Station list     Available data
POPE CREEK BASIN


05467000       POPE CREEK NEAR KEITHSBURG, IL

 

LOCATION.-- Lat 41°07'44", long 90°55'09" (NAD of 1927), in SE1/4SE1/4 sec.11, T.13 N., R.5 W., Mercer County, Hydrologic Unit 07080104, on right bank at downstream side of bridge on County Road 900 E, 1.8 mi northeast of Keithsburg, and at mile 3.0.
 

DRAINAGE AREA.-- 174 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1934 to September 1986. Monthly discharge only for some periods, published in WSP 1308. Seven-month period (March to September), water years 1987-90. October 1990 to September 1996. October 1997 to current year.
 

STAGE: Water years 1994-1996;1998 to current year.
 

REVISED RECORDS.-- WSP 1508: 1935-37(M), 1938, 1939-43(M). WDR IL-81-1: Drainage area.
 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 524.07 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Aug. 1, 1975, nonrecording gage and crest-stage gage at site 1,000 ft upstream at same datum. Aug. 1, 1975 to Aug. 24, 1981, water-stage recorder at site 500 ft downstream at same datum.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,900 ft3/s, Apr. 22, 1973, gage height, 27.88 ft, from graph based on gage readings at site 1,000 ft upstream at same datum; maximum gage height, 29.25 ft, Feb. 9, 2001, estimated discharge, 3,250 ft3/s, ice jam; minimum daily discharge, 0.53 ft3/s, Aug. 6, 1989.
 

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 16  22  17  17    12    e13  21  4870  112  86  29    9.6
2 26  21  23  21    13    e12  18  2440  103  81  32    9.6
3 21  20  18  17    16    e12  17  771  104  78  27    9.4
4 105  21  19  17    14    e13  19  683  104  74  28    7.1
5 126  20  17  20    e12    e14  20  1800  96  70  25    6.2
 
6 44  20  16  18    e11    e12  17  1130  105  66  24    6.0
7 30  20  17  16    e10    e12  21  608  115  65  21    5.4
8 25  20  16  20    e9.4 e12  25  487  111  83  19    5.0
9 23  20  15  19    e9.0 e14  25  1490  104  115  17    4.9
10 22  20  16  13    e8.6 e13  23  1320  123  114  16    4.7
 
11 20  19  16  25    e8.3 12  21  830  119  89  15    4.5
12 19  19  17  13    e8.2 50  19  559  112  72  14    5.1
13 18  18  19  12    e8.1 237  17  440  102  63  14    15   
14 17  18  20  12    e8.0 274  16  382  94  58  14    25   
15 18  e18  21  11    e8.0 169  15  355  87  54  13    22   
 
16 17  e18  20  11    e8.0 144  13  321  80  51  12    13   
17 17  e18  21  11    e8.2 130  26  288  75  48  11    7.7
18 18  18  31  9.8 e8.7 94  54  262  72  46  10    6.2
19 17  18  52  9.4 e9.5 66  47  242  69  44  9.5 6.8
20 16  18  46  9.5 e11    54  56  224  64  43  8.9 6.9
 
21 16  17  34  9.5 e15    45  59  207  61  145  8.1 6.2
22 15  17  26  9.5 e22    37  48  190  59  57  7.4 7.9
23 15  17  18  e8.5 e38    31  40  181  57  49  6.9 7.4
24 18  16  22  e7.5 e34    26  36  171  55  41  6.6 9.8
25 25  16  20  6.6 e25    25  41  161  129  38  6.4 7.0
 
26 28  16  17  6.8 e18    23  38  150  219  35  6.4 6.7
27 24  15  17  7.3 e15    20  32  138  140  33  5.9 7.1
28 21  20  18  7.3 e14    27  31  134  118  35  5.7 6.5
29 20  21  19  7.4 ---    36  36  132  104  33  5.7 5.4
30 20  20  22  7.9 ---    29  198  129  94  31  5.5 5.0
 
31 22  ---  21  8.8 ---    24  ---  120  ---  29  6.6 ---   

TOTAL 839 561 671 388.8 382.0 1680 1049 21215 2987 1926 430.6 249.1
MEAN 27.1 18.7 21.6 12.5 13.6 54.2 35.0 684 99.6 62.1 13.9 8.30
MAX 126 22 52 25 38 274 198 4870 219 145 32 25
MIN 15 15 15 6.6 8.0 12 13 120 55 29 5.5 4.5
CFSM 0.16 0.11 0.12 0.07 0.08 0.31 0.20 3.93 0.57 0.36 0.08 0.05
IN. 0.18 0.12 0.14 0.08 0.08 0.36 0.22 4.54 0.64 0.41 0.09 0.05
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2003, BY WATER YEAR (WY)
MEAN 55.9 66.3 72.0 90.4 163 179 200 201 188 123 65.2 53.6
MAX 698 520 576 461 843 640 822 717 1020 1303 693 471
(WY) 1999 1999 1983 1974 2001 1993 1973 1996 1990 1982 1993 1980
MIN 2.40 2.96 2.63 2.74 5.29 19.1 11.4 7.68 10.9 1.24 2.75 1.82
(WY) 1964 1957 1965 1977 1964 1956 1956 1989 1936 1989 1989 1988

SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 1935 - 2003
ANNUAL TOTAL 62275      32378.5  
ANNUAL MEAN 171      88.7   123         
HIGHEST ANNUAL MEAN 399          1993
LOWEST ANNUAL MEAN 25.8       1940
HIGHEST DAILY MEAN 4420          May 12 4870          May 1 7030          Oct 18 1998
LOWEST DAILY MEAN 14          Sep 29, 30 4.5       Sep 11 0.53     Aug 6 1989
ANNUAL SEVEN-DAY MINIMUM 15          Sep 25 5.1       Sep 6 0.78     Aug 1 1989
MAXIMUM PEAK FLOW 5380          May 1 8900      A Apr 22 1973
MAXIMUM PEAK STAGE 29.11     May 1 29.25 B Feb 9 2001
INSTANTANEOUS LOW FLOW 4.0       Sep 12
ANNUAL RUNOFF (CFSM) 0.98 0.51 0.70    
ANNUAL RUNOFF (INCHES) 13.31 6.92 9.58    
10 PERCENT EXCEEDS 356      133      269         
50 PERCENT EXCEEDS 59      20      47         
90 PERCENT EXCEEDS 18      7.6   7.0      

A - Gage height, 27.88 ft., from graph based on gage readings at site 1,000 ft. upstream at same datum.

B - Ice jam, estimated discharge, 3,250 ft3/s.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data