Station list
Available data
ROCK RIVER BASIN
05447500 GREEN RIVER NEAR GENESEO, IL
LOCATION.--Lat 41°29'20", long 90°09'30", in NE1/4SW1/4 sec.4, T.17 N., R.3 E., Henry County, Hydrologic Unit 07090007, on
right bank at upstream side of bridge on State Highway 82, 1.4 mi upstream from Geneseo Creek, 2.4 mi north of Geneseo, and
at mile 14.9.
DRAINAGE AREA.--1,003 mi2.
PERIOD OF RECORD.--March 1936 to current year.
REVISED RECORDS.--WSP 875: 1938. WSP 1508: 1937, 1939-41(M), 1946(P), 1947-49. WDR IL-74-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 577.66 ft above sea level (levels by U.S. Army Corps of
Engineers). Prior to Oct. 1, 1939, nonrecording gage at present site at datum 27.00 ft. lower. Oct. 1, 1939 to Apr. 3, 1940, nonrecording gage
at present site at datum 3.0 ft. higher. Apr. 3, 1940 to Sept. 30, 1997, recording gage at present site at datum 3.0 ft. higher.
REMARKS.--Records good except those for estimated daily discharges, which are poor. U.S. Army Corps of Engineers satellite
telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
|
---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
---|
|
1 | 232 | 1340 | 825 | e600 | 1890 | 886 | 685 | 1620 | 926 | 825 | 228 | 140
|
2 | 254 | 1340 | 805 | e660 | 2230 | 845 | 668 | 1470 | 1880 | 791 | 217 | 137
|
3 | 302 | 1350 | 793 | e620 | 2640 | 855 | 663 | 1360 | 2170 | 758 | 210 | 133
|
4 | 409 | 1220 | 769 | e580 | 2400 | 828 | 669 | 1280 | 1760 | 711 | 203 | 129
|
5 | 1380 | 1130 | 745 | e560 | 1950 | 821 | 646 | 1230 | 2000 | 657 | 196 | 126
|
|
6 | 1780 | 1070 | 785 | e700 | 1680 | 832 | 654 | 1170 | 1730 | 615 | 187 | 124
|
7 | 1170 | 1020 | 1780 | e660 | 1570 | 778 | 653 | 1220 | 2400 | 575 | 187 | 121
|
8 | 919 | 1010 | 1940 | e640 | 1470 | 771 | 630 | 1320 | 1750 | 547 | 201 | 119
|
9 | 772 | 1010 | 1520 | e600 | 1410 | 737 | 714 | 1170 | 1420 | 530 | 198 | 116
|
10 | 679 | 3850 | 1270 | e570 | 1340 | 795 | 778 | 1080 | 1240 | 562 | 189 | 113
|
|
11 | 605 | 4150 | 1160 | e550 | 1370 | 785 | 729 | 1030 | 1170 | 532 | 180 | 115
|
12 | 552 | 3060 | 1090 | e540 | 1560 | 758 | 698 | 1150 | 1090 | 489 | 194 | 116
|
13 | 511 | 2300 | 1040 | e520 | 1370 | 746 | 662 | 4370 | 3670 | 462 | 249 | 120
|
14 | 489 | 1920 | 989 | e510 | 1270 | 738 | 646 | 4500 | 5350 | 442 | 207 | 120
|
15 | 526 | 1650 | 944 | e500 | 1190 | 757 | 674 | 3440 | 4260 | 424 | 187 | 119
|
|
16 | 552 | 1460 | 919 | e490 | 1140 | 850 | 1970 | 2730 | 3210 | 401 | 174 | 116
|
17 | 2510 | 1330 | 892 | e480 | 1100 | 1280 | 3340 | 2540 | 2390 | 379 | 166 | 116
|
18 | 9670 | 1220 | 872 | e480 | 1050 | 1590 | 2810 | 2490 | 1890 | 374 | 164 | 115
|
19 | 8030 | 1150 | 844 | e470 | 1000 | 1450 | 2120 | 2080 | 1610 | 367 | 169 | 114
|
20 | 6090 | 1090 | 803 | e470 | 961 | 1180 | 1690 | 1770 | 1410 | 382 | 174 | 114
|
|
21 | 5110 | 1050 | 788 | e470 | 914 | 1070 | 1470 | 1600 | 1270 | 371 | 164 | 114
|
22 | 4340 | 1020 | e600 | e900 | 882 | 1000 | 1380 | 2290 | 1170 | 344 | 153 | 115
|
23 | 3600 | 990 | e650 | e2300 | 867 | 938 | 4720 | 1950 | 1090 | 323 | 160 | 118
|
24 | 2920 | 942 | e700 | e3400 | 852 | 894 | 5020 | 1580 | 1310 | 323 | 263 | 117
|
25 | 2340 | 926 | e800 | 3630 | 834 | 844 | 3790 | 1360 | 1710 | 311 | 231 | 115
|
|
26 | 1940 | 901 | e760 | 3030 | 810 | 807 | 3070 | 1220 | 1220 | 303 | 203 | 113
|
27 | 1710 | 865 | e720 | 3000 | 847 | 777 | 2500 | 1120 | 1040 | 288 | 182 | 142
|
28 | 1900 | 838 | e660 | 3710 | 894 | 768 | 2290 | 1050 | 949 | 281 | 170 | 618
|
29 | 1790 | 824 | e580 | 3010 | --- | 758 | 2150 | 999 | 869 | 270 | 158 | 750
|
30 | 1630 | 827 | e450 | 2320 | --- | 719 | 1830 | 947 | 806 | 250 | 147 | 525
|
|
31 | 1460 | --- | e520 | 1970 | --- | 690 | --- | 913 | --- | 235 | 143 | ---
|
TOTAL | 66172 | 42853 | 28013 | 38940 | 37491 | 27547 | 50319 | 54049 | 54760 | 14122 | 5854 | 5150
|
MEAN | 2135 | 1428 | 904 | 1256 | 1339 | 889 | 1677 | 1744 | 1825 | 456 | 189 | 172
|
MAX | 9670 | 4150 | 1940 | 3710 | 2640 | 1590 | 5020 | 4500 | 5350 | 825 | 263 | 750
|
MIN | 232 | 824 | 450 | 470 | 810 | 690 | 630 | 913 | 806 | 235 | 143 | 113
|
CFSM | 2.13 | 1.42 | .90 | 1.25 | 1.33 | .89 | 1.67 | 1.74 | 1.82 | .45 | .19 | .17
|
IN. | 2.45 | 1.59 | 1.04 | 1.44 | 1.39 | 1.02 | 1.87 | 2.00 | 2.03 | .52 | .22 | .19
|
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1936 - 1999, BY WATER YEAR (WY)
|
---|
MEAN | 391 | 465 | 470 | 547 | 748 | 1043 | 1080 | 985 | 886 | 556 | 390 | 346
|
MAX | 2135 | 1790 | 1905 | 1976 | 2070 | 3244 | 3562 | 3500 | 3568 | 2946 | 1845 | 1777
|
(WY) | 1999 | 1978 | 1983 | 1946 | 1949 | 1979 | 1973 | 1974 | 1974 | 1990 | 1987 | 1970
|
MIN | 48.8 | 60.4 | 57.1 | 26.5 | 68.8 | 198 | 174 | 140 | 127 | 62.9 | 61.0 | 46.5
|
(WY) | 1954 | 1954 | 1959 | 1977 | 1940 | 1956 | 1956 | 1989 | 1977 | 1940 | 1988 | 1940
|
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1936 - 1999 |
---|
ANNUAL TOTAL | 455338 | | 425270 | | |
|
ANNUAL MEAN | 1248 | | 1165 | | 660 |
|
HIGHEST ANNUAL MEAN | | | | | 1579 | 1993
|
LOWEST ANNUAL MEAN | | | | | 159 | 1940
|
HIGHEST DAILY MEAN | 9670 | Oct 18 | 9670 | Oct 18 | 10100 | Mar 19 1979
|
LOWEST DAILY MEAN | 166 | Sep 13 | 113 | Sep 10, 26 | 22 | Jan 18 1977
|
ANNUAL SEVEN-DAY MINIMUM | 176 | Sep 7 | 115 | Sep 16 | 24 | Jan 17 1977
|
INSTANTANEOUS PEAK FLOW | | | 10300 | Oct 18 | 12100 A | Jun 22 1974
|
INSTANTANEOUS PEAK STAGE | | | 18.77 | Oct 18 | 18.59 B | Jan 23 1969
|
INSTANTANEOUS LOW FLOW | | | 110 | Sep 26 | |
|
ANNUAL RUNOFF (CFSM) | 1.24 | | 1.16 | | .66 |
|
ANNUAL RUNOFF (INCHES) | 16.89 | | 15.77 | | 8.94 |
|
10 PERCENT EXCEEDS | 2460 | | 2400 | | 1480 |
|
50 PERCENT EXCEEDS | 1010 | | 844 | | 391 |
|
90 PERCENT EXCEEDS | 262 | | 170 | | 95 |
|
A - Gage height, 16.75 ft, datum then in use.
B - Backwater from ice, datum then in use.