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;1998-2002.
 

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 rain gage, 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, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 10    48  36  e27  37  e128  108  316  214  140  65  46 
2 10    43  34  e26  40  e120  118  287  202  128  56  43 
3 9.9 39  32  27  34  e100  121  254  194  119  50  39 
4 11    36  32  27  37  e83  112  231  472  111  47  35 
5 45    36  33  28  36  e130  108  216  1580  103  137  33 
 
6 32    34  32  30  26  e150  105  210  952  255  79  31 
7 21    34  34  32  26  155  131  202  465  270  54  29 
8 17    33  32  32  28  246  405  188  367  130  46  27 
9 16    32  30  33  30  506  1110  212  317  106  41  26 
10 19    32  30  34  45  397  628  197  286  97  38  25 
 
11 20    30  29  34  60  290  456  496  454  133  35  24 
12 19    30  30  34  84  255  378  4420  481  194  36  23 
13 18    30  35  34  67  232  328  3130  2430  119  49  22 
14 22    30  37  34  76  e205  296  754  2850  95  37  21 
15 23    29  44  31  90  184  272  548  692  83  32  20 
 
16 20    29  40  31  90  170  247  465  488  76  31  19 
17 18    27  39  27  98  157  224  417  398  69  29  19 
18 19    27  37  27  93  152  209  365  341  65  27  19 
19 17    27  36  28  99  146  197  330  301  336  151  19 
20 16    26  34  27  213  141  185  301  272  143  115  21 
 
21 16    27  33  28  395  136  203  279  245  90  57  20 
22 44    26  40  29  281  125  221  262  223  74  44  20 
23 574    26  e44  31  226  126  201  276  205  65  2060  18 
24 240    37  e48  31  199  128  214  284  190  59  505  17 
25 169    45  e52  28  176  124  287  372  179  55  205  16 
 
26 111    42  e43  31  159  117  252  602  204  53  132  15 
27 83    39  e40  31  143  113  281  385  246  516  99  15 
28 69    35  e38  32  e128  112  556  317  200  179  80  15 
29 59    34  e35  31  ---  118  429  281  168  153  67  14 
30 54    35  e30  27  ---  117  350  254  152  101  57  14 
 
31 51    ---  e28  20  ---  109  ---  232  ---  77  51  --- 

TOTAL 1852.9 998 1117 922 3016 5272 8732 17083 15768 4194 4512 705
MEAN 59.77 33.27 36.03 29.74 107.7 170.1 291.1 551.1 525.6 135.3 145.5 23.50
MAX 574 48 52 34 395 506 1110 4420 2850 516 2060 46
MIN 9.9 26 28 20 26 83 105 188 152 53 27 14
CFSM 0.34 0.19 0.21 0.17 0.62 0.98 1.67 3.17 3.02 0.78 0.84 0.14
IN. 0.40 0.21 0.24 0.20 0.64 1.13 1.87 3.65 3.37 0.90 0.96 0.15
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2002, BY WATER YEAR (WY)
MEAN 56.38 67.09 72.80 91.68 165.0 180.4 202.8 194.1 189.4 124.1 65.94 54.27
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 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1935 - 2002
ANNUAL TOTAL 82226.9   64171.9  
ANNUAL MEAN 225.3   175.8   123.2      
HIGHEST ANNUAL MEAN 399          1993
LOWEST ANNUAL MEAN 25.8       1940
HIGHEST DAILY MEAN 4860          Feb 25 4420          May 12 7030          Oct 18 1998
LOWEST DAILY MEAN 9.9       Oct 3 9.9       Oct 3 0.53     Aug 6 1989
ANNUAL SEVEN-DAY MINIMUM 11          Sep 28 15          Sep 24 0.78     Aug 1 1989
MAXIMUM PEAK FLOW 5120          May 12 8900      A Apr 22 1973
MAXIMUM PEAK STAGE 28.13     May 12 29.25 B Feb 9 2001
INSTANTANEOUS LOW FLOW 9.1       Oct 3,4
ANNUAL RUNOFF (CFSM) 1.29 1.01 0.71    
ANNUAL RUNOFF (INCHES) 17.58 13.72 9.62    
10 PERCENT EXCEEDS 527      366      270         
50 PERCENT EXCEEDS 56      65      48         
90 PERCENT EXCEEDS 17      22      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