Page:United States Statutes at Large Volume 48 Part 2.djvu/378

 1650 RECTIFICATION O~' TIU~ RIO GRANDE-~lEXIl'O. FEB. 1, 1!):3:l. MinuleNo.l29ofln· the areas which will be cut from ternatlonal Boundary • • '11 Commission-Contd. one country wIth those wInch WI be cut from the other. (b) This trentment brings about the result that the right. -of- way to be acquired by ench nation will balance practicully in area. In general, the water-way pro- posed will consist of a normal chnnnel of similar size and cnpnc- ity to the present river bed, with levees set back with a total dis- tance of about five hundred ninety (590) feet (I80 meters) bctw.3en them. Levees will be wide enough on top to permit travel for inspection and repair. The nlig-nmen t has been so chosen us to Itvoid as far as possible all highly improved and cultivated areas, but at mnny plnces this wns imprncticable due to the mcnnderillgs of the river channel. (e) The above plan of shorten- ing the river by cut-ofTs is feasible in this case beeause Elephant Hutte Dam, in conjunction with the proposed Caballo Dam flnd re:1orvoir, will give practically complete control of the floods. Consequently the river thra the El Paso-Juarez Valley will take on more the nature of Il. huge central drain or cfinal than a rivcr. IV. - BASIS OF ESTIl\IATE. 1. - Cost oj Caballo R e.serl'oir (a) The cost of the CnbaUo Dam, including the purchnse of the lands to be submerged, has been estimated by the Bureau of Ueclamation at about one million two hundred fifty thousand dol- lars ($1,250.000) for the one hundred thousand (100,000) acre feet (123,350,000 cubic meters) capacity. (b) 'rhe volume of water pass- ing the Cnballo Damsite during the flood of September 1925 was in the neighborhood of twenty-five thousand (25,000) acre feet (30,- 837,000 cubic meters). Stomge in excess of this amount must be se corte de un 1)aI8, 8l\a igulll a Is que se corte de otTO. (b) El trnzo hecho de acuerdo con est.e principio, (irL lugar a que las zonas de derecho de via que debe Ildquirir cada nacioll sean pl'ticticllJUente igunles en exten- sion. En terminos gcnel'llles, el cauce artificial proycctado COIl- sistira de un cnU('e de estiaje de dirnensiones y capacidad seme- juntes a las del actullllecho menor dCl Hio y de un CRuce mayor li!liitado en ambos lados pOI' diques distantes como 180 metros (jaO pies) uno de otro. Estos diques tendr[m un ancho en corona bastallte para permitir el trafico para fines de inspecci6n y reparacion. EI trazo se ha hecho procurando, en 10 posible, no cruzar terrenos cultivados 0 con mejorus; pero en algullos lugllres esto ha sido impracticllble dcbido a las sinuosidades del RIO. (e) El proyecto de a('Ol'ta- micuto del Rio pOl' cortcs :utitl- dales es factible pOI'que el efeet.o eombiuado de las Presas d<'l Ele- fante y de Caballo, sertl. el de ('ou- trollll' casi por completo las cre- cientes, y eu conseeuencia el Rio ndquirira mus bien los canlcteres de 1m gruu canal central cn e[ V:lll~· de ,JlIIlrcz-El Paso. IV.- B.\SES PAl\'-\ EL PRE- SUPUESTO I. -Cosio de la Pres([ de Caballo. (a) El ('osto de la Preslt de Caballo, ineluyendo Ill. adquisiei6n de los terrenos que rcsult(\n iuundados, ha sido estimado por el "Bureau of Hednmntion" en cerca de un mill6n doscientos eineuenta mil d61nres pnrn un al1llHceuamiento de 12;L~{50,OO metros cubicos (100.000 acres piC's). (1)) El volumen de agua que paso pOl' el si tio de In. Presa de Caballo durante In erceicnte de S('pliembre de 1025 fue Illrededor de 30.837,000 met.ros cubicos (2f;.OOO acres pies). El vaso ddle t.elWl· (,Ilpaeidlld Illl1yor, pn.-