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.
 

PARTIAL RECORD: Annual maximum, water years 1894 to 1919.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1975-97.
 

SEDIMENT: February 2003 to current year.
 

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, 2003-2005.

BIOLOGICAL
 

ALGAE: Water years 1989-90, 1996-97.
 

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

GAGE.-- Water-stage recorder, phone telemeter, automatic water sampler, and U.S. Army Corps of Engineers satellite telemeter. Datum of gage is 452.91 ft above NGVD of 1929 (452.71 ft NAVD 1988). 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. Suspended sediment samples were collected twice weekly with additionl samples during high-runoff periods by an automatic water sampler.
 

EXTREMES FOR PERIOD OF RECORD.--

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

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 307 mg/L, June 13, 2004; minimum daily, 6 mg/L, Jan. 28 - Feb. 6, 2004.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 43,400 tons, Jan. 14, 2005; minimum daily, 37 tons, Feb. 4, 2004.
 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Flood of May 6, 1892 reached an estimated discharge of 72,500 ft3/s, stage not determined. 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 fair except those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 4270  7130  25400  8980  9890  15500  13100  5270  3820  4020  3300  3860 
2 3880  12000  26900  13200  9280  14300  11400  5920  3960  1480  2700  2800 
3 3840  13900  25000  15200  9500  13300  11800  4700  3320  2870  2960  3570 
4 4110  16800  23100  27800  8600  12600  10400  6130  4900  2370  2420  3150 
5 2190  18300  20200  29900  9300  11600  9950  4230  4360  2240  2520  4170 
 
6 3150  16600  19800  28700  10500  11200  8610  5410  6640  2500  3070  2100 
7 3950  14800  25200  26200  12800  11300  8810  4140  5810  3170  2250  3640 
8 3640  12300  39800  24400  15600  10200  7560  5270  5280  1850  3130  3660 
9 3930  10600  38600  22000  18200  10900  7610  5020  5090  2620  2360  2300 
10 4320  8930  31800  20500  17000  9460  7460  4420  6680  2220  2070  3150 
 
11 3380  8690  27400  20000  17300  11100  7560  7160  4460  1270  4880  3530 
12 3690  6730  23800  29000  14700  9530  7550  6340  4730  2950  2690  2300 
13 3720  6630  20000  56900  15200  9940  11400  5030  4020  2660  4690  2950 
14 3910  6760  17100  78300  23200  9620  11600  5350  4220  2050  4040  2320 
15 3890  6320  14300  67400  35000  9280  10700  5640  5230  2960  5580  3060 
 
16 3640  5540  13200  55200  35000  8290  8750  4350  3260  1270  5180  4220 
17 4680  5420  12000  46000  32000  8550  9480  4990  5020  2800  4110  4830 
18 4310  5270  10600  36800  26900  8340  7940  4080  3360  1730  4860  4800 
19 2080  7200  11200  30200  23400  8360  6210  7340  3860  2380  5440  3100 
20 3880  7820  8870  25400  20700  7550  7380  8670  3460  3230  7000  4670 
 
21 3840  8720  9450  21000  20000  8520  7190  9170  3140  3490  7140  3140 
22 4260  7250  7750  18000  18900  7280  9200  7970  2840  2880  6790  4190 
23 6190  8510  7090  14800  18600  7380  9170  6180  3510  4090  4400  2990 
24 7070  7310  6680  15500  17400  7570  9800  5620  1630  2660  4370  5010 
25 6890  10400  e6350  14800  16400  9320  9680  4570  3450  4600  3550  4330 
 
26 5320  10300  e6000  14400  15600  10300  9390  5500  2460  5040  3240  3620 
27 6150  15600  5660  13000  15200  10300  7680  4070  3170  7060  2510  4240 
28 5960  23400  5900  11800  15300  10900  7750  4210  2570  6450  3200  5630 
29 4280  24600  6420  11600  ---  9280  7070  4140  3230  3720  3900  7200 
30 4960  22100  7120  11300  ---  9570  6430  3290  1870  4160  2190  5900 
 
31 5880  ---  8080  10700  ---  12700  ---  3800  ---  3930  3570  --- 

TOTAL 135260 335930 510770 818980 501470 314040 268630 167980 119350 96720 120110 114430
MEAN 4363 11200 16480 26420 17910 10130 8954 5419 3978 3120 3875 3814
MAX 7070 24600 39800 78300 35000 15500 13100 9170 6680 7060 7140 7200
MIN 2080 5270 5660 8980 8600 7280 6210 3290 1630 1270 2070 2100
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1920 - 2005, BY WATER YEAR (WY)
MEAN 7463 8498 9683 10050 11740 14900 15960 13730 11790 9251 7758 7584
MAX 21050 24180 30100 28430 25970 41290 33180 35180 25940 21020 19220 22770
(WY) 1927 1986 1983 1993 1997 1979 1922 1943 1993 1957 1924 1993
MIN 3155 2278 3551 2899 2906 4748 6516 5419 3978 3120 3875 3345
(WY) 2003 2000 2003 2003 2003 2003 1986 2005 2005 2005 2005 1999

SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1920 - 2005
ANNUAL TOTAL 3834450  3503670     
ANNUAL MEAN 10480  9599      10690         
HIGHEST ANNUAL MEAN 17850          1993
LOWEST ANNUAL MEAN 5583          1964
HIGHEST DAILY MEAN 50600      Jun 13 78300          Jan 14 89600          Feb 22 1997
LOWEST DAILY MEAN 2080      Oct 19 1270          Jul 11,16 461      A Nov 21 2002
ANNUAL SEVEN-DAY MINIMUM 3510      Sep 30 2200          Jul 10 1990      B Jan 9 1999
MAXIMUM PEAK FLOW 81400          Jan 14 95000          Feb 22 1997
MAXIMUM PEAK STAGE 24.88     Jan 14 26.85 C Feb 22 1997
INSTANTANEOUS LOW FLOW 488          D
10 PERCENT EXCEEDS 22100  20600      19400         
50 PERCENT EXCEEDS 7870  6640      8840         
90 PERCENT EXCEEDS 4170  2860      4420         

A - Due to temporary dam closure.

B - Estimated due to backwater from ice.

C - Present datum.

D - Sept. 9, 10, 12.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data