WSP00494

• File Number: 8278.400
• Description: Title I - Mexican Treaty
• Basin: Colorado Mainstem
• Date: 1/1/1976
• Author: IBWC, US and Mexico
• Title: Flow of the Colorado River and Other Western Boundary Streams and Related Data
• Water Supply Pro - Doc Type: Publication

1b W[STER~J DOUIJDARY v:"HR BULLETlr: 19;6 It.TE~N"TlO~,AL B(Jut<['\A~'r N,D w. f[R CO,W.IIW(,r,

COLORADO RIVER AT NORTHERLY INTERNATIONAL BOUNDARY - DISCHARGES

DffiCRLPrIO!l: \/ater_6t.ol!J! recorder on t.h~ l~ft (Arl;:;onn) bnnlt and cab1"vay at. t.he .,oint. llhe..... t.he northerlj
inteJ'TlBllollfll lhnd bounJe..rj (CB.liforn.1B-Baja California) l1ltenect.s t.he Culonldo River, about 6.4 .lII.11~5
(lO.) kill) dOllrultream froOl Colorndo R!v~. bd(Jol YWIn Me..ln Call1ll WIl6t.e\lBY, 5.l11.11eE (8.0 km) lIeBt. ,~f Yuma,
A.rl:t'''IB, 1.1 .lII.11ea (1.8 lull) u~.treWII froOl r-t>~~109 Dlver,lon Structure, aj\J abo"t one mile (1.0 km) dol/l19lre8.!ll
froll Ro~J<wood GIl.t~. z"ro,;,f the l!Il.ll"' 1~ at m~an Et'Il. level, U. S. C. ... G.~. datUlil. St.ation 1s opel"ht.ed by
the lIn1teJ :.lht.~S ~ectlon of the CO!lIlIl1~a1"n.
Rll:ffiffi: Ba~ed On 26) current ~eter .w.aaure_nts duri "8 lhe Y~hr, 221 by lh~ !.blUed S'tlltea Sect1on, 52 bj the
""'xl.clln Sectlon of the COlImI.ia610n, 10 bj tht: u. S. Geolog1c/ll Survey. and h contin'mu~ Hcor;!. of ge..l!i"
heighta. Di~C"",","~ an! cOlllp.lled On the ba~i, of a "ater.at.oll" record~r 1,680 fe..t. (512 01) up~tre8.!ll from th~
nort.heTlj 1nternaUoll/l.l bOell1<1e..J;' IIhen! lhe relll'>lna of JUl old IIdr a~rve "6 II pe.rt.lel cont.rol1ing ,ection. A
cont1nuQels g><l>" height re~ord 16 Ilvnil,,,,le November 15, 1943 through 1'}16, ds..11y di~cha.ge record.~ ava11.bl~
Jltll'1"-D'l,1950t.hrough1976.
REKVUG: Re6erv01ra on the Colora.d.:l River, In-:lud.iaa We ~"d above )joov~r D....., IIhere 6t.oml!i" begbn in 19)5,
reservolr6 On the Gila River, aa1l11!\.nY irrigation d.iverslorul JUld return flOll6 regulat.e the river flU\/ at this
station ~xcept for lnf.....quent flood fl0l/5. [lurin,g 1976, tt,~ nOlol "t lhh ;o1nt, "nd the emergency d~_
l1verlecl tor TljuonB., BaJa Cal.lforn1a sheNn on pIlge 8, Tep;:-,,~ented lhe tutd WlJJelnt of the Colorndo River
IIElter vhlch oro~sed the northerly lnteJ'TlBtiona.l boundary.
EXTRE:/oES: Priort.oJWIlJB:r:;19)5: ItIx1.alu.ol lnstanlar:u::ou6 d.1EchRrge est.illlhted about 250,()()() ae(ond..feet,
(1,030 m)/Ee.:). J&TIU&!Y 22, 1916; m1n1..owD discharge, no fl'lW Severe 1 days during AUgtl8l Bnd Septemb~r 19)4,
BveT'hE;e ll!llIuol flo" 1),44),OJO Il~re_f~et 06,581,806,000 ",)); lII8.X1= lln.lIunl flov 25,~80,OOO acre_feet
().1,429,)25,000 01)), 1907; m1nlmUlll B..I\Jlual nCN l,17~,000 'I.cre-feet (l,4~8,1l7 ,000 .,.3), 19)4. Since JllJlu&J"Y
10)5: Joku1= lIIeM daily dhcharge, Ill"n,t )),000 se~ond-f~~t (9)4 mJ/6ecL r~brullry 7, 19~2; lRlrl..111Ul1l d.19_
charge, <XJ flowdurl."8A~1l19)5.

Mean Daily Di.charae in Second-Feet 1976 - Annual and Period Summary

D" Jill. F.b. ~reh April M., JUlie Jut~ ""ul. Sept. Oct. N~, DK
, 1,920 1,410 2,190 ),500 2,2)u 1,5,:>0 1,910 2,270 1,450 1,050 9)9 1,t.80
, 1,710 1,450 2,500 ),060 2,090 1,540 1,940 2,220 1,450 99' 915 1,5)0
. 1,)'>0 1,460 2,2~0 ),640 2,010 1,,:>)0 '.000 2,240 l,~60 96, 945 1,510
. 1,1130 1,':>50 2,2OJ ),1050 1,940 1,510 2,000 2.2)0 1,)10 191 904 1,500
. 1,4)0 1,560 2,220 ),81Q 1 ,'}60 1,540 2,010 2,2)0 1,)70 '9' 9" 1,410
. 1,750 l,5~0 2,:::40 ),860 1,960 1,550 2.0)0 2,220 1,)10 32, 955 1,720
, 1,620 1,600 2,2:30 ),310 1.970 1,500 2,0)0 2,220 1,440 79') 94, 1,150
. 1,640 1,100 2,540 3,670 1,940 1,5)0 2,0)0 2,2)0 '.1lOJ '" 96' 1,910
, 1,600 l,71Q 2,620 3,850 1,140 1,560 2,050 2,220 1,520 '"' 9)5 2,090
" 1,6)ll l,93J 2.600 3,3a.J 1,680 1,540 2,11)) 2.240 '.600 63, 9~5 2,110
H l,~60 2,560 2,600 ),860 1,570 1,550 2,120 2,2)0 ~, 190 1,020 94, 2,1~0
.. l,46.~ 1,7'J'J 2,600 ),110 1,570 1,540 2,250 2.180 ),130 1,020 955 2,270
" 1,280 1,910 2,700 ),710 1.490 1,550 2,250 2,180 1,850 985 93' 2,1110
" 1,200 1,920 2,310 4,620 1,410 1,640 2.250 2,190 1,220 1,0)0 975 2,t.80
" 1,120 1,'<20 '.W 1,050 1,)70 1,6)0 2,270 2,200 l,)')Q 1,040 1,170 '."'"
.. 960 1,180 2,910 6,420 1,)20 1,6)0 2,250 2,180 1,)20 1,110 1,000 2,480
" 9113 1,6)0 2,910 ~ ,240 1,)40 1,660 2,2tloJ 2,190 1,)30 1,110 :95 2,6)0
" 925 l,)'}O 2,940 ),150 1.)10 1,680 2,230 2,160 1,)00 1,060 1,040 2,620
" 985 1,)90 2,<;.40 ),210 1,)10 1,640 2,)60 '.080 1,))0 1,120 l,09Q 2,610
" 1,040 1,410 2,96'J ),040 1,)00 1,660 2,)70 2,030 l,)OQ 1,110 1,200 2,700
" 1,0}) 1,)130 ),010 ),0)0 1,360 1,660 2,)60 2,10::J 1,310 1,110 1,200 2,910
" 1,040 1,560 ),a:lO 2.9-;10 1,)10 1,610 2,)10 2,110 1,260 1,1)0 l,~2O 2,0<10
" 1,120 1,8)0 ),150 2,910 1,)70 1,640 2,290 2,2)0 1,)00 1,110 1,)10 2,8CO
.. 1,220 2,140 3,220 2,910 1,410 1,670 2,280 2,2)0 2,400 1,110 1,410 '.1lOJ
.. 1,220 2,410 ),220 2,900 l,~50 1,700 2,290 2,2)0 5,)50 1,090 1,620 2,30J
.. 1,2~0 2,700 ),19') 2,870 1,450 1,6)0 2,290 2,220 5,810 1,100 ,.600 2,180
" 1,210 ),Oll) 3,180 2,670 1,470 1,640 2,))0 2,100 7,Mo 1,100 1,720 2,000
.. 1,260 ),110 3,180 2,5)0 1,450 1,650 2,)70 2,1)0 2,840 1,110 1,1)0 2"glO
.. 1,210 3.080 ).220 2,5)0 1,460 1,650 2,)70 1,920 1,500 1,080 1,110 2,8/10
" 1,280 3,200 2,5)0 1,550 1,870 2,)10 1,7)0 1,210 1,010 l,10Q 2,e~0
.. 1,)40 ),l~O 1,540 2,)10 1,150 1,110 2,d50
". 55,020 ID8,710 48,310 66,820 )1,451 1),030
~O,t.le 87,)00 49,510 68,430 66,210 )5,]28
Cun,"t Y..t 1916 'Iriod 1935-1916
htr._ GlI' htrem,s.cOllcf-h,f ",,"r'I' To"l ""eN-hef
Monlt! het Hilh I-- .... s.c:olld-
Hilh L.. D., D., F,., ""crt-Fie' A~"le M..llnUIII MillilllulII
,~, 103.1~ 102.43 1 2,240 IH ." 1,310 80,565 401,01l 1,644,000 )1,900
Feb. 11)l,.61. 102.91 " ),2.20 18 1,270 l,SJl 109,131 3)1,120 1,)18,000 60,~00
,"" 105.07 10).78 )0 3,120 , 2,150 2,810 17),151 345,0U2 1,120,000 19,400
'J'" 108.74 104.00 " 1,2)0 28 2,~80 ),62~ 215,62) 27),927 82),850 ,
>0, 104.05 10:<.91 1 2,490 " 1,21'0 1,599 98,321 269,817 1,151,000 11,405
,~ 10).61 10).0) )0 1,<;160 30 1,)10 l,bl0 95,821 256,826 1,175,000 8,500
M, 104.02 10).46 122 2,410 3 1,810 2,201 135,729 25),838 76),300 24,400
,~, 10).90 102..!33 ., 2,)20 )0 1,640 :<,155 132,5)6 266,046 791,600 4),800
Sept. 112.56 1012,18 " 8,9)0 3' 1,100 2,201 1).1,)26 2)7,~4 1,009,OJO 5),851
"''', 103.15 102.)) )l l,)8Q , '" 1,015 62,)32 2)6,87) 1,186,000 42,956
!jov, 1011.96 10).84 3' 2,100 4 761 1,118 10,012 295,669 l,~22,iXlO 41,403
De~ . 104.70 102.98 '" 3.000 , 1,220 2,356 144,85) Jl5,~49 1,832,000 42,000
112.56 102.)) 8,9)0 '5' 1,998 1,449,516 ),561,062 10,596,':100 722,100
~early Meters CUbi<, ~ter8 I"'r Second 'Ihousand1l ot Cubic Meter~
3~.)1 1 3.1.19 T '53 I 21.) I 50.6 1.161,963 , 4 ,)92,5)~ r 13,071.110 I 8<}O,70)

, A.ndotherdays