DWR_2668978

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2002
• Document Type - Publications and Reports: Streamflow Report

48

06758500 SOUTH PLATTE RIVER NEAR WELDONA, CO

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 left bank 875 ft downstream from bridge on State Highway 144, 2.8 mi southeast of
Weldona, and 4.2 mi upstream from Bijou Creek.

DRAINAGE AREA AND PERIOD OF RECORD.--13,245 mi². October 1952 to current year.

GAGE.--Graphic water-stage recorder and satellite monitoring equipment in a corrugated metal pipe and
stilling well. The satellite equipment is a Sutron 8004 with digital shaft encoder. An electric
tape inside the station references the gage. A new station was installed and operation began on May
2, 1991.

REMARKS.--The primary record is hourly data taken from satellite monitoring with chart back up. The record
is complete and reliable. Mean gage heights from the chart were used October 28, 2001, and April 7,
2002 to compute discharge on daylight savings time days. Chart values were also used February 10-13.
Record is considered fair because of all the shifting sand. Station maintained and record developed
by George Sievers.

RATING TABLE.--PLAWELCO16 USED FROM 01-OCT-2001 TO 30-SEP-2002
PLAWELSH01,02,03,04,05,06,07,08,09 USED ALONG WITH PLAWELCO16 AT VARIOUS TIMES THROUGH THE YEAR
DUE TO SHIFTING SANDS. SEE DAILY RECORD FOR DETAILS.

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
MEAN VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 137 517 326 140 576 200 575 134 211 95 74 71
2 123 672 290 158 447 275 461 143 189 96 82 70
3 113 476 282 179 319 657 297 118 162 89 76 68
4 107 409 275 261 292 803 215 111 254 90 75 67
5 119 380 271 294 293 691 153 102 524 143 76 66
6 128 364 262 296 292 540 138 106 827 182 73 61
7 143 380 261 298 246 377 130 191 469 435 72 58
8 185 348 255 303 198 212 136 181 92 338 75 60
9 217 294 249 299 181 147 131 179 166 201 77 64
10 249 311 253 311 184 140 96 181 195 275 79 67
11 246 310 251 315 165 129 69 181 163 265 71 71
12 259 295 247 284 154 148 52 183 112 219 69 73
13 262 351 243 252 158 180 32 185 71 198 67 98
14 277 376 249 231 163 186 28 192 54 184 69 121
15 309 359 250 277 180 215 31 222 61 171 70 176
16 333 351 250 391 181 239 70 216 63 173 90 295
17 356 343 249 326 162 253 55 224 78 234 99 213
18 267 342 246 250 163 268 72 221 64 214 101 153
19 259 340 272 254 189 309 80 225 80 303 96 130
20 257 343 299 366 209 386 82 221 86 250 90 106
21 252 339 295 456 201 446 81 235 102 213 84 113
22 280 359 288 589 198 462 80 187 138 150 73 134
23 257 355 291 515 205 447 65 172 93 181 69 123
24 251 342 287 479 208 557 58 191 115 85 73 109
25 325 343 281 506 209 507 124 243 146 79 73 118
26 387 363 277 494 205 493 177 1040 140 84 74 98
27 410 329 286 370 228 494 175 625 125 91 80 95
28 408 323 253 347 211 562 145 311 136 92 72 95
29 404 355 155 350 --- 625 143 196 120 87 71 104
30 410 370 143 415 --- 611 140 272 100 80 77 124
31 419 --- 151 580 --- 606 --- 205 --- 76 75 ---

TOTAL 8149 11039 7987 10586 6417 12165 4091 7193 5136 5373 2402 3201
MEAN 263 368 258 341 229 392 136 232 171 173 78 107
AC-FT 16160 21900 15840 21000 12730 24130 8110 14270 10190 10660 4760 6350
MAX 419 672 326 589 576 803 575 1040 827 435 101 295
MIN 107 294 143 140 154 129 28 102 54 76 67 58

WTR YR 2002 TOTAL 83739 MEAN 229 MAX 1040 MIN 28 AC-FT 166100

MAX DISCH: 1270 CFS AT 08:45 ON May. 26, 2002 GH 3.77 FT. SHIFT 0.68 FT.
MAX GH: 3.77 FT. AT 08:45 ON May. 26, 2002

FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD.
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