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<br />TRINITYRIVERGASIN
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<br />08056500 Turtle Creek at Dal1as, Tex.
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<br />LOCATION.--Lat 32048'26", long 96"48'08", Dallas County, on left bank 68 ft upstream from Hall Street DalT', 210 ft upstrealll frolll
<br />Hall Street in Oa11as, dnd 2.0 miles north of Dallas County Courthouse.
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<br />DRAINAGE AREA. -7.98 sq nil.
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<br />PeRIOD OF RECORD.--Annual f;ldxilllums, water years 1948~5l. October 1951 to current year. Daily discharge records for April 1948
<br />to Septenlber 1951, published in\-ISP 1392, are unreliable and should not be used.
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<br />GAGE.--Watcr-stage recorder and concrete control. Datum of gage is 428.13 ft above mean sea level. Prior to Dec. 17, 1951, at
<br />site 52 ftupstreanlat same datum.
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<br />AVERAGE DISCHARGE. -20 years, 7.54 cfs (12.83 inches per year, 5,460 acre~ft per year).
<br />
<br />EXTREMES.--Current year: Maximum diSCharge, 2,400 cfs Aug. 14 (gage height, 5.87 ft); minimum daily, 0.52 cfs May 21-
<br />Period of record: Maximum discharge, 12,200 cfs Apr. 28, 1966 (gage height, 10.54 ft), from rating curve extended above
<br />2.460 cfs on basis of contracted-opening measurement of 12.200 cfs; no flow at times.
<br />Maxinlunl stage since at least 1903. that of April 28, 1966.
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<br />RE~IARKS. --Records good. Records include flow released on Oct. 7,13 through valve in Hail Street Odm. Flovl slightly regLOlated
<br /> by eight small channel dams above station. Five recording rain gages are operated in basin above station.
<br />REVISIONS (WATER YEARS) .-~See PERIOD OF RECORD.
<br /> DISCHARGE, IN CUBIC FEET PER SEC(j~D, WATER YEAR OCTOBER 1970 TO SEPTEMBER 1971
<br />CAY OCT ,\lev DfC J" fEe MAR ,PR M" JUN JUL 'uo Sfp
<br /> 1.9 t.8 1.1 2.2 1.1 2.1 .83 1.5 2.4 1.2 I.T 1.4
<br /> 1.7 1.4 1.2 1.' .72 " .15 1.3 2.2 1.3 I.n 17
<br /> , 1.7 1.2 1.2 11 .1l1 5.8 1.1 .91 1.7 1.1 1.5 4.3
<br /> 4 1.8 1.;) .95 2.4 T.n 2.2 1.7 .79 1.fJ .92 54 1.9
<br /> 5 3.6 I.S 1.2 1.2 1.5 2.0 3.4 .91 1.7 .81 6.6 1.'
<br /> , 3,] 1.4 .95 1.4 .99 1.7 1.0 1.9 1.8 .sa 3.9 1.7
<br /> 1 1.9 3.3 .86 1.5 ." 1.1 .84 1.7 1.4 .72 2.4 1.2
<br /> J 11 1.4 .78 1.5 .86 1.3 .84 .90 .n .83 2.1 .go
<br /> 9 I.' .95 .95 1.6 .94 1.3 .RA .85 .92 .88 2.5 .PO
<br /> 1') 1.2 .78 1.0 1.5 1.2 1.2 1.2 1.0 .91 1.0 2.4 .87
<br /> 11 67 .95 1.2 1.4 1.1 1.7 1.3 1.3 .82 .sa 1.6 .R6
<br /> 12 11 1.2 .B6 1.2 .92 1.3 1.2 .86 .15 .19 1.3 .80
<br /> 13 :.5 18 .71 1.8 .66 1.5 .85 .7. .68 ..8 5.7 1.1
<br /> t4 1.0 3.8 .7P 1.8 .Ra t.4 .69 .62 .70 .19 2lT 1.3
<br /> 15 1.5 1.5 4.2 1.2 .92 1,] .73 .63 .80 .77 5.8 .no
<br /> l& 1.5 1.4 1.9 1.2 .82 .82 12 ..2 1.1 .72 3.5 ..8
<br /> " 1.5 1.5 I.. 1.2 1.0 .82 100 .57 .96 .82 2.7 .74
<br /> 18 1.8 1.4 1.6 1.0 9.3 3.0 " .61 .79 1.1 2.4 ."
<br /> 19 1.5 1.2 1.4 .8. 3.3 1.5 4.3 1.4 .65 3.T 2.1 .04
<br /> b' 1.4 .86 .86 .8. 103 1.0 21 ..5 .64 2.5 1.8 .64
<br /> 21 1.4 .86 1.2 1.2 40 1.5 3.. .52 79 1.2 1.6 .go
<br /> " 1.5 2.0 1.4 1.0 2.2 1.5 2.9 .54 3.3 1.2 1.5 30
<br /> " 62 1.2 1.0 .86 1.8 .83 2.4 .61 2.2 5.9 1.2 18
<br /> 24 3.2 .SO .7t 1.2 1.8 .80 1.8 ..0 1.8 23 78 .5
<br /> 25 2.2 1.1 .78 1.2 19 1.1 I.. .55 1.3 3.1 39 18
<br /> " 5.9 1.2 .75 1.0 3.6 1.4 1.2 .55 1.1 1.7 4.. 3.0
<br /> " 3.2 1.3 .7S .B6 1.6 1.3 1.1 '" 1.1 4.9 2.9 2.1
<br /> 2 ~, 1.6 1.3 .86 1.0 2.4 I.. 1.5 2.9 lB 12;) 2.4 1.7
<br /> '9 t.5 1.3 .83 .95 1.3 9.2 .8 3.. 21 2.' 1.4
<br /> 3:' 1.. I.. 36 .85 .70 2.2 4.' 1.4 4.2 1.8 1.4
<br /> H 1.5 7.B 103 .85 2.8 2.3 1.7
<br />TUT~l 2'J6.\ 5A.9'1 72.45 4CJ.84 1C8.36 ~9. 72 221.01 247.35 13b.14 210.91 4'>9. "3 201.35
<br />r/f~..~ 6.65 1.'H 2.34 1.61 3.87 1.93 1.:n 7.98 4.54 6.80 14.B 6.71
<br />.".AX .7 18 3. II 40 14 ICe '4. 79 120 217 65
<br />1'1[" 1.0 .78 .71 .eo .66 .70 ..9 .52 .64 .., 1.2 .54
<br />CFSM . 8 ~ .2') .29 .20 .4' .l4 .92 1.00 .57 .85 1.85 .RA
<br />". ... .21 .34 .7.3 .01 .28 1.G3 1.15 .63 .98 2.14 .94
<br />!,:;-FT 409 117 144 99 215 118 438 491 21.J 418 911 399
<br />(tt) 2.62 .51 .96 .28 1.62 .46 2.94 3.33 1.78 3.42 5.50 2.95
<br /> 3,310.78 MEAN 9.07 MAX 333 MlN .32 CFSM 1.14 IN 15.43 AC-FT 0,570 t, 35.45
<br />CAL VR 1970 TOTAL .70 IN 9.47 AC-FT 4,030 tt 26.37
<br />WTR YB 1971 TOTAL 2,031. 58 MEAN 5.57 MAX 217 M1N .52 CFSM
<br /> PEJl,K DISCHARGE (BASE, 1,200 CFS, REVISEO) tt fJeighted-mean rainfall. in inches. based on
<br /> five rain gages.
<br />Oto,lE TIME G.HT. DISCHARGE DATE TIME G.KT. DISCHARGE
<br />5 27 0430 5.82 2,360 8-14 1430 5.87 2,400
<br />7 28 0930 4.61 1,360 8-24 1530 4.96 1 .640
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<br />-15-
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