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 to current year.

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 fair except those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 2.0 3.5 23  98  e23  53  177    129    693    4.5 178    7.8
2 1.9 5.0 20  68  e34  50  97    183    287    4.4 53    4.5
3 1.9 4.6 19  61  e60  47  70    120    142    20    26    3.5
4 1.9 4.6 21  948  e54  204  58    59    112    112    16    e2.8
5 1.9 5.0 22  2350  e48  610  51    44    95    99    14    e2.3
 
6 1.9 9.7 22  2950  e44  1250  46    36    79    118    6.4 e2.0
7 1.8 8.8 22  1260  e40  987  44    29    60    278    4.3 e2.2
8 1.8 6.6 21  359  e38  251  42    20    59    114    3.9 e2.1
9 2.3 e5.5 18  113  e40  86  35    15    46    51    4.2 e1.9
10 3.4 e5.0 20  80  e62  64  30    9.6 45    23    3.5 e1.8
 
11 2.5 e4.6 22  66  e150  56  31    11    42    12    2.8 e1.8
12 2.4 e4.3 24  63  266  50  29    5.4 36    8.2 2.4 e1.7
13 2.3 e4.0 22  59  184  46  26    42    26    13    2.5 e1.7
14 5.4 e3.8 21  54  83  45  21    674    21    11    2.3 e1.8
15 4.1 e5.0 20  52  76  43  18    1120    20    5.0 2.3 e2.0
 
16 2.9 e4.5 23  48  87  42  17    2250    22    3.8 2.3 e2.5
17 17    e6.0 23  140  64  42  14    1350    22    3.7 2.3 e2.4
18 7.3 1590    24  490  65  41  12    266    115    3.3 2.3 e2.0
19 4.1 3220    22  551  119  38  11    347    191    3.1 2.3 e1.9
20 3.5 2480    19  252  210  36  9.5 555    60    2.8 4.1 e1.8
 
21 3.0 1090    18  e80  222  34  10    266    39    2.8 2.7 e1.9
22 3.2 266    18  e60  143  32  9.4 83    29    3.0 2.5 e1.9
23 3.9 87    86  e50  96  28  12    54    19    2.7 2.7 e2.5
24 3.5 160    255  e43  169  27  13    42    15    2.6 12    e2.4
25 3.5 197    135  e40  223  28  20    217    13    5.4 34    e2.1
 
26 3.5 83    70  e43  108  159  19    661    9.4 3.5 157    e1.9
27 3.4 53    53  e37  75  468  20    1780    7.6 2.9 186    e1.8
28 3.7 41    49  e32  63  617  13    4430    6.4 2.9 66    e1.8
29 3.9 32    320  e29  55  690  10    4200    5.3 2.7 207    e1.7
30 3.6 27    485  e27  ---  738  13    2440    4.8 375    90    e1.7
 
31 3.7 ---    313  e25  ---  538  ---    1160    ---    494    22    ---   

TOTAL 111.2 9416.5 2230 10528 2901 7400 977.9 22598.0 2321.5 1787.3 1116.8 70.2
MEAN 3.59 314 71.9 340 100 239 32.6 729 77.4 57.7 36.0 2.34
MAX 17 3220 485 2950 266 1250 177 4430 693 494 207 7.8
MIN 1.8 3.5 18 25 23 27 9.4 5.4 4.8 2.6 2.3 1.7
CFSM 0.02 2.04 0.47 2.21 0.65 1.55 0.21 4.73 0.50 0.37 0.23 0.02
IN. 0.03 2.27 0.54 2.54 0.70 1.79 0.24 5.46 0.56 0.43 0.27 0.02
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2004, BY WATER YEAR (WY)
MEAN 26.9 91.6 157 142 203 220 228 180 113 71.3 31.9 25.1
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 0.09
(WY) 1972 1972 1977 1977 1978 1981 2000 1977 1988 1984 1971 1988

SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1967 - 2004
ANNUAL TOTAL 36495.9     61458.4      
ANNUAL MEAN 100        168          124           
HIGHEST ANNUAL MEAN 244            1983
LOWEST ANNUAL MEAN 23.1         1980
HIGHEST DAILY MEAN 3220            Nov 19 4430              May 28 7740            Apr 12 1979
LOWEST DAILY MEAN 1.8         Oct 7, 8 1.7   A     Sep 12,13,29,30 0.00       B
ANNUAL SEVEN-DAY MINIMUM 1.9         Oct 2 1.8           Sep 9 0.00       Sep 29 1968
MAXIMUM PEAK FLOW 4680              May 28 10600        C Apr 12 1979
MAXIMUM PEAK STAGE 15.90         May 28 17.94   D May 17 1990
INSTANTANEOUS LOW FLOW 1.5           Oct 7
ANNUAL RUNOFF (CFSM) 0.649 1.09     0.803    
ANNUAL RUNOFF (INCHES) 8.82   14.85     10.91      
10 PERCENT EXCEEDS 183        315          300           
50 PERCENT EXCEEDS 19        26          16           
90 PERCENT EXCEEDS 2.6     2.3       0.88      

A - Estimated, but may have been less during periods of estimated discharges in September.

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

C - Gage height, 17.52 ft.

D - Discharge, 9,170 ft3/s.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data