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<br />
<br />74 FLOODS OF SEPT. 1970 IN ARIZ., UTAH, COLO., AND N. MEX.
<br /> Hermosa Creek near Hermosa, Colo.-Continued
<br />Gage height, in feet, and di!'lcharge, in cubic feet per second, at indicated tiine.
<br /> of Hermosa Creek near Hermosa, Colo.
<br />Hour Gage Discharge Hour Gage Discharge Hour Gage
<br /> height height height Discharge
<br />Sept. 3 Sept. 6-Con. Sept, 13"'-Con.
<br />2400 0.78 38 1200 3.09 900 1000 1.75 238
<br />Sept. 4* 1800 2.61 615 1100 1. 94
<br /> 308
<br />0800 .77 38 2400 2.35 481 1200 2.16 396
<br />1800 .69 49 Sept. 7* 1330 2.20 414
<br />2030 1.03 66 1200 2.03 344 1400 2.34 476
<br />2400 1.12 80 2400 1.83 268 1730 2.28 450
<br />Sept. 5* Sept. 11 2400 2.17 400
<br />0200 1.16 67 2400 1,30 105 Sept. 14*
<br />1000 1.18 91 Sept. 12 1200 2.14 388
<br />1400 1. 42 150 0600 1.29 103 2400 2.02 340
<br />1600 1.88 304 1300 1.29 103
<br />1800 2.41 535 1800 1. 44 142
<br />2030 2.46 560 2230 1.87 280
<br />2400 3.81 1,400 2400 1.82 262
<br />Sept. 6 Sept. 13*
<br />0130 4.20 1,700 0200 1. 70 220
<br />0600 3.67 1,300 0700 1.66 207
<br />
<br />"'Daily means computed from data in addition to figures shown.
<br />
<br />(41) 0936IQOO. Animas River at Durango, Cola;
<br />
<br />Location. --Lat 37"16'45", long 107"52'47", in swt sec. 20, T. 35 N., R.9 W., La Plata
<br />County, on left bank at Western Colorado Power Co. 's plant at Durango, 0.8 mi (1. 3 km)
<br />upstream from Lightner Creek,
<br />
<br />Draina~e arE'a. --692 mi2 0,792 km2).
<br />
<br />Gage-height record. --Water. stage recorder graph. Datum of gage is 6,501. 57 ft
<br />0,981. 678 m) above mean sea level.
<br />
<br />Discharge record. --Stage-discharge relation d€'fined by current.rneter measurem~nts
<br />below 11,400 n3/s (323 m3/s).
<br />
<br />Maxima. --Sept. 4-18, 1970: Discharge, 11,600 n3/s (329 m 3/s) 1400 hours Sept. 6
<br />(gage height, 8.83 ft or 2. 691 m).
<br />1895 to August 1970: Discharge, 25,000 n3/s (708 m3/s) Oct. 5, 1911 (gage height,
<br />11 ft or 3.4 ro, present site and datum), from rating curve extended above 13,000 ft3/s
<br />(368 m3/s).
<br />Maximum flood known, that of Oct. 5, I~Il.
<br />
<br />Day
<br />Sept. 4
<br />5
<br />6
<br />7
<br />8
<br />
<br />Mean diSCharge, in cubic feet per second,
<br />
<br />Discharge Day Discharge
<br />
<br />436 Sept. 9 1,900
<br />1,070 10 1,490
<br />7,740 11 1,260
<br />5,330 12 1. 130
<br />2,640 13 2,990
<br />
<br />Discharge
<br />5,030
<br />3,480
<br />2,330
<br />1,760
<br />1,480
<br />
<br />1970
<br />Day
<br />Sept. 14
<br />15
<br />16
<br />17
<br />18
<br />
<br />Gage height, in feet, and discharge, in cubic feet per second, at indicated time, 1970,
<br />. of Animas River at Durango, Colo.
<br />Discharge Hour Gage Discharge Hour
<br />height
<br />6.-Con.
<br />8.40
<br />7.80
<br />
<br />Hour
<br />
<br />Gage
<br />height
<br />
<br />Discharge
<br />
<br />Gage
<br />height
<br />Sept. 13-Con,
<br />1400 4. 60
<br />1700 5. 40
<br />
<br />Sept.
<br />2400
<br />Sept.
<br />
<br />Sept.
<br />1800
<br />2100
<br />
<br />10,600
<br />9,160
<br />
<br />4
<br />
<br />2.82
<br />
<br />522
<br />
<br />2,880
<br />4,210
<br />
<br />5'
<br />
<br />STATION DATA-SAN JUAN RIVER BASIN
<br />
<br />7:
<br />
<br />Animas River at Durango, Colo.-Continued
<br />
<br />Gage height, in feet, and discharge. in cubic feet pel" second, at indicated time, 1970,
<br />of Animas River at Durango. Colo.
<br />
<br />Hour Gage Discharge Hour Gage Discharge Hour Gage Discharg'
<br />height height height
<br />0500 2,99 864 2400 7.35 8, 120 2000 5.75 4,880
<br />1100 3.31 980 Sept. 7 2400 5.88 5,140
<br />1300 3.31 980 0200 7. 06 7,530 Sept. 14*
<br />1700 3.45 1,140 0700 6.49 6,320 0200 5.95 5,260
<br />2000 3,71 1,450 1300 5. 75 4,780 0500 6. 03 5,460
<br />2300 4.27 2,180 1400 5.45 4,240 0800 6.00 5,390
<br />2400 4.80 2,920 1630 4.97 3,420 1000 5.95 5,280
<br />Sept. 6* 2400 4. 80 3,140 1800 5.68 4,740
<br />0100 5.34 3,790 Sept. 8 2400 5.50 4,390
<br />0300 5.88 4,800 0600 4.61 2,850 Sept. 15*
<br />0600 6.05 5,140 1200 4.44 2,610 1200 4,,97 3,430
<br />0800 6,05 5,140 1800 4.30 2,420 2400 4.52 2,710
<br />1000 6.40 5,900 2400 4.1l 2,180 Sept. 16*
<br />1100 7.40 8,100 S~pt. 12 1200 4.23 2,300
<br />1200 6.15 9,900 2400 3.31 1,180 2400 4.02 2,010
<br />1300 8. 55 10,900 Sept. 13
<br />1400 8.83 11,600 0500 3,90 1,900
<br />1500 8.78 11,400 1100 4.07 2,140
<br />
<br />* Daily means computed from data in addlhon to figures shown.
<br />
<br />(42) 09363050. Florida River below Florida Farmers ditch, near Durango, Colo.
<br />
<br />Location. --Lat 37"17'42", long 107"47'28", in swtswt sec. 18, T. 35 N., R.8 W., La
<br />Plata County, on right bank 30 ft (9 rn) downstream from diversion dam for Florida
<br />Farmers ditch and 4.0 mi (6 Ian) east of Riverview School in Durango.
<br />
<br />Drainage area. --108 mi2 (280 km2).
<br />
<br />Gage-height record. .-Water-stage recorder graph, Datum of gage is 7,065.35 ft
<br />(2,153.519 m) above mean sea level (levels by Bureau of Reclamation).
<br />
<br />DiSCharge record. --Stage-discharge relation defined by current-meter measurements
<br />below 460 ft3/s (13 m3/s).
<br />
<br />~. --Sept. 4-16, 1970: Discharge, 236 ft3/s (6. 68 m3/a) 0500 hours Sept. 14
<br />(gage height, 3.52 ft or 1. 073 mI.
<br />1967 to August 1970: Discharge, 598 ft3/l; (16.9 m3/s) May 18, 1970 (gage
<br />height. 4,64 ft or 1. 414 m).
<br />
<br />Remarks. --Flow regulated by Lemon Reservoir (capacity, 40,100 acre-ft or 49,4 hm3).
<br />Records do not represent storm runoff but inflow to flood area.
<br />
<br />Day
<br />Sept. 4
<br />5
<br />6
<br />7
<br />8
<br />
<br />Mean discharge, in cubic feet per second,
<br />
<br />Discharge Day Discharge
<br />
<br />5. 0 Sept. 9 61
<br />19 10 58
<br />83 11 56
<br />70 12 56
<br />66 13 75
<br />
<br />Discharge
<br />216
<br />214
<br />206
<br />204
<br />202
<br />
<br />1970
<br />
<br />Day
<br />Sept. 14
<br />15
<br />16
<br />17
<br />18
<br />
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