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<br />FLOODS OF SEPT. 1970 IN ARIZ., UTAH, COLO., AND N. MEX.
<br />
<br />Dry Creek near Naturita, Colo.-Continued
<br />
<br />Gage height. in feet, and discharge. in cubic feet per second, at indicated time, 1970.
<br />of Dry Creek near Naturits.. Colo.
<br />
<br />G...
<br />Discharge HouI'" height Discharge HoUl:'
<br />
<br /> Gage
<br />Hour height
<br />Sept. G'
<br />0030 5.00
<br />0130 4,08
<br />
<br />Ga..
<br />height
<br />
<br />Discharge
<br />
<br />1930
<br />2030
<br />2400
<br />
<br />3.27
<br />3.27
<br />2.33
<br />
<br />G05
<br />41G
<br />
<br />280
<br />280
<br />95
<br />
<br />2400
<br />
<br />1. 25
<br />
<br />5,1
<br />
<br />. Daily means computed fl'om data in addition to figures shown.
<br />
<br />(11) 09177000. San Miguel River at Uravan. Colo.
<br />
<br />(Gaging station, discontinued 1962)
<br />
<br />Location. --Lat 38G21'25". long 108"42'40". in SWtNEt sec. 2, T. 47 N.. R. 17 W.. on
<br />right bank 20 it (6 m) downstream from bridge on State Highway HI, 300 ft (90 m)
<br />downstream from Tabeguache Creek, and 1.2 mt (1. 9 km) southeast of Uravan.
<br />Drainage area. --I, 550 mi2 (4,010 kIn2), approximately.
<br />Ga,ll"e-hei,ll"ht record. --Floodmarks only. Altitude of gage is 5,000 ft (1,520 m), from
<br />topographic map.
<br />Maxima.--Sept. 4-18,1970: Discharge, 8,910ft3/s(252m3/s)0230hoursSept. 6
<br />(gage height, 11.2 it or 3.41 m, from floodrnarks in gage well; 12.6 ft or 3.84 III,
<br />from tloodmarks outside gage well), by slope-area measurement at site 5. 5 mi
<br />(8.8 kIn) downstream.
<br />1954-62: Discharge, 6,690 it3/s (189 m3,s) Apr. 19. 1958 (gage height, 11. 75 ft
<br />or 3. 581 m, site and datum then in use). Peak of Apr. 20, 1965, was probably
<br />higher.
<br />
<br />(12) 09179500. Dolores River at Gateway, Cola,
<br />
<br />(Gaging station, discontinued 1954)
<br />
<br />Location. --Lat 38040'55'1, long 108058'5011, in 8wt sec. 15, T. 51 N., R. 19 W., on
<br />rlght bank 500 it (150 m) downstream from bridge on State Highway 141, 0.3 roi
<br />(0.5 lan) northwest of Gateway.
<br />Drainage area. --4, 350 mi2 (11,270 km2), approximately.
<br />Gaj;l:e-height record. --Floodmarks only. Datum of gage is 4,547.76 it 0,386. 157 m)
<br />above mean sea l..evel, datum of 1929.
<br />
<br />Maxima. --Sept. 4-18, 1970: Discharge, 6,350 it31s (180 m3/s) Sept. 6 (gage height,
<br />~t or 2. 35 rn, from profile), bI slope-area meaSurement of peak flow.
<br />1936-54: Discharge, 15,400 It Is (436 m3/s) May 14, 1941 (gage height, 11.33 it
<br />or 3.453 m).
<br />
<br />STATION DATA-DOLORES RIVER BASIN
<br />TRIBUTARIES BETWEEN DOLORES RIVER AND GREEN RIVEFt
<br />03} 09187000. Cottonwood Creek near Monticello, Utah
<br />
<br />53
<br />
<br />i
<br />-,
<br />
<br />(Crest-stage station)
<br />
<br />Location. --Lat 380031, long 109034', in NEt sec. 36, T. 31 S.. R. 21 E., San Juan County.
<br />1 mi (2 lon) above mouth and 18 mi (29 kIn) northwest of Monticello.
<br />
<br />Drainatte ar,ea. --115 mi2 (298 kro2).
<br />Gage-height record. --Crest stages only. Altitude of gage is 5.340 it (1,628 m), from
<br />topographic map.
<br />Discharge record. --Stage.discharge relation defined by current-meter mea~ure~ents
<br />below 100 ft;J/s (2. 8 m3ls) and by slope-area measurements at the followmg djs-
<br />charges: 1.520, 1,680,2,210, and 6.100 ft31s (43.0,47.6.62.6, and 173 m Is).
<br />Maxima. --Sept. 4-18, 1970: Discharge. 3,500 ft3,s (99. 1 m3/s) Sept. 12 (iti'side gage
<br />height, 7. SS tt or 2. 402 m; outside gage height, 12.78 it or 3.895 3m).
<br />1950-57, 1959 to August 1970: Discharge, 2.210 it3/s (62. 6 m Is) Aug. 5, 1959;
<br />inside gage height, 6.82 it (2.079 m) Aug. 18, 1963.
<br />
<br />.
<br />
<br />(14) 09187500. Indian Creek above Harts Draw. near Monticello, Utah
<br />(Gaging station, discontinued 1957)
<br />Location. --Lat 3800812511, long 109~37'2511, in Nwt sec. 33. T~ 30 S., R. 21 E., San Jua.n
<br />County, 5 mi (8 km) upstream from Harts Orawand 24 mi (39 km) northwest of
<br />Monticello.
<br />Drainatte area. --258 mi2 (668 km2),
<br />Gage-height record. --Floodmarks only, Altitude of gage is 4,920 it (1.500 m). by
<br />barometer.
<br />
<br />Discharge record. - -Stage-discharge relation defined by current-meter mea~ure~ents
<br />below 200 ft,jls (5. 7 m3ls) and by slope-area measut"ements at the followlC3g dIS-
<br />charges: 620. 820, 2.240, and 2, 850 ft31s 0.1.6, 23.2, 63.4. and 80. 7 m Is).
<br />Maxima. --Sept. 4-18, 1970: Discharge, 4,400 it3/s (125 m3/s) sept. 12 (gage height,
<br />~ftor2.987m). 3
<br />1949-57: Discharge, 3, 120 ft3/s (88.4 m Is) Aug. 3D, 1957 (gage height, 9.21 it
<br />or 2. 807m, trom floodmal'k).
<br />
<br />.
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