Station list     Available data
ILLINOIS RIVER BASIN


05551700       BLACKBERRY CREEK NEAR YORKVILLE, IL



LOCATION.-- Lat 41°40'18", long 88°26'29", in SE1/4NW1/4 sec.21, T.37 N., R.7 E., Kendall County, Hydrologic Unit 07120007, on right bank 300 ft upstream from bridge on State Highway 47, 2.0 mi north of Yorkville, and at mile 3.3.

DRAINAGE AREA.-- 70.2 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1960 to current year.

 

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.


REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 612.34 ft above sea level.

REMARKS.-- Diversion about 7 miles upstream near Jericho Rd. that crosses the watershed divide during overbank flow.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE -WATER DISCHARGE AND STAGE: Maximum discharge, 5,510 ft3/s, July 18, 1996, gage height, 13.16 ft, from rating curve extended above 3,900 ft3/s, caused by debris jam; minimum, 0.10 ft3/s, Dec. 7, 1962, result of freeze up.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
135 12 11   17 e13 46 17 44 116 57 75 13   
227 11 11   19 e14 40 17 42 96 69 79 12   
324 12 17   19 e14 34 16 38 75 140 56 12   
434 11 15   19 e14 32 17 35 58 208 42 11   
536 11 47   18 e14 30 15 33 56 138 40 11   
 
629 10 75   16 e15 28 14 31 50 101 53 9.6
724 11 56   19 e15 28 15 30 43 77 125 9.2
820 11 41   16 e15 27 19 29 39 59 110 9.8
920 15 33   21 e16 26 16 38 34 50 75 9.3
1018 11 29   21 e17 25 17 60 30 101 57 9.5
 
1116 12 25   24 e17 24 18 72 32 148 46 11   
1216 13 23   25 e18 22 17 92 56 107 40 38   
1313 10 21   21 e17 22 16 75 77 80 35 41   
1413 11 20   15 e17 22 16 55 107 64 31 33   
1514 12 19   21 e17 22 16 46 96 53 28 30   
 
1614 11 19   19 e17 24 18 42 71 47 25 23   
1717 11 19   12 e16 23 28 40 56 41 30 19   
1813 10 13   17 e16 22 29 43 45 36 36 17   
1913 10 15   19 e17 25 36 49 39 33 29 15   
2012 11 12   19 e17 26 181 44 41 32 25 15   
 
2113 11 9.318 19 26 289 39 56 30 22 19   
2212 11 e11   e17 25 25 225 40 46 28 20 21   
2312 12 e12   e16 55 24 148 43 39 26 19 34   
2412 14 e12   e15 97 22 119 36 46 23 18 41   
2511 13 e11   e14 159 22 100 32 152 21 16 34   
 
2611 12 e11   e13 113 21 81 29 153 21 14 28   
2711 12 e12   e12 81 21 71 33 104 21 14 23   
2811 12 e12   e12 61 21 57 36 77 21 12 21   
2911 12 e13   e12 50 20 50 34 64 21 12 18   
3011 11 e14   e12 --- 18 45 33 52 25 12 16   
 
3111 --- e15   e13 --- 17 --- 44 --- 46 12 ---   

TOTAL534346653.353197678517231337200619241208603.4
MEAN17.211.521.117.133.725.357.443.166.962.139.020.1
MAX36157525159462899215320812541
MIN11109.312131714293021129.2
CFSM.25.16.30.24.48.36.82.61.95.88.56.29
IN..28.18.35.28.52.42.91.711.061.02.64.32

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 2000, BY WATER YEAR (WY)
MEAN29.642.047.245.160.485.989.576.963.747.929.232.2
MAX126175217146202360249221197381172131
(WY)197319861983199319971979197919741974199619871987
MIN5.427.444.164.255.4622.927.216.714.38.434.215.23
(WY)196419641964197719631964196319891977196119911976

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1961 - 2000
ANNUAL TOTAL21539.6  12626.7      
ANNUAL MEAN59.0  34.5      54.1      
HIGHEST ANNUAL MEAN97.8      1993
LOWEST ANNUAL MEAN16.7      1977
HIGHEST DAILY MEAN846         Apr 24289             Apr 213460         Jul 19 1996
LOWEST DAILY MEAN5.8      Sep 239.2          Sep 71.6      Aug 2 1991
ANNUAL SEVEN-DAY MINIMUM6.7      Sep 209.9          Sep 42.1      Jul 31 1991
INSTANTANEOUS PEAK FLOW297             Apr 215510      AJul 18 1996
INSTANTANEOUS PEAK STAGE5.93        Apr 2113.16 BJul 18 1996
INSTANTANEOUS LOW FLOW3.4   C    Dec 18.10 CDec 7 1962
ANNUAL RUNOFF (CFSM).84.49    .77    
ANNUAL RUNOFF (INCHES)11.416.69    10.46    
10 PERCENT EXCEEDS119     75         110         
50 PERCENT EXCEEDS32     21         31         
90 PERCENT EXCEEDS11     11         10         
A - From rating curve extended above 3,900 ft3/s.
B - Backwater from debris jam.
C - Result of freeze up.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data