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<br />50
<br />
<br />FLOODS OF SEPT. 1970 IN ARIZ., UTAH, COLO., AND N. MEX.
<br />
<br />San Miguel River near Placerville, Colo.-Continued
<br />
<br />Gage height. in feet, and discharge. in cubic feet per second, at indicated time,
<br />o! San Miguel River near Placerville, Colo.
<br />
<br />STATION DATA-DOLORES RIVER BASIN
<br />
<br />51
<br />
<br />San Miguel River at Naturita, Colo.-Continued
<br />
<br />Gage height, in feet, and discharge. in cubic feet per second, at indicated time, 1970,
<br />of San Miguel River at Naturita, Colo.
<br />
<br />1970,
<br />
<br />Hour Gage Discharge Hour Gage Discharge Hour
<br /> height height
<br />2100 4.64 889 2000 3.94 420 1900
<br />2400 4.59 848 2300 4.45 736 2400
<br />
<br /> Gage Gage
<br />Hour height Discharge Hour height Discharge Hour
<br />1600 4.60 1,570 Sept. 13> 2400
<br />2000 4.29 1,350 0200 2.91 576
<br />2400 4.05 1,190 0400 5.16 2,100
<br />
<br />Gage
<br />height
<br />
<br />Discharge
<br />
<br />Gage
<br />height
<br />4.25
<br />4.16
<br />
<br />Discharge
<br />
<br />562
<br />508
<br />
<br />2.83
<br />
<br />564
<br />
<br />*Daily means computed frOm data ln addihon to figures shown.
<br />
<br />* Daily means computed from data in addition to figures shown.
<br />
<br />(9) 09175500. San Miguel River at Naturita, Colo.
<br />
<br />(10) 09175900. Dry Creek near Naturita, Colo.
<br />
<br />Location. --Lat 38013'05", long 108"33'55", in NEtNWt Sec. 30, T. 46 N., R. 15 W.,
<br />Montrose County, on left bank 20 ft (6 m) downstream from bridge on State Highway
<br />97 in Naturita and 1. 2 mi O. 9 km) downstream from Naturita Creek.
<br />Drainage area. --1,080 roi2 (2,800 !an2), approximately.
<br />
<br />Gag-e-heig-ht record. --Water-$tage recorder graph. Datum of gage is 5,392.85 ft
<br />(1, 643. 741 m) above mean sea level.
<br />
<br />Location. --Lat 38005'32", long 108"37117", in NEtNWt sec. 10, T. 44 N., R. 16 W.,
<br />San Miguel County, on right bank 50 ft (15 m) upstream from ford: 0.3 mi (0.5 Ian)
<br />upstream from unnamed tributary, 1. 2 roi (1.9 krn) downstream from Dead Horse
<br />Creek, 5 roi (8 krn) northwest of Basin, and 14 mi (23 km) south of Naturita.
<br />
<br />DiacharJ(e record. --Stage-discharge relation defined by cUrrent~meter measurements
<br />below 3, 800 ftJ/s (110 m3/s).
<br />
<br />Draina,:{e area. --85. 9 mi2 (222.5 km2).
<br />
<br />Gag-e-height record. --Water-stage recorder graph. Altitude of gage ia 6,270 ft
<br />(1,911 m), from topographic map.
<br />
<br />Maxima. --Sept. 4-18, 1970: Discharge, 2, 620 ft3/a (74.2 m 3/ a) 0630 hours Sept. 13
<br />(gage height, 5.63 ft or 1. 716 m).
<br />1917-29, 1940 to August 1970: Dischal"ge, 7,100 ft3/a (201 m3/s) Apr. 15, 1942
<br />(gage height, 9.80 ft or 2.987 m), from rating curve extended above 3,800 ft3/s
<br />(l10m3/a).
<br />
<br />Discharge record. - -Stage-discharge relation defined by current-meter measurements
<br />below 140 ft3/s (4.0 m3/s) and by slope-area measurements at 494 and 5,660 ft3/s
<br />(14.0 and 160 m3/s).
<br />
<br />Maxima. --Sept. 4-18, 1970: Discharge, 5,660 ft3/a (160 m3/s) 2130 hours Sept. 5
<br />----rgage height, 8.31 It or 2. 533 m). _
<br />1966 to August 1970: Discharge, 506 ft3/a (14. 3 m3/s) Aug. 7, 1967 (gage height,
<br />4.64 ft or 1. 414 m), from rating curve extended above 140 ft3/s (4.0 m3/a) on basis
<br />of slope-area measurement at gage height 4. 57 ft (1. 393 m).
<br />
<br /> Mean discharge, in cubic feet per second, 1970
<br />Day Discharge Day Discharge Day Discharge
<br />Sept. 4 125 Sept. 9 402 Sept. 14 985
<br /> 5 671 10 327 15 655
<br /> 6 1,610 11 248 16 519
<br /> 7 848 12 336 17 442
<br /> 8 514 13 1,420 18 388
<br />
<br />Gage helght, ln feet, and diSCharge, ln CUblC feet pe;' second, at indicated time, 1970,
<br />of San Miguel River at Naturita, Colo.
<br />
<br /> Mean discharge, in cubic feet per second, 1970
<br />Day Discharge Day Discharge Day Discharge
<br />Sept. 4 0.07 Sept. 9 0.46 Sept. 14 9.6
<br /> 5 1,030 10 .28 15 2.4
<br /> 6.. 106 11 .16 18 .52
<br /> 7 . . . 2.8 12 90 17 .28
<br /> 8 '" . 94 13 415 18 . 19
<br />
<br /> Gage Gage Gage
<br />Hour height Discharge Hour height Discharge Hour height Discharge
<br />Sept. 4 Sept. 7 Sept. 13> Con.
<br />2400 1. 58 123 0600 3.72 996 0630 5. 63 2,620
<br />Sept. 5 1400 3.36 800 0800 4.90 1,870
<br />0300 1. 61 128 1500 3.38 810 1100 4.33 ],4]0
<br />0500 1. 74 153 1630 3.32 780 1300 4.06 1,230
<br />0730 1. 82 169 1730 3.07 655 1600 3.97 1,180
<br />0830 1. 80 165 2400 2.83 542 2100 4.03 1,210
<br />1430 2.13 245 Sept. 11 2400 3.86 1,110
<br />1600 3.16 690 2400 2.04 225 Sept. 14>
<br />1900 4. 58 1,550 Sept. 12> 0200 3.82 1,090
<br />2000 4. 54 1,520 0130 2.10 242 0330 4.07 1,240
<br />2300 5.46 2,380 0600 2.08 236 0800 3.88 1,120
<br />2400 5.10 2,020 1100 2.01 218 1200 3.57 938
<br />Sept. 6 1900 2.15 257 2130 3.31 800
<br />0200 4.40 1,430 1930 2.95 596 2230 3.45 872
<br />0500 4.00 1,160 2100 2.80 528 2400 3.40 845
<br />0830 4.85 1,610 2300 3.84 1,070 Sept. IS>
<br />1030 5.34 2,260 2400 3.23 735 1200 3.00 645
<br />
<br />Gage height, in feet, and discharge, in cubic feet per second, at indicated time, 1970,
<br />of Dry Creek near Naturita, Colo.
<br />
<br /> Gage Gage Gage
<br />Hour height Discharge Hour height Discharge Hour height Discharge
<br />Sept. 4 Sept. .> Con. Sept. 13
<br />2400 0.77 0.1 0400 3.05 231 0030 5.00 590
<br />Sept. 5 0700 2.21 86 0200 7.17 3,240
<br />0900 .77 .1 1100 1.73 29 0300 6.78 2,560
<br />1100 .87 .3 1600 1. 43 12 0430 5.00 590
<br />1230 1. 76 26 2100 1.36 9.2 0600 3.65 326
<br />1400 2.86 186 2400 1.23 5.8 0830 2.35 98
<br />1500 4.05 400 Sept. 11 1030 1. 98 .7
<br />1600 5.00 590 2400 .75 .1 1600 1. 57 16
<br />1700 6.05 1,420 Sept. 12* 1630 1. 60 17
<br />1800 6. 76 2,520 1300 .75 .1 1700 1.56 15
<br />1900 7.26 3,420 1400 .80 .3 2400 1. 54 14
<br />1930 7.10 3,100 1600 .81 .3 Sept. 14
<br />2130 8.31 5.660 1700 5.06 80S 0600 1. 49 12
<br />2230 7.00 3,030 1800 3.90 373 1200 1. 41 9.6
<br />2400 5.65 934 1900 3.19 245 1800 1. 33 7.2
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