Station list     Available data
ILLINOIS RIVER BASIN


05543500       ILLINOIS RIVER AT MARSEILLES, IL

 

LOCATION.-- Lat 41°19'37", long 88°43'03" (NAD of 1927), in SE1/4SW1/4 sec.13, T.33 N., R.4 E., La Salle County, Hydrologic Unit 07120005, on right bank 0.5 mi downstream from Marseilles Dam in Marseilles, 6.9 mi upstream from Fox River, and at mile 246.5.

 

DRAINAGE AREA.-- 8,259 mi2, does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal, which has occurred since Jan. 17, 1900.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: October 1919 to current year. Prior to October 1939, published as "at Morris."

 

STAGE: Water years 1994 to current year.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1975-96.

 

SPECIFIC CONDUCTANCE: Water years 1975-81.

 

WATER TEMPERATURE: Water years 1975-81.

 

MISCELLANEOUS: Water Year 1998; Contaminants in streambed sediments, October 1996; contaminants in fish tissue, October 1996; sediment concentration and particle size, water years 1993-97, 2003.

 

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

 

GAGE.-- Water-stage recorder, phone telemeter, sediment sampler, and U.S. Army Corps of Engineers satellite telemeter. Datum of gage is 452.91 ft above NGVD of 1929. October 1919 to January 1935, nonrecording gage at site at Morris, 16.6 mi upstream, at datum 25.59 ft higher. January 1935 to September 1939, water-stage recorder 300 ft downstream from Morris site at that datum. October 1939 to September 2002, water-stage recorder at current site at datum 10 ft. higher.

 

REMARKS.-- Figures of daily discharge include flow through navigation locks. Flow regulated by powerplants and navigation dam above station. Since Jan. 17, 1900, flow has included diversion from Lake Michigan through Chicago Sanitary and Ship Canal.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 95,000 ft3/s, Feb. 22, 1997, gage height, 26.85 ft at current datum; minimum daily discharge, 461 ft3/s, Nov. 21, 2002.

 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: A stage of 26.2 ft at Morris occurred in 1831, discharge not determined, and a stage of 35.4 ft (ice jam) occurred at present site and datum on Jan. 21, 1916, estimated discharge, 40,000 ft3/s.

 

REMARKS FOR CURRENT YEAR.-- Records good.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
12320 2300 2190 2760 3470 3600 4200 14300 10200 3960 12300 7250 
24920 2610 2940 3290 3070 1860 4420 14300 9190 3910 12600 6050 
33540 2110 3230 4400 2130 3300 4460 14700 9300 5180 14000 7120 
45460 2590 2690 4250 3730 2760 8300 14200 7420 4060 14100 7610 
55230 2930 2140 3810 3310 3260 11800 18100 8540 5720 13200 7360 
 
65370 2160 2840 3590 3580 3150 12500 19000 7950 8020 11500 6620 
74820 2800 2740 3430 2790 2760 11400 18100 6230 12000 11200 5120 
83030 1930 3100 3230 3930 4830 12000 15400 8050 15900 10600 5670 
93980 3130 2980 4020 2650 3230 11600 23700 6480 19200 9480 4310 
102970 2270 1970 2560 3820 4390 11000 31300 7000 25200 8410 3840 
 
113430 2830 3530 3410 2130 3590 10500 32400 6350 29400 7800 4220 
123290 2230 2280 2660 3470 4450 8570 31800 6780 29200 8280 4630 
133460 3820 3000 2920 2310 4860 8000 26600 5790 28000 6650 3580 
142400 2220 2710 2770 3500 6610 8240 24100 7160 26000 7040 5820 
152460 3690 2310 3070 1980 5540 6160 20900 10300 29300 5910 4390 
 
163040 2700 3380 2730 3260 5200 6340 20200 10400 32600 5640 4860 
172730 3120 2170 2490 2320 5410 5280 18800 10000 29300 6450 3760 
183240 3180 6600 2420 1910 5090 5550 15300 10400 34000 5800 4370 
192520 2030 7120 2200 3440 5480 6350 13900 8880 36800 4230 4270 
203080 2480 6180 2640 2760 6040 4260 13800 6970 32900 5440 2730 
 
211510 461 4990 2800 1740 6360 4760 11700 7240 29100 4440 4820 
222980 2840 4190 1980 3640 6950 5360 10200 5720 32100 4910 3420 
232700 2830 4970 2080 1880 5310 4430 9270 6090 29200 4700 4440 
241820 3230 3800 3230 3570 5350 5420 8960 5240 24900 4860 3750 
252920 3120 4220 2730 2250 5720 4970 8010 4760 20700 4140 2480 
 
262410 2910 3140 2250 3040 5410 4570 7330 4090 16600 3330 5030 
272940 2840 3010 2670 2870 4970 4300 6370 4310 16800 5260 4700 
282250 2750 4070 2220 2820 6120 3890 7930 4810 22800 3430 5950 
292860 2890 3600 2650 --- 5150 4250 7830 4000 18600 4300 3850 
302040 2360 3080 2810 --- 5410 8070 9240 5150 14800 4390 4090 
 
312100 --- 4900 1810 --- 5020 --- 9550 --- 13300 4710 --- 

TOTAL97820793611100708988081370147180210950497290214800649550229100146110
MEAN31552645355128992906474870321604071602095073904870
MAX54603820712044003930695012500324001040036800141007610
MIN15104611970181017401860389063704000391033302480


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1920 - 2003, BY WATER YEAR (WY)
MEAN75438424959698991174014970161201385011770934577867630
MAX210502418030100284302597041290331803518025940210201922022770
(WY)192719861983199319971979192219431993195719241993
MIN315522783551289929064748651656494346468742423345
(WY)200320002003200320032003198619881988198819391999

SUMMARY STATISTICSFOR 2002 CALENDAR YEARFOR 2003 WATER YEARWATER YEARS 1920 - 2003
ANNUAL TOTAL3376481     2553481         
ANNUAL MEAN9251     6996         10710         
HIGHEST ANNUAL MEAN17850         1993
LOWEST ANNUAL MEAN5583         1964
HIGHEST DAILY MEAN76700         May 1336800             Jul 1989600         Feb 22 1997
LOWEST DAILY MEAN461  A    Nov 21461      A    Nov 21461      ANov 21 2002
ANNUAL SEVEN-DAY MINIMUM2320         Oct 282320             Oct 281990      BJan 9 1999
MAXIMUM PEAK FLOW38000             Jul 1995000         Feb 22 1997
MAXIMUM PEAK STAGE17.97        Jul 1926.85 CFeb 22 1997
10 PERCENT EXCEEDS18900     15000         19300         
50 PERCENT EXCEEDS5500     4430         8890         
90 PERCENT EXCEEDS2700     2320         4450         

A - Due to temporary dam closure.

B - Estimated due to backwater from ice.

C - Current datum.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data