LOCATION.-- Lat 42°36'42", long 89°23'53" (NAD of 1927), in SW 1/4 sec.26, T.2 N., R.9 E., Green County, Hydrologic Unit 07090004, on left bank at downstream side of highway bridge, 1.2 mi southwest of Brodhead, and 1.9 mi upstream from Sylvester Creek. |
|
DRAINAGE AREA.-- 523 mi2. |
|
PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE |
|
DISCHARGE: January 1914 to current year. Monthly discharge for January and February 1914 published in WSP 1308. |
|
REVISED RECORDS.-- WSP 1238: 1914-16, 1918, 1922, 1927, 1933. WSP 1508: 1916-17(M), 1919(M), 1920, 1921(M), 1927-28(M), 1930(M), 1931, 1936(M), 1943(M). WDR WI-73-1: Drainage area. |
|
GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 768.14 ft above NGVD of 1929. Prior to Oct. 17, 1938, nonrecording gage 20 ft upstream at same datum. |
|
REMARKS.-- Some regulation from dam and non-operational powerplant upstream. |
|
EXTREMES FOR PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 14,800 ft3/s. September 13, 1915, from rating curve extended above 7,500 ft3/s, gage height, 11.40 feet, from floodmarks; minimum discharge, 35 ft3/s, September 19, 1959. |
|
REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 414 | 276 | e220 | 243 | e180 | e200 | 312 | 395 | 279 | 218 | 190 | 135 |
2 | 378 | 261 | e220 | e230 | e180 | e200 | 300 | 578 | 273 | 201 | 181 | 135 |
3 | 379 | 262 | e220 | e230 | e180 | e190 | 294 | 644 | 268 | 199 | 176 | 137 |
4 | 471 | 279 | e220 | 232 | e180 | e190 | 298 | 526 | 264 | 200 | 180 | 139 |
5 | 557 | 264 | e220 | 258 | e180 | e190 | 317 | 468 | 256 | 225 | 184 | 126 |
6 | 585 | 262 | e220 | 246 | e180 | e190 | 320 | 486 | 253 | 232 | 177 | 126 |
7 | 536 | 267 | e220 | 237 | e180 | e190 | 311 | 477 | 255 | 233 | 181 | 126 |
8 | 424 | 264 | e220 | 237 | e180 | e190 | 301 | 481 | 265 | 243 | 169 | 112 |
9 | 362 | 262 | e220 | 243 | e180 | e190 | 290 | 667 | 262 | 302 | 164 | 117 |
10 | 329 | 261 | e220 | e230 | e180 | e190 | 293 | 693 | 256 | 326 | 163 | 120 |
11 | 323 | 259 | e230 | e180 | e180 | e190 | 309 | 677 | 250 | 283 | 161 | 119 |
12 | 315 | 255 | 236 | e220 | e180 | e200 | 305 | 567 | 247 | 263 | 160 | 124 |
13 | 307 | 254 | 238 | e210 | e180 | e220 | 292 | 482 | 244 | 241 | 159 | 154 |
14 | 297 | 254 | 244 | e200 | e180 | e300 | 280 | 447 | 236 | 225 | 157 | 238 |
15 | 293 | 252 | 246 | e190 | e180 | e360 | 262 | 442 | 229 | 242 | 154 | 300 |
16 | 302 | 251 | e240 | e190 | e180 | 418 | 249 | 439 | 220 | 269 | 151 | 297 |
17 | 288 | 247 | 243 | e180 | e180 | 364 | 267 | 405 | 215 | 250 | 145 | 236 |
18 | 288 | 247 | 265 | e180 | e200 | 323 | 263 | 370 | 230 | 231 | 144 | 194 |
19 | 292 | 252 | 329 | e180 | e240 | 308 | 275 | 346 | 234 | 215 | 141 | 178 |
20 | 291 | 256 | 372 | e180 | e300 | 302 | 304 | 411 | 223 | 206 | 140 | 169 |
21 | 281 | 246 | 329 | e180 | e270 | 316 | 326 | 456 | 210 | 200 | 142 | 167 |
22 | 288 | 239 | 292 | e180 | e250 | 311 | 314 | 444 | 205 | 198 | 133 | 169 |
23 | 300 | 249 | 241 | e180 | e250 | 296 | 291 | 373 | 201 | 204 | 133 | 169 |
24 | 274 | 247 | 237 | e180 | e240 | 289 | 272 | 339 | 195 | 201 | 131 | 168 |
25 | 286 | 245 | e240 | e170 | e230 | 285 | 260 | 321 | 205 | 187 | 131 | 163 |
26 | 302 | 232 | e240 | e170 | e210 | 281 | 252 | 304 | 267 | 181 | 131 | 162 |
27 | 312 | 217 | e240 | e170 | e200 | 277 | 244 | 291 | 259 | 178 | 127 | 167 |
28 | 305 | 235 | 264 | e170 | e200 | 303 | 244 | 285 | 232 | 176 | 124 | 169 |
29 | 292 | 265 | 252 | e170 | --- | 378 | 219 | 285 | 232 | 174 | 128 | 166 |
30 | 288 | e230 | 254 | e170 | --- | 400 | 244 | 287 | 232 | 171 | 135 | 165 |
31 | 281 | --- | 252 | e180 | --- | 341 | --- | 294 | --- | 177 | 134 | --- |
TOTAL | 10640 | 7590 | 7684 | 6216 | 5650 | 8382 | 8508 | 13680 | 7197 | 6851 | 4726 | 4947 |
MEAN | 343 | 253 | 248 | 201 | 202 | 270 | 284 | 441 | 240 | 221 | 152 | 165 |
MAX | 585 | 279 | 372 | 258 | 300 | 418 | 326 | 693 | 279 | 326 | 190 | 300 |
MIN | 274 | 217 | 220 | 170 | 180 | 190 | 219 | 285 | 195 | 171 | 124 | 112 |
CFSM | 0.66 | 0.48 | 0.47 | 0.38 | 0.39 | 0.52 | 0.54 | 0.84 | 0.46 | 0.42 | 0.29 | 0.32 |
IN. | 0.76 | 0.54 | 0.55 | 0.44 | 0.40 | 0.60 | 0.61 | 0.97 | 0.51 | 0.49 | 0.34 | 0.35 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2003, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 287 | 308 | 272 | 293 | 430 | 653 | 463 | 375 | 375 | 303 | 260 | 297 |
MAX | 788 | 836 | 597 | 1168 | 1690 | 1698 | 1159 | 1368 | 1320 | 1248 | 694 | 1579 |
(WY) | 1928 | 1962 | 1929 | 1916 | 1938 | 1929 | 1993 | 1973 | 2000 | 1993 | 1924 | 1938 |
MIN | 126 | 127 | 120 | 89.4 | 127 | 181 | 198 | 140 | 113 | 117 | 105 | 106 |
(WY) | 1965 | 1965 | 1956 | 1956 | 1959 | 1934 | 1938 | 1934 | 1934 | 1958 | 1934 | 1958 |
SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1914 - 2003 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 130676 | 92071 | ||||
ANNUAL MEAN | 358 | 252 | 359 | |||
HIGHEST ANNUAL MEAN | 694 | 1993 | ||||
LOWEST ANNUAL MEAN | 172 | 1934 | ||||
HIGHEST DAILY MEAN | 1290 | Jun 5 | 693 | May 10 | 10800 | Mar 14 1929 |
LOWEST DAILY MEAN | 217 | Nov 27 | 112 | Sep 8 | 51 | Jun 13 1934 |
ANNUAL SEVEN-DAY MINIMUM | 220 | Dec 1 | 121 | Sep 6 | 71 | Jun 28 1934 |
MAXIMUM PEAK FLOW | 742 | May 9 | 14800 | Sep 13 1915 | ||
MAXIMUM PEAK STAGE | 2.72 | May 9 | 11.40 | Sep 13 1915 | ||
INSTANTANEOUS LOW FLOW | 35 | Sep 19 1959 | ||||
ANNUAL RUNOFF (CFSM) | 0.68 | 0.48 | 0.69 | |||
ANNUAL RUNOFF (INCHES) | 9.29 | 6.55 | 9.34 | |||
10 PERCENT EXCEEDS | 494 | 361 | 584 | |||
50 PERCENT EXCEEDS | 315 | 240 | 263 | |||
90 PERCENT EXCEEDS | 236 | 163 | 150 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |