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34 <br /> <br />PLATTE RIVER BASIN <br /> <br />06736000 NORTH FORK BIG THOMPSON RIVER AT DRAKE, CO <br /> <br />LOCATION.--Lat 40°20'45", long 105°26'30", NW¼ sec. 3, T.5 N., R.71 W., Larimer County, 400 ft upstream <br />from mouth at Drake, Co. on U. S. Highway 34 to Estes Park, Co. <br /> <br />DRAINAGE AREA.--85.1 mi². <br /> <br />GAGE.--Graphic water-stage recorder with satellite telemetry. The graphic chart was the primary record <br />until Mar. 21, 1994 when a DCP and shaft encoder belonging to the DWR was installed due to the <br />unreliability of the NWS DCP. From then on the DCP is the primary record using the graphic chart as <br />backup. <br /> <br />REMARKS.--Record is complete and reliable except for the following periods: Nov. 27, 1996-Mar. 27, 1997 <br />when the station was closed and Apr. 10-15, 1997 when the inlets were frozen. Record was ice <br />affected Nov. 7-8, 24, 1996. DCP record agrees with the graphic chart within +/- 0.02. The record <br />is good, except for periods of no gage-height record and ice effect, which is poor. Station <br />maintained and record developed by Merlin Friedrichsen. <br /> <br />RATING TABLE.--BTNFDRCO10 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 18 13 8.0 9.0 8.0 7.0 8.4 73 119 106 58 46 <br /> 2 17 14 8.0 9.0 8.0 7.0 7.8 65 137 98 52 49 <br /> 3 17 14 8.0 9.0 7.0 7.0 8.1 58 162 96 47 45 <br /> 4 19 12 8.0 9.0 7.0 7.0 10 58 154 92 49 44 <br /> 5 18 11 8.0 8.0 6.0 7.0 8.8 67 163 89 68 41 <br /> 6 17 9.3 8.0 7.0 6.0 7.0 7.2 77 197 84 99 39 <br /> 7 17 11 8.0 7.0 6.0 8.0 8.3 82 293 79 77 36 <br /> 8 16 12 8.0 7.0 6.0 8.0 8.5 82 240 77 63 35 <br /> 9 15 14 8.0 7.0 6.0 8.0 8.0 78 382 74 59 33 <br /> 10 14 11 8.0 7.0 6.0 8.0 8.0 76 387 70 108 32 <br /> 11 14 12 8.0 6.0 6.0 8.0 8.0 75 352 70 106 31 <br /> 12 14 12 8.0 6.0 6.0 9.0 8.0 70 314 66 93 29 <br /> 13 14 11 8.0 6.0 6.0 9.0 8.0 66 290 62 84 28 <br /> 14 14 11 8.0 7.0 6.0 8.0 8.0 69 275 59 81 27 <br /> 15 14 11 7.0 7.0 6.0 8.0 8.0 71 252 55 73 26 <br /> 16 15 9.9 7.0 7.0 7.0 8.0 9.1 75 224 53 69 26 <br /> 17 14 19 7.0 7.0 7.0 9.0 10 86 212 52 68 24 <br /> 18 14 23 7.0 7.0 7.0 9.0 11 94 208 52 64 23 <br /> 19 16 14 7.0 7.0 7.0 9.0 12 101 215 52 63 36 <br /> 20 15 12 8.0 7.0 7.0 9.0 15 99 208 55 60 63 <br /> 21 9.4 11 8.0 7.0 6.0 9.0 16 100 202 52 56 56 <br /> 22 12 10 8.0 7.0 6.0 9.0 15 134 191 49 60 49 <br /> 23 18 10 8.0 7.0 6.0 9.0 16 136 180 47 60 51 <br /> 24 15 7.0 8.0 7.0 6.0 9.0 14 135 175 46 55 51 <br /> 25 15 10 8.0 7.0 6.0 8.0 18 123 158 42 54 46 <br /> 26 14 9.1 8.0 7.0 7.0 8.0 23 113 142 40 63 43 <br /> 27 14 8.0 9.0 7.0 7.0 10 26 101 133 39 57 42 <br /> 28 14 8.0 9.0 7.0 7.0 8.2 40 96 125 41 55 39 <br /> 29 14 8.0 9.0 7.0 --- 8.5 64 95 119 49 54 39 <br /> 30 14 8.0 9.0 7.0 --- 7.4 80 95 113 54 51 38 <br /> 31 13 --- 9.0 8.0 --- 8.4 --- 100 --- 57 48 --- <br /> <br /> TOTAL 464.4 345.3 248.0 224.0 182.0 254.5 492.2 2750 6322 1957 2054 1167 <br /> MEAN 15.0 11.5 8.00 7.23 6.50 8.21 16.4 88.7 211 63.1 66.3 38.9 <br /> AC-FT 921 685 492 444 361 505 976 5450 12540 3880 4070 2310 <br /> MAX 19 23 9.0 9.0 8.0 10 80 136 387 106 108 63 <br /> MIN 9.4 7.0 7.0 6.0 6.0 7.0 7.2 58 113 39 47 23 <br /> <br /> CAL YR 1996 TOTAL 11473.6 MEAN 31.3 MAX 151 MIN 6.2 AC-FT 22760 <br /> WTR YR 1997 TOTAL 16460.4 MEAN 45.1 MAX 387 MIN 6.0 AC-FT 32650 <br /> <br /> MAX DISCH 425 CFS AT 1930 09-JUN-1997 GH 5.32 FT. SHIFT -0.13 FT. MAX GH 5.32 FT. AT 1930 09-JUN-1997 <br /> <br /> FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br />0 <br />100 <br />200 <br />300 <br />400 <br />500 <br />OctNovDecJanFebMarAprMayJunJulAugSep