Station list     Available data
ILLINOIS RIVER BASIN


05577500                   SPRING CREEK AT SPRINGFIELD, IL



LOCATION.--Lat 39°48'57", long 89°41'57", in NW1/4NE1/4 sec.30, T.16 N., R.5 W., Sangamon County, Hydrologic Unit 07130008, on right bank at downstream side of bridge on State Highways 125 and 97 (Jefferson Street), 0.1 mi east of intersection of State Highway 4 (Veterans Parkway) and State Highways 125 and 97 (Jefferson Street), in Springfield, and at mile 8.2.

DRAINAGE AREA.--107 mi2.

PERIOD OF RECORD.--January to September 1948, December 1948 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 524.65 ft above sea level. Prior to Dec. 22, 1948, and Mar. 24, 1981, to Mar. 30, 1983, nonrecording gage at same site and datum.

REMARKS.--Records fair except those for estimated daily discharges, which are poor. Gage-height telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 4.4   18  20    7.5 233  76  58  150  55    13      .55 1.6  
2 2.3   74  18    6.2 207  90  57  128  121    2.8   .13 .89
3 4.1   106  16    6.5 173  96  80  114  89    .92 .05 .80
4 2.8   109  16    e6.8 148  83  85  107  78    .33 .01 .70
5 6.5   42  17    7.0 122  83  64  132  158    .21 .01 .40
 
6 8.1   25  21    7.4 117  93  60  125  101    .34 e.01 .31
7 4.3   19  23    8.1 345  77  54  106  69    .11 .07 .51
8 2.5   18  17    8.9 461  75  57  94  55    .03 6.7   1.2  
9 1.9   18  14    e8.0 300  93  124  84  42    .01 2.1   .80
10 1.3   45  12    e7.6 211  97  87  77  33    e.01 1.0   .82
 
11 1.1   45  11    e7.4 189  97  67  74  32    e.01 .40 .85
12 .97 28  11    e7.2 165  130  59  96  57    e.01 16      .98
13 .67 27  11    e7.0 136  162  51  169  183    e.01 151      .98
14 .41 33  12    e6.8 120  154  52  149  215    e.01 15      .56
15 .33 26  12    e6.6 116  138  146  119  124    e.01 3.2   .39
 
16 1.4   34  11    e8.0 122  126  361  108  90    e.01 1.2   .35
17 9.2   72  11    e30    112  120  452  166  72    e.01 .76 .26
18 12      73  12    60    102  99  326  199  59    e.01 .56 .16
19 2.2   67  21    47    96  83  233  139  43    .04 .53 3.6  
20 2.8   40  14    37    87  78  192  113  33    .81 .79 .91
 
21 3.3   26  18    47    80  78  172  103  24    .10 1.0   .60
22 3.4   24  13    174    77  73  151  99  19    e.01 1.3   .60
23 2.4   21  9.6 324    80  70  129  85  15    .01 37      .51
24 1.9   19  8.8 315    81  67  108  77  18    1.2   23      .43
25 1.7   18  8.0 238    77  64  100  68  8.2 .88 3.6   .42
 
26 1.5   18  8.7 195    75  62  105  63  5.7 1.2   1.2   .37
27 5.6   18  11    205    85  61  118  59  5.7 17      2.4   .24
28 15      17  12    200    88  61  216  50  4.4 5.0   1.7   59     
29 25      17  12    152    ---  60  276  41  3.4 1.7   1.4   17     
30 15      20  10    131    ---  57  184  35  1.4 1.7   1.7   .57
 
31 11      ---  5.9 159    ---  56  ---  34  ---    1.2   2.1   ---     

TOTAL 155.08 1117 417.0 2431.0 4205 2759 4224 3163 1813.8 48.69 276.47 96.81
MEAN 5.00 37.2 13.5 78.4 150 89.0 141 102 60.5 1.57 8.92 3.23
MAX 25 109 23 324 461 162 452 199 215 17 151 59
MIN .33 17 5.9 6.2 75 56 51 34 1.4 .01 .01 .16
CFSM .05 .35 .13 .73 1.40 .83 1.32 .95 .57 .01 .08 .03
IN. .05 .39 .14 .85 1.46 .96 1.47 1.10 .63 .02 .10 .03

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 1999, BY WATER YEAR (WY)
MEAN 22.4 29.6 56.2 58.5 84.4 112 132 126 94.9 43.4 27.0 21.1
MAX 244 225 523 282 281 374 605 617 418 358 292 296
(WY) 1960 1986 1983 1950 1975 1978 1957 1996 1990 1981 1981 1993
MIN .000 .000 .000 .000 .22 .23 .66 .052 8.05 1.38 .016 .000
(WY) 1954 1954 1954 1956 1954 1954 1954 1954 1953 1976 1953 1952

SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1948 - 1999
ANNUAL TOTAL 37627.87 20706.85
ANNUAL MEAN 103      56.7   67.9  
HIGHEST ANNUAL MEAN 156      1993
LOWEST ANNUAL MEAN 2.15 1954
HIGHEST DAILY MEAN 1330          Jun 19 461          Feb 8 5320      May 8 1996
LOWEST DAILY MEAN .33     Oct 15 .01     A .00 B
ANNUAL SEVEN-DAY MINIMUM .88     Oct 10 .01     Jul 9 .00 Sep 1 1949
INSTANTANEOUS PEAK FLOW 497          Feb 8 10700      May 8 1996
INSTANTANEOUS PEAK STAGE 8.33     Feb 8 16.23 May 8 1996
INSTANTANEOUS LOW FLOW .01     C
ANNUAL RUNOFF (CFSM) .96 .53 .63
ANNUAL RUNOFF (INCHES) 13.08 7.20 8.62
10 PERCENT EXCEEDS 275      151      155     
50 PERCENT EXCEEDS 36      21      22     
90 PERCENT EXCEEDS 2.3   .42 .01
A - Several days; July 10-18, and Aug. 6, estimated.
B - Many days in most years.
C - Several days; July 9-19, 22-23, and Aug. 5-7, estimated.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data