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36 <br /> <br />PLATTE RIVER BASIN <br /> <br />06738000 BIG THOMPSON RIVER AT MOUTH OF CANYON, NEAR DRAKE, CO <br /> <br />LOCATION.--Lat 40°25'18", long 105°13'34", in SW¼SW¼ sec. 3, T,5 N., R.70 W., Larimer County, Hydrologic <br />Unit 10190006, on right bank at mouth of canyon, 400 ft upstream from Handy Ditch diversion dam, and <br />6.0 mi east of Drake. <br /> <br />DRAINAGE AREA.--305 mi². <br /> <br />GAGE.--Water-stage recorder with satellite telemetry and shaft encoder activated by manometer in a concrete <br />shelter with outside wire weight for reference. A bank operated cable way was added in 1997 for <br />intermediate flow measurements. <br /> <br />REMARKS.--Record is complete and reliable except for Dec. 2, 1996-Mar. 18, 1997, when the control was <br />frozen and the station was closed. Record is reliable except for Apr. 10, 1997 when orifice was <br />plugged. Discharge for Apr. 10 was estimated from adjacent good record. The record is good, except <br />for the winter period, which is poor. Station maintained and record developed by Merlin <br />Friedrichsen. <br /> <br />RATING TABLE.--BTCANYCO15 USED FROM 01-OCT-1996 TO 30-SEP-1997 <br /> <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 99 47 31 30 25 30 38 117 501 254 73 140 <br /> 2 98 51 28 29 30 29 41 41 784 330 59 147 <br /> 3 112 59 35 29 28 28 39 40 944 327 56 125 <br /> 4 110 49 30 33 31 28 41 39 838 332 98 114 <br /> 5 92 31 29 30 30 28 43 40 816 396 97 114 <br /> 6 88 29 32 29 29 28 41 49 867 394 81 113 <br /> 7 81 23 31 27 30 29 32 64 1010 357 85 112 <br /> 8 69 30 29 31 28 29 31 72 902 381 102 111 <br /> 9 63 35 30 30 28 28 31 92 1100 377 105 107 <br /> 10 75 33 20 31 27 30 34 259 1080 350 81 107 <br /> 11 74 30 24 31 23 28 38 344 912 298 193 105 <br /> 12 72 33 24 31 23 30 36 367 904 273 220 101 <br /> 13 75 34 28 31 30 32 35 336 828 184 139 96 <br /> 14 64 33 30 31 30 31 37 312 753 91 81 94 <br /> 15 66 33 33 29 30 32 38 382 708 78 76 65 <br /> 16 66 31 31 32 28 26 38 462 694 72 73 35 <br /> 17 58 29 33 32 28 30 43 386 593 63 56 34 <br /> 18 60 39 34 28 28 43 54 502 584 75 52 34 <br /> 19 61 37 31 26 33 37 66 366 701 77 54 35 <br /> 20 66 34 30 29 33 34 72 265 754 63 64 37 <br /> 21 60 32 30 30 31 41 85 571 834 52 67 42 <br /> 22 49 32 30 31 28 46 71 779 752 77 73 48 <br /> 23 53 32 31 31 28 41 79 1100 680 107 61 48 <br /> 24 51 31 32 31 28 40 107 641 635 83 51 44 <br /> 25 56 32 31 31 28 42 111 423 522 62 78 38 <br /> 26 57 33 30 29 27 41 120 302 428 70 83 36 <br /> 27 54 30 28 29 24 38 131 193 343 98 69 36 <br /> 28 52 29 31 31 28 38 161 124 315 84 69 36 <br /> 29 51 34 31 29 --- 39 210 87 267 71 126 36 <br /> 30 49 35 30 29 --- 35 296 142 232 58 144 91 <br /> 31 49 --- 30 29 --- 36 --- 379 --- 71 139 --- <br /> <br /> TOTAL 2130 1040 927 929 794 1047 2199 9276 21281 5605 2805 2281 <br /> MEAN 68.7 34.7 29.9 30.0 28.4 33.8 73.3 299 709 181 90.5 76.0 <br /> AC-FT 4220 2060 1840 1840 1570 2080 4360 18400 42210 11120 5560 4520 <br /> MAX 112 59 35 33 33 46 296 1100 1100 396 220 147 <br /> MIN 49 23 20 26 23 26 31 39 232 52 51 34 <br /> <br /> CAL YR 1996 TOTAL 39470 MEAN 108 MAX 655 MIN 20 AC-FT 78290 <br /> WTR YR 1997 TOTAL 50314 MEAN 138 MAX 1100 MIN 20 AC-FT 99800 <br /> <br /> MAX DISCH 1170 CFS AT 0330 09-JUN-1997 GH 4.42 FT. SHIFT -0.03 FT. MAX GH 4.42 FT. AT 0330 09-JUN-1997 <br /> <br /> FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />OctNovDecJanFebMarAprMayJunJulAugSep