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 2003 TO SEPTEMBER 2004
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 4.9 5.7 14  66  e35  90  182  88  752  68  19    17   
2 4.8 7.1 13  65  e36  85  163  86  475  69  18    14   
3 4.9 38    12  66  e37  74  148  107  398  83  18    13   
4 4.8 51    12  63  e39  73  136  163  332  73  36    11   
5 4.9 35    13  56  e43  290  125  148  292  67  31    10   
 
6 5.1 42    14  57  e50  330  119  128  263  98  21    9.4
7 4.8 43    14  e62  e46  233  113  120  242  77  18    8.5
8 4.6 25    14  e70  e42  182  107  160  215  63  15    7.7
9 4.6 17    17  e64  e37  152  98  159  193  57  13    7.4
10 6.5 14    e348  e60  e35  132  90  138  206  76  12    7.2
 
11 5.5 13    e772  e58  e33  118  85  185  370  65  11    6.9
12 4.3 12    e437  e56  e31  105  82  156  269  65  10    6.6
13 4.6 9.0 255  e54  e30  97  79  150  214  59  9.6 6.4
14 7.2 8.8 202  e52  e29  101  77  164  202  51  9.1 6.4
15 11    8.6 171  e50  e28  95  75  170  196  45  8.7 11   
 
16 6.9 9.2 154  e48  e28  95  72  170  168  41  8.0 151   
17 5.3 9.2 145  e50  e27  100  68  156  153  49  7.6 58   
18 5.6 14    124  e54  e27  124  65  177  142  44  13    27   
19 5.5 43    115  e58  e27  127  62  270  131  37  34    20   
20 5.5 61    148  e56  e70  114  64  230  122  34  20    15   
 
21 5.2 41    142  e52  e200  102  113  299  120  32  16    12   
22 5.0 32    122  e49  e170  93  105  316  118  47  13    10   
23 5.0 27    95  e47  e150  91  83  510  108  47  12    9.5
24 5.1 24    94  e45  e170  95  76  364  98  37  12    8.7
25 5.6 21    96  e44  e140  96  91  348  93  33  23    8.2
 
26 5.5 20    83  e43  e110  156  90  385  88  30  37    7.8
27 6.2 18    86  e46  e92  254  79  312  83  27  29    7.4
28 6.2 16    80  e50  e88  207  75  264  81  25  39    7.5
29 5.3 14    80  e43  e82  232  72  229  77  23  57    7.3
30 6.4 15    74  e39  ---  217  79  1020  71  21  34    6.8
 
31 5.8 ---    70  e37  ---  197  ---  1320  ---  20  22    ---   

TOTAL 172.6 693.6 4016 1660 1932 4457 2873 8492 6272 1563 626.0 498.7
MEAN 5.57 23.1 130 53.5 66.6 144 95.8 274 209 50.4 20.2 16.6
MAX 11 61 772 70 200 330 182 1320 752 98 57 151
MIN 4.3 5.7 12 37 27 73 62 86 71 20 7.6 6.4
CFSM 0.03 0.13 0.74 0.31 0.38 0.83 0.55 1.57 1.20 0.29 0.12 0.10
IN. 0.04 0.15 0.86 0.35 0.41 0.95 0.61 1.82 1.34 0.33 0.13 0.11
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2004, BY WATER YEAR (WY)
MEAN 55.2 65.7 72.9 89.9 161 178 199 202 188 122 64.5 53.1
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 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1935 - 2004
ANNUAL TOTAL 35189.7     33255.9    
ANNUAL MEAN 96.4     90.9     122           
HIGHEST ANNUAL MEAN 399            1993
LOWEST ANNUAL MEAN 25.8         1940
HIGHEST DAILY MEAN 4870            May 1 1320            May 31 7030            Oct 18 1998
LOWEST DAILY MEAN 4.3         Oct 12 4.3         Oct 12 0.53       Aug 6 1989
ANNUAL SEVEN-DAY MINIMUM 4.8         Oct 3 4.8         Oct 3 0.78       Aug 1 1989
MAXIMUM PEAK FLOW 2180            May 30 8900        A Apr 22 1973
MAXIMUM PEAK STAGE 26.87       May 30 29.25   B Feb 9 2001
INSTANTANEOUS LOW FLOW 4.0         Oct 12,13
ANNUAL RUNOFF (CFSM) 0.554 0.522 0.702    
ANNUAL RUNOFF (INCHES) 7.52   7.11   9.54      
10 PERCENT EXCEEDS 157        203        267           
50 PERCENT EXCEEDS 20        56        48           
90 PERCENT EXCEEDS 5.9     7.2     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