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29 <br />PLATTE RIVER BASIN <br /> <br />06714000 SOUTH PLATTE RIVER AT DENVER, CO <br /> <br />LOCATION.--Lat 39°45'35", long 105°00'10", in NW¼SE¼ sec. 28, T.3 S., R.68 W., Denver County, Hydrologic Unit <br />10190003, on right bank 90 ft Upstream from Nineteenth Street Bridge in Denver and 0.4 mi downstream from <br />Cherry Creek. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--3,861 mi². May 1889 to Oct. 1890 sporadic record. July 1895 to current <br />year continuous. Monthly data only for some periods. <br /> <br />GAGE.--The shelter is 72 inch by 72 inch precast concrete structure with a 48 inch corrugated steel well. The <br />station uses an electric drop tape, Sutron 8210 satellite telemetry with a phone modem interface (303- <br />297-9505), a continuous chart recorder and a supplemental outside wire weight. A city water line is <br />plumbed to the gage for flushing the inlets. The gage and chart recorder are maintained by DWR. The <br />USGS Lakewood Field Office maintains the satellite equipment and phone interface for the USCOE. <br /> <br />REMARKS.--The primary record is fifteen minute data taken from satellite monitoring with chart backup. Daily <br />maximum & minimum stages for the satellite record checked to within ±0.02 with the chart. The record is <br />complete and reliable. The record is considered good, except for October 9-10, 2005; July 3-5, August <br />13-14, and August 19-20, 2006, which are fair due to lack of confirming measurements above 574 cfs since <br />1999, the assumed shift above a gage height of 4.53, and the possible inaccuracies with flows being too <br />fast for the 50 lb weight bridge measurement and too shallow for the 75 lb weight. The yearly peak flow <br />recorded on August 13, 2006 is also considered fair. Station maintained by Jana Ash and record <br />developed by Jana Ash and Russell Stroud. <br /> <br />RATING TABLE.--PLADENCO33 USED FROM 01-OCT-2005 TO 30-SEP-2006 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2005 TO SEPTEMBER 2006 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 154 121 97 118 130 98 131 174 332 334 151 308 <br /> 2 152 112 93 121 130 108 133 136 410 272 425 306 <br /> 3 152 119 157 119 154 105 131 142 448 588 313 307 <br /> 4 152 195 124 119 154 106 117 149 415 627 337 302 <br /> 5 177 176 102 118 157 103 108 132 351 438 277 277 <br /> 6 133 134 95 116 156 105 99 136 311 165 323 130 <br /> 7 136 131 93 115 148 105 260 137 305 415 424 150 <br /> 8 127 128 94 116 153 157 160 124 396 946 472 149 <br /> 9 467 149 100 117 148 156 114 138 281 1390 463 148 <br /> 10 1500 149 103 116 155 116 112 261 225 1150 440 127 <br /> 11 479 115 107 116 130 113 109 158 220 1180 399 144 <br /> 12 257 110 109 117 121 127 131 129 124 1090 401 350 <br /> 13 198 113 110 115 126 148 162 111 95 874 585 246 <br /> 14 165 125 108 128 126 117 124 109 80 778 671 161 <br /> 15 235 157 124 134 120 112 151 104 91 496 468 154 <br /> 16 236 109 135 135 124 109 117 98 197 333 355 116 <br /> 17 234 127 121 131 118 107 114 106 115 432 307 113 <br /> 18 171 233 119 102 115 110 202 137 135 235 383 111 <br /> 19 174 166 117 132 113 150 208 196 276 199 759 105 <br /> 20 181 156 119 158 117 208 127 290 186 245 459 109 <br /> 21 188 168 120 135 118 188 116 300 98 310 383 290 <br /> 22 182 181 125 117 124 176 104 338 88 418 383 244 <br /> 23 178 186 124 116 117 158 107 572 82 459 368 241 <br /> 24 180 188 123 136 96 150 128 542 131 459 355 230 <br /> 25 160 187 124 134 92 169 138 487 220 432 333 224 <br /> 26 148 188 124 106 91 173 114 303 132 357 299 215 <br /> 27 141 191 126 110 98 174 107 376 102 496 333 210 <br /> 28 122 188 126 121 98 172 245 366 84 505 446 208 <br /> 29 119 181 127 114 --- 120 146 322 238 367 434 205 <br /> 30 128 140 125 113 --- 118 126 347 388 346 414 206 <br /> 31 141 --- 122 119 --- 135 --- 336 --- 237 321 --- <br /> <br />TOTAL 7167 4623 3593 3764 3529 4193 4141 7256 6556 16573 12481 6086 <br />MEAN 231 154 116 121 126 135 138 234 219 535 403 203 <br />AC-FT 14220 9170 7130 7470 7000 8320 8210 14390 13000 32870 24760 12070 <br />MAX 1500 233 157 158 157 208 260 572 448 1390 759 350 <br />MIN 119 109 93 102 91 98 99 98 80 165 151 105 <br /> <br />CAL YR 2005 TOTAL 114414 MEAN 313 MAX 2220 MIN 83 AC-FT 226960 <br />WTR YR 2006 TOTAL 79962 MEAN 219 MAX 1500 MIN 80 AC-FT 158600 <br /> <br />MAX DISCH: 2860 CFS AT 22:30 ON Aug. 13, 2006 GH 6.68 FT. SHIFT 0.17 FT. <br />MAX GH: 6.68 FT. AT 22:30 ON Aug. 13, 2006