Station list     Available data
KASKASKIA RIVER BASIN


05594450       SILVER CREEK NEAR TROY, IL

 

LOCATION.-- Lat 38°43'00", long 89°49'45" (NAD of 1927), 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.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1966 to current year.
 

STAGE: Water years 1994-2002.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.
 

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

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 438.91 ft above NGVD of 1929.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 10,600 ft3/s, April 12, 1979, gage height, 17.52 ft; maximum gage height, 17.94 ft, May 17, 1990, discharge, 9,170 ft3/s; no flow for several days in 1967-68, 1973, 1988.
 

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 3.0 11    432  e15  1180  e29  104  178  28    7.3 6.4 e4.5
2 2.9 11    174  e13  1630  e60  78  261  25    7.0 6.1 e4.0
3 3.1 10    71  e12  880  e270  64  345  22    6.6 5.9 e3.8
4 3.5 9.2 46  e11  267  e150  54  129  19    6.4 5.9 e3.6
5 5.2 9.6 35  e11  104  e68  48  70  17    6.3 5.7 e3.6
 
6 2.7 9.8 29  e11  74  e62  44  210  17    6.1 6.7 e3.5
7 2.3 9.5 25  e12  64  e55  42  1260  20    5.9 5.4 e3.5
8 2.4 9.5 23  e14  56  61  101  5420  20    6.1 5.4 e3.4
9 2.6 9.4 20  e16  47  445  297  4030  16    6.1 5.9 e3.4
10 31    8.9 18  e18  43  595  163  2280  15    6.7 6.0 e3.4
 
11 81    9.2 16  19  40  594  83  1470  150    6.9 63    e3.3
12 281    9.0 25  19  37  222  113  711  425    16    258    e3.3
13 201    8.6 112  19  34  108  319  2920  149    14    35    e3.2
14 308    8.5 332  19  30  78  172  4860  73    8.6 15    e3.1
15 138    8.7 427  18  29  109  90  2100  42    6.2 10    e3.1
 
16 200    8.5 487  17  28  321  72  890  29    6.0 8.0 e3.0
17 119    8.2 1220  17  26  201  52  425  22    5.5 6.9 16   
18 60    8.0 2070  15  24  99  42  613  18    33    11    154   
19 29    8.4 1510  16  34  102  41  592  15    19    102    101   
20 19    8.1 595  16  91  181  474  265  13    6.2 274    66   
 
21 13    7.7 178  17  118  183  907  122  11    5.5 61    46   
22 11    7.5 99  19  68  95  1200  88  9.6 5.6 21    23   
23 11    7.4 72  27  46  61  622  74  9.0 6.3 12    11   
24 22    43    52  31  38  51  176  60  9.2 5.8 8.6 7.5
25 77    64    41  26  34  320  109  52  14    5.7 23    6.4
 
26 96    47    32  23  e30  551  148  46  9.0 8.7 20    e5.0
27 51    34    e27  21  e28  709  354  41  8.4 11    10    e4.5
28 26    24    e23  20  e27  542  713  39  9.5 8.9 7.6 e4.0
29 18    51    e20  19  ---  403  811  42  15    6.8 6.5 e3.5
30 14    346    e18  64  ---  312  632  38  8.7 7.6 e5.6 e3.2
 
31 11    ---    e16  583  ---  169  ---  32  ---    6.7 e5.0 ---   

TOTAL 1844.7 814.7 8245 1158 5107 7206 8125 29663 1238.4 264.5 1022.6 506.8
MEAN 59.51 27.16 266.0 37.35 182.4 232.5 270.8 956.9 41.28 8.532 32.99 16.89
MAX 308 346 2070 583 1630 709 1200 5420 425 33 274 154
MIN 2.3 7.4 16 11 24 29 41 32 8.4 5.5 5.0 3.0
CFSM 0.39 0.18 1.73 0.24 1.18 1.51 1.76 6.21 0.27 0.06 0.21 0.11
IN. 0.45 0.20 1.99 0.28 1.23 1.74 1.96 7.17 0.30 0.06 0.25 0.12
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2002, BY WATER YEAR (WY)
MEAN 27.85 87.80 163.3 140.1 210.3 223.4 238.1 164.7 108.1 72.42 32.05 25.27
MAX 165 509 902 562 646 927 738 957 501 570 296 408
(WY) 1987 1985 1983 1974 1982 1978 1994 2002 1998 1969 1998 1993
MIN 0.23 0.34 0.42 0.31 9.25 6.74 13.4 5.26 0.91 1.44 0.75 0.093
(WY) 1972 1972 1977 1977 1978 1981 2000 1977 1988 1984 1971 1988

SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1967 - 2002
ANNUAL TOTAL 33785.0   65195.7  
ANNUAL MEAN 92.56 178.6   123.9      
HIGHEST ANNUAL MEAN 244          1983
LOWEST ANNUAL MEAN 23.1       1980
HIGHEST DAILY MEAN 2070          Dec 18 5420          May 8 7740          Apr 12 1979
LOWEST DAILY MEAN 1.5       Aug 20 2.3       Oct 7 0.00     A
ANNUAL SEVEN-DAY MINIMUM 1.8       Aug 14 3.1       Oct 3 0.00     Sep 29 1968
MAXIMUM PEAK FLOW 6980          May 13 10600      B Apr 12 1979
MAXIMUM PEAK STAGE 17.43     May 13 17.94 C May 17 1990
INSTANTANEOUS LOW FLOW 1.9       Oct 6, 7
ANNUAL RUNOFF (CFSM) 0.60 1.16 0.80    
ANNUAL RUNOFF (INCHES) 8.16 15.75 10.93    
10 PERCENT EXCEEDS 280      426      300         
50 PERCENT EXCEEDS 21      26      16         
90 PERCENT EXCEEDS 2.4   5.6   0.81    

A - Several days in 1967-68, 1973, 1988.

B - Gage height, 17.52 ft.

C - Discharge, 9,170 ft3/s.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data