LOCATION.-- Lat 39°42'11", long 88°23'11" (NAD of 1927), in SE1/4NW1/4 sec.35, T.15 N., R.7 E., Douglas County, Hydrologic Unit 07140201, on left bank at downstream side of bridge on State Highway 133 at Chesterville, and at mile 254.0. |
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DRAINAGE AREA.-- 358 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: May 1995 to current year. Computed mean discharge, Jan. 1966 to Nov. 1980 available in files of U.S. Army Corps of Engineers. |
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STAGE: May 1995 to current year. Gage-height record for Jan. 1974 to July 1983, and Apr. 4, 1995 to May 11, 1995 available in files of U.S. Army Corps of Engineers. |
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MISCELLANEOUS: Discharge measurements, May 1966 to Mar. 1979 available in files of U.S. Army Corps of Engineers. |
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GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 600.00 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers) (599.74 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,530 ft3/s, May 13, 2002, gage height, 45.52 ft; minimum discharge, 4.1 ft3/s, Sept. 19, 1999. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of Mar. 5, 1979 reached a stage of 44.84 ft, discharge undetermined, from information by the U.S. Army Corps of Engineers. |
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REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 9.8 | 341 | 2060 | e120 | 191 | 300 | 306 | 147 | 71 | 42 | 12 | 10 |
2 | 10 | 483 | 2350 | 144 | 175 | 251 | 263 | 136 | 72 | 32 | 12 | 10 |
3 | 11 | 906 | 2110 | 236 | 168 | 218 | 241 | 129 | 77 | 30 | e12 | 9.2 |
4 | 11 | 987 | 1690 | 943 | 164 | 212 | 217 | 123 | 74 | 28 | e13 | 9.9 |
5 | 10 | 861 | 1340 | 2210 | 181 | 214 | 204 | 117 | 69 | 29 | 13 | 10 |
6 | 10 | 711 | 1090 | 3990 | 308 | 194 | 193 | 113 | 65 | 25 | 12 | 8.6 |
7 | 10 | 557 | 1490 | 4100 | 564 | 196 | 185 | 114 | 62 | 23 | e11 | 8.1 |
8 | 11 | 441 | 2630 | 3060 | 1140 | 200 | 177 | 112 | 60 | 24 | 10 | 9.7 |
9 | 11 | 332 | 2760 | 2040 | 1550 | 166 | 162 | 111 | 60 | 21 | 10 | 9.5 |
10 | 13 | 271 | 2170 | 1570 | 1420 | 154 | 157 | 112 | 57 | 18 | 11 | 8.9 |
11 | 12 | 254 | 1660 | 1470 | 1110 | 162 | 154 | 109 | 65 | 16 | 11 | 9.1 |
12 | 10 | 258 | 1300 | 2090 | 890 | 159 | 168 | 186 | 79 | 18 | 12 | 8.9 |
13 | 11 | 233 | 1040 | 3940 | 840 | 147 | 397 | 197 | 65 | 24 | 14 | 9.3 |
14 | 12 | 191 | 820 | 5440 | 1570 | 130 | 473 | 164 | 145 | 33 | 14 | 11 |
15 | 13 | 167 | 654 | 4860 | 2100 | 123 | 350 | 143 | 469 | 32 | 20 | 20 |
16 | 13 | 156 | 558 | 3240 | 1840 | 120 | 269 | 121 | 556 | 27 | 18 | 18 |
17 | 13 | 152 | 490 | 1960 | 1540 | 123 | 231 | 107 | 369 | 29 | 14 | 34 |
18 | 23 | 145 | 424 | 1300 | 1190 | 126 | 212 | 102 | 221 | 24 | 12 | 14 |
19 | 68 | 163 | 375 | 914 | 898 | 126 | 198 | 103 | 162 | 22 | 17 | 13 |
20 | 151 | 287 | 306 | 701 | 722 | 120 | 187 | 167 | 132 | 21 | 25 | 17 |
21 | 110 | 323 | 293 | 549 | 662 | 106 | 223 | 173 | 113 | 18 | 34 | 31 |
22 | 74 | 280 | 277 | 445 | 636 | 107 | 383 | 142 | 100 | 18 | 26 | 21 |
23 | 61 | 253 | 196 | 309 | 560 | 138 | 436 | 127 | 87 | 41 | 16 | 17 |
24 | 90 | 288 | e180 | e299 | 488 | 292 | 373 | 115 | 76 | 26 | 13 | 22 |
25 | 161 | 860 | e171 | e299 | 433 | 428 | 294 | 102 | 67 | 17 | 14 | 45 |
26 | 138 | 1640 | e162 | e290 | 375 | 734 | 249 | 93 | 59 | 16 | 14 | 89 |
27 | 157 | 1740 | e155 | e282 | 328 | 783 | 225 | 91 | 62 | 16 | 13 | 178 |
28 | 304 | 1750 | e149 | e279 | 316 | 645 | 186 | 87 | 48 | 24 | 12 | 115 |
29 | 312 | 1960 | e140 | 275 | --- | 510 | 166 | 83 | 43 | 17 | 11 | 88 |
30 | 300 | 1860 | e134 | 254 | --- | 387 | 159 | 80 | 62 | 14 | 11 | 98 |
31 | 342 | --- | e129 | 216 | --- | 338 | --- | 75 | --- | 13 | 11 | --- |
TOTAL | 2481.8 | 18850 | 29303 | 47825 | 22359 | 7909 | 7438 | 3781 | 3647 | 738 | 448 | 952.2 |
MEAN | 80.1 | 628 | 945 | 1543 | 799 | 255 | 248 | 122 | 122 | 23.8 | 14.5 | 31.7 |
MAX | 342 | 1960 | 2760 | 5440 | 2100 | 783 | 473 | 197 | 556 | 42 | 34 | 178 |
MIN | 9.8 | 145 | 129 | 120 | 164 | 106 | 154 | 75 | 43 | 13 | 10 | 8.1 |
CFSM | 0.22 | 1.76 | 2.64 | 4.31 | 2.23 | 0.71 | 0.69 | 0.34 | 0.34 | 0.07 | 0.04 | 0.09 |
IN. | 0.26 | 1.96 | 3.04 | 4.97 | 2.32 | 0.82 | 0.77 | 0.39 | 0.38 | 0.08 | 0.05 | 0.10 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 83.8 | 174 | 261 | 430 | 529 | 509 | 461 | 759 | 556 | 160 | 47.0 | 49.4 |
MAX | 355 | 628 | 945 | 1543 | 1219 | 1233 | 1123 | 2146 | 1378 | 475 | 100 | 200 |
(WY) | 2001 | 2005 | 2005 | 2005 | 2001 | 1998 | 2002 | 1996 | 1998 | 2000 | 2000 | 2000 |
MIN | 11.4 | 18.8 | 17.7 | 14.2 | 39.7 | 86.5 | 54.1 | 114 | 122 | 23.8 | 14.5 | 8.98 |
(WY) | 1997 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2001 | 2005 | 2005 | 2005 | 1998 |
SUMMARY STATISTICS | FOR 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1995 - 2005 | |||
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ANNUAL TOTAL | 162801.8 | 145732.0 | ||||
ANNUAL MEAN | 445 | 399 | 336 | |||
HIGHEST ANNUAL MEAN | 551 | 1998 | ||||
LOWEST ANNUAL MEAN | 106 | 2003 | ||||
HIGHEST DAILY MEAN | 4040 | Mar 28 | 5440 | Jan 14 | 7990 | May 13 2002 |
LOWEST DAILY MEAN | 9.8 | Oct 1 | 8.1 | Sep 7 | 4.7 | Sep 10 1998 |
ANNUAL SEVEN-DAY MINIMUM | 10 | Oct 1 | 9.0 | Sep 6 | 6.0 | Sep 15 1999 |
MAXIMUM PEAK FLOW | 5670 | Jan 14 | 8530 | May 13 2002 | ||
MAXIMUM PEAK STAGE | 43.39 | Jan 14 | 45.52 | May 13 2002 | ||
INSTANTANEOUS LOW FLOW | 7.4 | Sep 7 | 4.1 | Sep 19 1999 | ||
ANNUAL RUNOFF (CFSM) | 1.24 | 1.12 | 0.939 | |||
ANNUAL RUNOFF (INCHES) | 16.92 | 15.14 | 12.76 | |||
10 PERCENT EXCEEDS | 1150 | 1230 | 928 | |||
50 PERCENT EXCEEDS | 206 | 147 | 108 | |||
90 PERCENT EXCEEDS | 18 | 12 | 14 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |