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<br /> RIO GRAlIDE COMPACT COJQ(ISSIOB
<br /> RIO GRAHl)! BELO"/I' CAlJALLO Dd, Rn )SXlCO
<br />Location.- In the ntswt Sec. 30. T. 16 S., R. 4 Wo, N.M,P.M.. approd1lllltel;y 4200 teet below Cabula Dam in S1erra CowrtY.
<br /> B. Hex.J and about 20 miles south or Hot Sprll1g8, If. Vex" and approxll1t8.telyl02 milu northwest ot El Paso. Texa..
<br />Control." Bo permanent control exista in the 11l1lQl1diate vicinity of p,.. A loog raDge oo:atl"ol is looated 7000 ft. belo... the
<br />--pgi. This control h Perohll Diversion DIllD. In the immediate vioinity ot the gag6 the BojorqueK bridCe, 600 ft. below the
<br /> gage. and an old semi-permanent delta ot perohll. U'royo below the highway bridge act. as partial control. Yorlnr; sand
<br /> oause. disoharge-gage relationship to be at a shifting nature. Shltta.howenr. are moderateo. 58n.1t1'1'1ty is good.-
<br />Disoharp D18uurementa.- Disoharge measurements are _de from I. oable with II. sit-down oar equipped with reel. Koaaur1ng ..0-
<br /> 'tlan 11 goOd, bU'C was subjeot to oonsiderable scoJU' during spill trOll CabaHo DIUII April,Kay, J'W1e and July, 19h2 during
<br /> whioh period maximum mean daily discharge was 7650 sec.ft. Infrequently during au=mer months in pa.t yeara oheck mealure-
<br /> JIlIntll _re IlIade from a cable loaated about ,It. mile below Percha DaJIl. and approdllUlte1y 2 adles below the Caballo station.
<br /> Ta this ... added a measurement of the flo... of the Array CanalJ the aUJll repreaenting a chock: on the Cabal10 .tation. Aa a
<br /> result at api11 from Caballo Dam water began flowing around the west end or the Caballo cable atation A,ril 26, 1942,
<br /> current lDIlter measurements were made OIl. April 28 and April 29.1942 at the cable below Porche. Dam and on tho Arrey CalIal.
<br /> A sudden change in the river flow directioD washed out the c&ble belOlf" Peroha Dam. on May 1. 1942. A 118. oable aite _.
<br /> located and a measuring cable _s installed about 7 miles dawnstrell1ll from tho Caballo station. The tint Jrleuure.lllent at
<br /> th1a, the Derry cable station. was _de May 14, 1942. The section wu r~lar. approaoh at right angles. bott01ll sand, ,....
<br /> auIts very utisractory. lleuurements -.ere made at Derry until May 2:3.1 . The highest discharge tram Caballo during the
<br /> period _s theretore Melllured. Beginning May 24,1942 meuurements were again pouible at the CabalIo station. During thle
<br /> entire period ot high discharge from Caballo res&r'Voir an auxiliary gage ....s maintained at Perohe. Dam in order to cheok
<br /> against the Caballo gllge. The recards during this flood period _re considered exoellent U Il result ot the checn made.
<br /> consequently 1111 recorda during the period cODtinue to be rererred to the regular CabalIo sta'tion gage.
<br />Regulation.- The flow is regulated by storage in the Caballo DIlJIl 4200 ft. upstream from the station. A amaH arroyo enter,
<br /> ~ne rner trea the eut aide appruiutely 1500 ft.abon the gage. This arroyo oontributes JDOID8Dtary tlood pealc:l 100-300
<br /> o.t.a. onoe or twioe a year during the rainy lIeason. Ho_ver, thla TolUlll& or water is relatively _11 and it is alway,
<br /> possible to properly account tor it.
<br />Reoords avtilable.- Records began at station February 8. 1936 but prior to this date disoharge reoords are avai1.ble tor the
<br /> HiO Gl"IlZ1de a~ peroha Dam sinoe 1922. peroha DIlJIl is a diversion _ir looated about 2 miles belO11' Cabllllo Dam.
<br />Aoouraoy.- Exoellent;-
<br />D.y J~. 'Feb. liar. Apr. '.y J=e July Aug. Sept. Oat. Hov. Dec.
<br />1 293 m 967 2.5:~0 2,140 2.150 1,360 2,690 2.020 371 29.1 ,.,
<br />2 49.2 967 2,520 2.290 1,950 1,260 2,700 1,660 737 28.B .2
<br />3 48 113 1,030 2.710 2,290 1,660 1,660 2.700 1 ,BOO 71B 28.B 4.2
<br />4 43.2 112 1.060 2,680 2,290 1.870 1.780 2,690 1,760 560 28.6 4.2
<br />5 47.9 ZlO 1.040 2,590 2,080 1,950 1,780 2.730 1.740 480 26.6 3.9
<br />6 53.7 701 989 2.710 1,,,0 2,000 1.680 2,920 1.710 360 28.B 3.9
<br />7 58.4 651 961 2,7+0 1,110 1,990 1.650 2.810 1,710 122 28.B 3.9
<br />8 59., 665 965 2,670 2,000 2.020 1.620 2,"'0 1.660 125 16.2 4.2
<br />9 59. 483 982 2,580 2.,00 2,1,0 1.800 2,710 1,470 126 3.5 4,5
<br />10 55.7 '33 1.0'0 2.4,0 2.'00 2.160 2.200 2.610 1.470 127 2.5 3.2
<br />11 55.6 96.4 1.070 2.430 2,290 2,140 2.~ 2.560 1.580 93.3 2.5 3.6
<br />12 65 89.2 1,070 2.340 2.210 2,250 2, 2,~ 1.590 9.7 2.5 3.9
<br />13 67.3 231 1,210 2,260 1.970 2.250 2,280 2, 1.560 l.3 2.5 l.9
<br />14 67.2 Bl6 1.360 2,200 1,970 2.230 2.610 2.650 l,~O l.l 2.5 3.9
<br />15 70.7 Bl6 1,380 2.210 1,970 2,230 2.430 2.620 1. 70 280 524 309
<br />,6 7l 834 1.400 2.~ 1,960 2,200 2,:330 2.570 1.380 m 1.090 3.9
<br />17 74 82B 1.510 2,l 1,940 2.0,0 2,180 2'l10 1.,60 m 1,070 4.5
<br />18 71.5 B30 1.610 2.400 1.9,0 2.030 2.150 2, 70 1.,20 910 1.010 4.B
<br />19 69.2 B24 1,680 2.400 2,010 2.200 2.110 2.,90 1,,20 721 B68 5.1
<br />20 73.2 B17 1.880 2.340 2,150 2.250 2.020 2,l40 1,,20 574 591 5.1
<br />21 73.4 816 1,870 2,210 2,050 2,;;;;0 1,930 2.380 l,Z/D 478 187 5.4
<br />22 73.4 785 1.880 2.0,0 1,960 2, 0 1.9,0 2,530 1.040 267 157 5.1
<br />23 76.7 780 1.920 1.990 1,960 2,290 1.9,0 2,420 517 114 157 l.9
<br />24 76.7 785 1,960 1.990 1,960 2.400 2.060 2,290 118 l1l ll8 III
<br />25 77.9 7'JD 2.0l0 1,980 1,960 2.730 2,180 2,260 110 113 12.2 620
<br />26 90.8 838 2,1,0 2.000 1.900 2,820 2.170 2.170 109 76.1 5.4 r:
<br />27 93.8 923 2.310 2,120 1,670 2.670 2,:z0 2.130 105 28.4 5.1
<br />28 95.4 959 2,,20 2,170 1,860 2,650 2. 0 2.180 ll7 Zl.8 5.1 408
<br />~ 1O~ 2,,20 2.080 2,0,0 2.l,6o 2,160 2,~ ,88 ~.1 ~., ~
<br />'h ~:;;r 2.070 2.090 1.600 2.~ 2, 2DO ,4 .1
<br />11 2 80 2090 2, 2,110 29.1 9.9
<br /> l!Ol1th Bonita Ditoh Sacond- JlaxlmUlll Yinim\.Bll Run-off in
<br /> Requirements foot-daY8 ..~ acre-feet
<br />January.. .. .. ... ... ... . ... . ... ... .. . .. .... .. . . . . . . .. .. . 2.444.B 29l 4l.2 76.9 ~:~
<br />February.............................................. . 16.252.6 959 89.2 580 32. 0
<br />llarch.......................................... ~?t....... 47,~' 2,580 961 1.547 95,110
<br />April.... ... ..... .... .... ... ... ..... ... ... ... . .1.95... .. 69, 0 2.710 1.9BO 2.331 138.720
<br />lIay............................................???... 62,260 2.300 1,110 2,008 12).490
<br />June.......................................... .?~?... 66.220 2.820 1.600 2.2rT1 lll.34o
<br />July.. ......... ........ ....... ................. .~{lS..... 6l;170 2.640 1.280 2.0,8 125,300
<br />August... .... ... .. ..................... .. ..... . ,~S..... 77.380 2.920 2.130 2,496 15l.48o
<br />September...................................... J.J.}..... l5,504 2.020 '05 1.18, 70,L20
<br />October... .................. ....... ....... .... ..lti..... 9.642.5 999 3.3 ll1 19.130
<br />November........................................ n..... 6,066.1 1.090 2.5 202 12,0;0
<br />December.. ..... ............... ........... ... ....... .... 2,930.2 620 3.2 94.5 5,610
<br /> Year.. .. ... .. ... .. .. ... ... .. ... . . .. J...5?P. .. .. 459.761.2 2,920 2.5 1,260 911.920
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