonrecording gage at site 1,000 ft upstream at datum 7.70 ft below sea level. Oct. 1, 1942, to Apr. 10, 1951, nonrecording gage, and Apr. 11, 1951, to Sept. 30, 1978, water-stage recorder, at site 1.000 ft upstream at same datum. Oct. 1, 1978 to June 11, 1997, water-stage recorder at site 500 ft upstream at same datum.

REMARKS.-- Regulation by powerplant upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 55,400 ft3/s, July 19, 1996, gage height, 24.47 ft, from rating curve extended above 43,000 ft3/s; affected by dam failure 500 ft upstream from gage then in use. Maximum gage height, 36.47 ft, Jan. 25, 1960, ice jam; minimum daily discharge, 1.0 ft3/s, Aug. 29, 1934, when turbines were shut down; minimum daily with plant operating, 78 ft3/s, Oct. 29, 1956.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
12180 672 946 e740 e810 2950 1120 3000 7880 2500 2390 803 
22060 706 869 e720 e800 2830 1020 2840 6500 2260 2600 763 
31880 668 767 e720 e800 2690 970 2500 6040 3160 2270 741 
42100 671 851 e720 e800 2590 944 2150 5670 4550 1870 737 
52110 663 1320 e730 e800 2390 914 1850 5760 3890 1730 684 
 
61810 648 2090 e700 e800 2230 904 1720 5960 3480 1920 742 
71560 691 1630 e700 e800 2110 908 1620 5680 3550 2310 679 
81300 733 1420 e700 e800 1940 911 1550 5380 3450 2300 649 
9936 707 1360 e720 e800 1710 1170 1770 5080 3130 1920 587 
10942 737 1380 e710 e800 1270 1080 2300 4760 8180 1800 652 
 
11937 755 1330 e760 e800 1190 1030 2890 4530 10100 1640 636 
12881 894 1290 e800 e800 936 1060 3950 4810 6770 1560 1400 
13820 773 1250 e730 e800 961 1030 3860 5810 5400 1510 2330 
14781 829 1210 e700 e800 917 1010 3340 6680 4760 1430 1850 
15783 841 1260 e710 e800 922 971 3060 7040 4260 1340 1930 
 
16804 823 1180 e740 e810 909 970 2950 6820 3890 1290 1870 
17747 831 1190 e690 e810 888 1630 2910 6570 3410 1140 1780 
18802 820 1040 e650 e820 942 1980 2860 6360 3060 1380 1690 
19782 857 944 e600 e830 832 1710 3980 6090 2840 1200 1640 
20765 840 941 e550 e880 957 5970 4380 5890 2680 1110 1600 
 
21799 905 602 e560 e980 1140 8620 4210 5920 2380 1050 1760 
22798 938 e1000 e760 1150 1180 7390 4210 5260 2090 1020 2000 
23779 1040 e820 e800 1560 1050 5930 4290 4770 1800 991 2780 
24773 1110 e810 e810 2800 1190 5300 4270 4680 1540 1030 3260 
25812 1060 e800 e810 4020 1210 4750 4140 6610 1430 1120 3150 
 
26790 1080 e800 e810 3760 1190 4330 4020 6030 1280 1100 3120 
27679 1030 e800 e820 3570 1180 4020 4060 4660 1150 1010 3050 
28644 938 e780 e830 3340 1150 3770 4550 3810 1080 941 2950 
29705 1010 e780 e840 3140 1210 3520 4260 3270 1100 895 2850 
30693 938 e770 e830 --- 1270 3220 3990 2810 1250 853 2680 
 
31647 --- e740 e820 --- 1160 --- 4750 --- 1690 849 --- 

TOTAL330992520832970227804048045094781521022301671301021104556951363
MEAN1068840106473513961455260532985571329414701712
MAX218011102090840402029508620475078801010026003260
MIN644648602550800832904155028101080849587
CFSM.40.32.40.28.53.55.991.252.111.25.56.65
IN..47.35.46.32.57.631.101.442.351.44.64.72

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1915 - 2000, BY WATER YEAR (WY)
MEAN1121146814861475203832713287243719351277936975
MAX5239544476954941546111290915775756189598849095141
(WY)195519861983196019971979197919741996199619241972
MIN141329364335338412418217267174153186
(WY)195719541940194019341934193419341934193419341946

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1915 - 2000
ANNUAL TOTAL861095     746185         
ANNUAL MEAN2359     2039         1807         
HIGHEST ANNUAL MEAN3940         1993
LOWEST ANNUAL MEAN330         1934
HIGHEST DAILY MEAN12100         Apr 2410100             Jul 1146600         Jul 19 1996
LOWEST DAILY MEAN436         Sep 25550      A    Jan 201.0   BAug 29 1934
ANNUAL SEVEN-DAY MINIMUM479         Sep 16643             Jan 15120         Oct 8 1956
INSTANTANEOUS PEAK FLOW11200             Jul 1155400      CJul 19 1996
INSTANTANEOUS PEAK STAGE12.43        Jul 1136.47 DJan 25 1960
INSTANTANEOUS LOW FLOW171             Sep 8
ANNUAL RUNOFF (CFSM).89.77    .68    
ANNUAL RUNOFF (INCHES)12.1210.51    9.29    
10 PERCENT EXCEEDS5350     4700         4100         
50 PERCENT EXCEEDS1380     1180         1180         
90 PERCENT EXCEEDS669     730         376         
A - Estimated due to backwater from ice.
B - When turbines were shut down; lowest daily mean with plant operating, 78 ft3/s, Oct. 29, 1956.
C - Gage height, 24.47 ft, from rating curve extended above 43,000 ft3/s, affected by dam failure 500 ft. upstream from gage then in use.
D - Ice jam.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data