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<br /> <br /> <br /> 39 <br /> <br /> PLATTE RIVER BASIN <br /> <br /> 06758500 SOUTH PLATTE RIVER NEAR WELDONA, CO <br /> <br />LOCATION.--Lat 40°19'16", long 103°55'10", in SW¼SW¼ sec.7, T.4 N., R.58 W., Morgan County, Hydrologic Unit 10190003, on <br />left bank 875 ft downstream from bridge on State Highway 144, 2.8 mi southeast of Weldona, and 4.2 mi upstream <br />from Bijou Creek. <br /> <br />DRAINAGE AREA.--13,245 mi2. <br /> <br />GAGE.--Water-stage recorder, Datum of gage is 4,307.80 ft above National Geodetic Vertical Datum of 1929. A new station <br />was installed and operation began on May 2, 1991. <br /> <br />REMARKS.--Record is complete and reliable, except for the following periods: Nov. 17-28; Dec. 3-5, 1990; Feb. 19-28; <br />Mar. 1-8, 10-15, 18-23; May 12-16, 1991 when the inlet was above the water level. Also Dec. 20-31, 1990; Jan. 1- <br />31; Feb. 1-6, 1991 when the gage was affected by ice. Natural flow of stream affected by transmountain and <br />transbasin diversions, storage reservoirs, power developments, ground water withdrawals and diversions for <br />irrigation. Station maintained and records developed by George Sievers. <br /> <br />RATING TABLE.--PLAWELCO15 USED FROM 01-OCT-1990 TO 30-SEP-1991 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991 <br /> MEAN VALUES <br /> <br />DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 463 269 213 840 800 200 217 227 571 284 173 416 <br /> 2 553 266 216 880 880 200 213 228 726 248 337 412 <br /> 3 448 284 210 900 810 170 203 371 2210 224 385 408 <br /> 4 475 263 200 950 760 150 194 282 4320 225 515 467 <br /> 5 533 279 190 940 710 150 194 332 2790 251 1240 541 <br /> 6 546 301 190 900 690 140 149 418 1810 252 892 506 <br /> 7 523 294 193 900 684 160 138 482 1840 248 1060 563 <br /> 8 525 336 196 890 590 200 117 459 2160 239 1040 611 <br /> 9 557 380 193 810 531 196 161 368 2380 244 761 670 <br /> 10 586 357 181 810 483 130 183 277 1930 258 557 605 <br /> 11 567 338 217 810 466 120 196 181 2000 306 433 674 <br /> 12 495 307 283 800 339 120 234 150 1990 447 410 903 <br /> 13 455 363 418 800 282 130 410 150 1840 404 370 754 <br /> 14 442 298 467 700 253 220 624 130 1810 533 278 806 <br /> 15 415 269 459 500 254 230 639 110 1850 609 215 536 <br /> 16 378 230 454 490 240 242 437 120 1860 318 176 470 <br /> 17 355 210 443 460 224 232 343 164 1900 271 161 410 <br /> 18 354 180 455 500 227 190 340 537 1680 234 253 323 <br /> 19 364 160 442 570 210 200 340 393 1180 215 399 273 <br /> 20 365 170 500 560 210 210 291 296 646 241 415 201 <br /> 21 338 180 590 550 210 200 208 286 325 229 402 172 <br /> 22 327 170 530 660 170 200 248 218 149 252 382 140 <br /> 23 321 130 710 720 170 190 270 188 213 554 347 112 <br /> 24 322 130 790 750 150 208 271 268 773 1580 324 96 <br /> 25 317 120 790 750 150 192 235 656 295 1300 321 87 <br /> 26 292 110 800 860 140 168 249 703 109 744 308 85 <br /> 27 287 110 800 820 180 197 280 381 88 485 266 84 <br /> 28 288 150 810 850 200 173 261 335 143 765 220 84 <br /> 29 298 213 810 840 --- 170 245 338 281 777 181 84 <br /> 30 284 217 820 770 --- 190 238 509 292 591 193 100 <br /> 31 294 --- 830 760 --- 205 --- 590 --- 369 416 --- <br /> <br />TOTAL 12767 7084 14400 23340 11013 5683 8128 10147 40161 13697 13430 11593 <br />MEAN 412 236 465 753 393 183 271 327 1339 442 433 386 <br />AC-FT 25320 14050 28560 46290 21840 11270 16120 20130 79660 27170 26640 22990 <br />MAX 586 380 830 950 880 242 639 703 4320 1580 1240 903 <br />MIN 284 110 181 460 140 120 117 110 88 215 161 84 <br /> <br />CAL YR 1990 TOTAL 190142 MEAN 521 MAX 1910 MIN 77 AC-FT 377100 <br />WTR YR 1991 TOTAL 171443 MEAN 470 MAX 4320 MIN 84 AC-FT 340100 <br /> <br />MAX DISCH 4590 CFS AT 1400 04-JUN-1991 GH 6.89 FT. SHIFT -0.05 FT. MAX GH 6.89 FT. AT 1400 <br />04-JUN-1991