Station list     Available data
KASKASKIA RIVER BASIN


05594450                   SILVER CREEK NEAR TROY, IL



LOCATION.--Lat 38°43'00", long 89°49'45", in SE1/4SW1/4 sec.12, T.3 N., R.7 W., Madison County, Hydrologic Unit 07140204, on right bank at upstream side of bridge on U.S. Highway 40, 0.2 mi upstream from railroad bridge, 1.9 mi upstream from East Fork Silver Creek, 1.9 mi southeast of Troy, and at mile 44.6.

DRAINAGE AREA.--154 mi2.

PERIOD OF RECORD.--October 1966 to current year.

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

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 438.91 ft above sea level.

REMARKS.--Records poor. Gage-height telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
16.213 23   e3.5973 143 41 130 e160 339   5.8e1.6  
25.8109 15   e3.51430 101 39 74 e130 386   4.3e1.5  
36.7390 13   e4.0913 94 49 54 e100 108   3.0e1.4  
46.4307 13   e4.5320 86 130 47 e80 40   2.7e1.3  
56.0125 15   e4.3162 81 213 115 e250 26   2.7e1.2  
 
622   65 19   e4.5120 95 681 320 e200 20   2.0e1.2  
710   43 21   e6.02570 86 608 204 e100 162   1.5e1.1  
86.336 15   e7.05150 110 291 95 e60 108   11   e1.1  
95.934 13   e6.02080 446 284 54 e90 58   4.2e1.0  
106.8166 13   e5.4963 479 253 40 e80 367   1.9e.95
 
115.5249 11   e5.0441 331 225 35 e35 199   1.6e.91
125.0202 8.4e5.5486 156 141 89 e100 42   1.7e1.1  
134.395 7.8e35   415 101 89 522 406 24   2.0e1.4  
143.564 7.2e32   202 82 64 533 462 18   1.9e1.2  
153.052 6.5e28   138 69 193 238 538 15   1.6e1.1  
 
162.845 6.1e25   125 61 414 105 396 12   1.5e1.0  
176.439 8.2e100   124 57 400 75 110 11   1.5e.94
1811   34 7.9e450   121 51 203 64 43 10   1.4e.90
1910   34 7.0578   106 47 118 49 32 9.01.6e.86
206.839 7.3553   94 44 88 41 27 7.51.7e.80
 
214.434 8.1491   91 43 76 34 23 7.41.8e.78
223.930 9.9613   87 41 70 31 21 6.51.8e.76
234.329 8.81000   80 307 61 30 19 5.62.0e.74
245.427 7.81320   81 314 50 31 44 4.62.6e.76
257.123 6.71080   86 132 45 29 47 4.42.5e.84
 
268.623 e5.0489   86 79 47 26 207 4.62.1e.90
278.023 e4.5228   144 61 60 22 437 4.52.1e.86
286.719 e4.2163   272 53 96 21 149 4.62.3e.84
2910   18 e4.0132   --- 49 190 20 42 10   e2.0e.82
3017   18 e3.8110   --- 45 218 19 27 11   e1.9e.80
 
3116   --- e3.7488   --- 43 --- 21 --- 8.9e1.7---     

TOTAL231.82385303.97974.21786038875437316844152033.678.430.66
MEAN7.4879.59.8025763812518110214765.62.531.02
MAX223902313205150479681533538386111.6
MIN2.8133.73.580413919194.41.4.74
CFSM.05.52.061.674.14.811.18.66.96.43.02.01
IN..06.58.071.934.31.941.31.771.07.49.02.01

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 1999, BY WATER YEAR (WY)
MEAN24.087.716914721423424814810064.826.024.1
MAX165509902562646927738827501570296408
(WY)198719851983197419821978199419951998196919981993
MIN.23.34.42.319.256.7416.75.26.911.44.75.093
(WY)197219721977197719781981198619771988198419711988

SUMMARY STATISTICSFOR 1998 CALENDAR YEARFOR 1999 WATER YEARWATER YEARS 1967 - 1999
ANNUAL TOTAL67523.2  47804.56    
ANNUAL MEAN185     131         123         
HIGHEST ANNUAL MEAN244         1983
LOWEST ANNUAL MEAN23.1      1980
HIGHEST DAILY MEAN2600         Mar 215150             Feb 87740         Apr 12 1979
LOWEST DAILY MEAN2.8      Oct 16.74 A    Sep 23.00    B
ANNUAL SEVEN-DAY MINIMUM4.4      Oct 11.79        Sep 19.00    Sep 29 1968
INSTANTANEOUS PEAK FLOW6210             Feb 810600      CApr 12 1979
INSTANTANEOUS PEAK STAGE16.89        Feb 817.94    May 17 1990
ANNUAL RUNOFF (CFSM)1.20.85    .80    
ANNUAL RUNOFF (INCHES)16.3111.55    10.88    
10 PERCENT EXCEEDS622     350         300         
50 PERCENT EXCEEDS39     31         15         
90 PERCENT EXCEEDS7.1  1.6      .75    
A - Estimated, but may have been less during periods of estimated discharges in Sept.
B - Several days in 1967-68, 1973, 1988.
C - Gage height, 17.52 ft.

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Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data