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<br />76
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<br />FLOODS OF SEPT. 1970 IN ARIZ., UTAH, COLO., AND N. MEX.
<br />
<br />STATION DATA-SAN JUAN RIVER BASIN
<br />
<br />77
<br />
<br />(43) 09363100. Salt Creek near Oxford, Colo.
<br />
<br />(44) 09363200. Florida River at Bondad, Colo.
<br />Location. --Lat 37003'2111, long 10'lO52'lO". in st sec. 31, T. 33 N.. R. 9 W.. La Plata
<br />County. on left bank O. 6 mi (1. 0 kIn) upstream from mouth, 0.7 mi 0, 1 \un) south-
<br />east of Handad, and 15 mi (24 kIn) south of Durango.
<br />Draina~e area. --221 mi2 (572 km2),
<br />Gag"e-height record. --Water-stage recorder graph. Altitude of gage is 6,000 ft
<br />(1,829 m), from topographic map.
<br />
<br />Location. --Lat 37"08'20". long 107"45'10", in NEt sec. 6, T. 33 N.. R. 8 W.. La Plata
<br />County, on right bank 2. 2 mi (3.5 km) upstream from mouth, 3 mi (5 km) southwest
<br />of Oxford, and 11 mi (18 km) southeast of Durango.
<br />
<br />Drainage area. --16. 7 mi2 (43.3 kro2"
<br />
<br />Gage-height record. --Water-stage recorder graph. Altitude of gage is 6,470 ft
<br />0,972 m), from topographic map.
<br />
<br />Dischar e- record. --Stage-discharge relation defined by current-meter measurements
<br />below 200 ft s (5.7 m3ts).
<br />
<br />Discharg"e record. --Stage-discharge relation defined by cUrrent-meter measurements
<br />below 430.ftJ/s (12.2 m3/s).
<br />Maxima. --Sept. 4-18, 1970: Discharge, 760 ft3/s (21. 5 m3/s) 2100 hours Sept. 5
<br />(gage height,S. 11 ft or 1. 558 m).
<br />1956-63, 1967 to August 1970: Discharge, 1,430 ft3/s (40.5 ro3/s) June 7, 1958
<br />(gage height, 4.35 ft or 1. 326 m, at site 300 it or 90 ro upstream at da.tum 2.39 ft
<br />or O. 728 m higher), but may have been higher on July 26, 1957.
<br />Remarks. --Flow regulated by Lemon Reservoir (capacity, 40,100 acre-ft or 49.4 hm3)
<br />since November 1963.
<br />
<br />Maxima. --Sept. 4-18, 1970; Discharge, 477 ft3/s (13.5 m3/s) 0430 hours Sept. 6
<br />(gage height, 4.45 ft or 1. 356 m).
<br />1956-63, 1967 to August 1970: Discharge, 713 ft3/s (20.2 ro3/s) Aug. 6, 1957
<br />(gage- height, 5.18 ft or 1. 579 m, at site 0.2 mi or 0.3 km upstream at different
<br />datum).
<br />
<br /> Mean discharge, in cubic feet per second, 1970
<br />Day Discharge D.y Discharge D.y Discharge
<br />Sept. 4 35 Sept. 9 18 Se-pt. 14 65
<br /> 5 95 10 22 15 21
<br /> , 214 11 24 16 19
<br /> 7 22 12 32 .17 19
<br /> 8 16 13 37 18 16
<br />
<br /> Mean discharge, in cubic feet per second, 1970
<br />D.y Discharge D.y Discharge D'y Discharge
<br />Sept. 4 49 Sept. 9 118 Sept. 14 274
<br /> 5 190 10 114 15 253
<br /> 6 460 11 112 16 238
<br /> 7 162 12 122 17 238
<br /> 8 132 13 144 18 229
<br />
<br />Gage height, in feet, and discharge, in cubic feet per second, at indicated time. 1970
<br />
<br />Hour Gage Discharge Hour Gage Discharge Hour Gage Discharge
<br /> height height height
<br />Sept. 3 Sept. , Con. Sept. 13 Con.
<br />2400 2.20 24 1600 3.18 101 2400 2.34 20
<br />Sept. 4' 2000 2.84 59 Sept. 14
<br />1200 2.30 29 2400 2.59 35 0130 2.31 19
<br />2000 2.59 55 Sept. 7' 0500 2.31 19
<br />2400 2.66 61 0500 2.40 24 0530 3.07 93
<br />Sept. 5' 1500 2.35 21 0600 2.80 57
<br />0130 2.73 67 2400 2.24 16 0630 3.00 83
<br />0400 2.70 63 Sept. 11 0700 2.80 57
<br />0800 2.83 80 2400 2.38 22 0800 2.95 "
<br />1030 2.72 66 Sept. 12' 0900 2.91 71
<br />1600 2.91 8' 1530 2.48 28 1I00 3. II 105
<br />2000 3.22 135 1600 2.95 76 1500 2.88 73
<br />2100 3.38 169 1700 2.62 33 1700 3.07 105
<br />2400 3.62 225 1930 2.65 41 2100 2.75 62
<br />Sept. 6 2400 2.72 48 2400 2.45 33
<br />0200 4.00 341 Sept. 13 Sept. 15'
<br />0300 4.10 369 0500 2.65 41 0600 2.21 21
<br />0430 4.45 477 1700 2.61 37 1200 2.14 19
<br />0900 4.00 324 2000 2.55 33 2400 2.07 16
<br />1300 3.55 188 2200 2.36 22
<br />
<br />Gage height, in feet, and discharge, in cubic feet per second, at indicated time, 1970
<br />
<br />* Dally means computed from data 10 addItIon to fIgures shown.
<br />
<br />Hour Gage Discharge Hour Gage Discharge Hour Gage Discharge
<br /> height height height
<br />Sept. 3 Sept. 5*-Con. Sept. 13' Con.
<br />2400 2.87 40 2400 4.50 466 2000 3.58 164
<br />Sept. .. Sept. 6 2400 3.58 164
<br />1100 2.90 43 0100 4.62 515 Sept. 14
<br />1800 3.04 58 0200 4.31 390 0300 3.48 144
<br />2400 3.17 76 0400 4.67 540 0400 3.48 144
<br />Sept. 5' 1000 5.04 725 0600 4.08 308
<br />0200 3.37 110 1730 4.18 340 0800 3.71 198
<br />0300 3.29 96 2400 3.85 232 1000 4. 10 315
<br />1000 3. 32 101 Sept. 7' 1100 4.08 308
<br />1300 3.43 122 0600 3.62 172 1500 4.20 354
<br />1530 3.47 130 1200 3.52 152 2000 4.06 304
<br />1900 3. 55 146 2400 3.44 136 2200 4.07 308
<br />2000 3.93 247 Sept. 12 2400 4.01 287
<br />2100 5, 11 760 2400 3.44 136 Sept. 15'
<br />2130 4.72 565 Sept. 13' 1200 3.89 250
<br />2200 4.93 670 1200 3.43 134 2400 3.86 241
<br />2330 4.40 426 1800 3.45 138
<br />
<br />* Daily means computed from data In additIOn to figures shown.
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