Station list     Available data
ILLINOIS RIVER BASIN


05577500       SPRING CREEK AT SPRINGFIELD, IL



LOCATION.-- Lat 39°48'55", long 89°41'55", 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.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: January to September 1948, December 1948 to current year.
 

STAGE: Water years 1994-2001.

GAGE.-- Water-stage recorder, phone telemeter, 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.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 10,700 ft3/s, May 8, 1996, gage height, 16.23 ft; no flow for many days in most years.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 .19 20  23    e10  e330  216  59  38  91  24      .22 1.3  
2 .12 25  23    e11  e220  192  55  37  106  20      18      .67
3 .10 24  21    e11  e160  169  54  35  70  18      14      .51
4 3.9   22  21    e12  e130  152  50  31  220  18      3.1   .38
5 59      18  21    e12  e110  128  53  63  318  31      1.6   .21
 
6 14      60  18    e11  93  112  74  68  1260  14      .81 11     
7 11      48  23    e11  85  104  58  45  1590  11      .57 3.9  
8 7.7   33  23    e11  90  98  52  39  757  8.8   .65 .46
9 6.6   144  21    e10  209  89  51  33  299  7.3   .30 16     
10 6.2   139  19    e10  301  81  79  31  220  5.7   .09 1.9  
 
11 5.7   95  e22    e11  209  78  175  36  179  4.3   .02 .32
12 5.3   74  e21    e12  167  75  203  31  147  3.1   e.01 .11
13 4.5   99  e19    e15  145  75  156  26  121  3.2   e.01 .01
14 17      68  e18    e40  170  67  119  31  104  2.6   e.01 e.01
15 47      56  e17    97  199  79  105  31  94  2.0   e.01 e.01
 
16 19      53  e16    102  189  165  85  29  80  1.5   9.4   e.01
17 16      49  e15    66  153  189  69  26  68  6.4   1.8   e.01
18 16      42  e14    51  138  167  62  49  62  12      1.8   35     
19 16      41  e13    46  119  145  61  63  57  58      3.9   11     
20 18      40  e12    37  108  128  65  45  52  19      1.7   4.6  
 
21 18      36  e11    33  85  113  70  45  73  24      .66 20     
22 21      31  e10    30  79  101  61  40  55  9.9   5.0   2.0  
23 23      33  e9.6 28  76  91  60  34  48  18      107      1.0  
24 27      31  e9.2 28  377  82  50  32  43  13      33      .66
25 21      37  e8.6 24  839  72  47  30  39  5.2   12      .42
 
26 22      39  e8.6 26  678  69  44  52  36  3.9   6.5   .35
27 20      34  e8.9 26  338  66  42  33  33  2.5   3.4   .26
28 21      28  e9.0 29  254  63  41  29  30  1.6   1.8   .25
29 21      26  e9.4 e200  ---  63  38  25  28  1.1   1.3   .18
30 20      23  e9.6 e940  ---  61  37  24  26  .86 1.7   .15
 
31 17      ---  e10    e950  ---  59  ---  64  ---  .39 4.3   ---     

TOTAL 504.31 1468 483.9 2900 6051 3349 2175 1195 6306 350.35 234.66 112.68
MEAN 16.3 48.9 15.6 93.5 216 108 72.5 38.5 210 11.3 7.57 3.76
MAX 59 144 23 950 839 216 203 68 1590 58 107 35
MIN .10 18 8.6 10 76 59 37 24 26 .39 .01 .01
CFSM .15 .46 .15 .87 2.02 1.01 .68 .36 1.96 .11 .07 .04
IN. .18 .51 .17 1.01 2.10 1.16 .76 .42 2.19 .12 .08 .04
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2001, BY WATER YEAR (WY)
MEAN 21.9 29.5 54.4 58.0 85.3 110 128 122 96.3 42.8 26.2 20.5
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 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1948 - 2001
ANNUAL TOTAL 6271.42 25129.90
ANNUAL MEAN 17.1   68.8   66.8  
HIGHEST ANNUAL MEAN 156      1993
LOWEST ANNUAL MEAN 2.15 1954
HIGHEST DAILY MEAN 312          Jun 26 1590          Jun 7 5320      May 8 1996
LOWEST DAILY MEAN .01     A .01     B .00 C
ANNUAL SEVEN-DAY MINIMUM .01     Aug 28 .06     Aug 9 .00 Sep 1 1949
MAXIMUM PEAK FLOW 2240          Jun 6 10700      May 8 1996
MAXIMUM PEAK STAGE 11.16     Jun 6 16.23 May 8 1996
ANNUAL RUNOFF (CFSM) .16 .64 .62
ANNUAL RUNOFF (INCHES) 2.18 8.74 8.49
10 PERCENT EXCEEDS 40      152      153     
50 PERCENT EXCEEDS 5.9   30      21     
90 PERCENT EXCEEDS .30 .94 .02

A- Several days; Aug. 29-31, Sept. 1-10, 18 and 19, estimated.
B- Several days; Aug. 12-15, and Sept. 14-17, estimated.
C- Many days in most years.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data