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<br />j';ONTHLY PROG-RESS REPORT
<br />S.AJi'LUIS V_'l.LLEY PROJECT, COLORADO
<br />?EG-ION V
<br />Mon th 0 f F6'bl'uary '.343
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<br />'].'>e S~m VJ.is Valle;;" Iroject \.'as autholi~ed un!',el' Section 1 of t'le
<br />R I . . A" ^.. '1 ~ ^ ." ~, . d' ." . b' . .
<br />_ec tJilE<tlOn Cl.o aT l.J>-:~ 1-,-,6 J]J.n ,"lEg or .Il8,s,eJ ~l1.ty ',lITes ap::iro'Ved c~.'" the
<br />SeCrE:t6r~r of t:le Interior on April lQ, lShCJt 2nd tra.:-l.Eil'litted. to the
<br />COnl;I'€SS on t:he same da.te. On cT1J.1'le If, 1940, the COll;;ress first 8,ppro-
<br />. " t d f" ., ,,-". f th ' t" t' .
<br />prlP, e Ullv.S ..Lor ur..l. el' J.uves 19a lone, ez:ploTE-tory ~.l.0.. "pre::9ar2tor~l
<br />v:ork, and comr1encemc.'nt of c('mstrnction ........ _.. .11 (Ac.t of June IE, 1?40,
<br />Ch. 395, 54 3tat,. 406.) .
<br />
<br />I. Closed Besin Division (Invf'stigp.tior:.s and Surveys 30% Complete)
<br />
<br />i. The eOmmffi'lCem~nt of construction of the Closed BBsin Dr~ir. is
<br />contincen t on (a) cOllolusi ve find,i'cCe; of justi ficetion t'rerefor on the
<br />bp_si ~ e>f cost and. th,e qUE'Jlti ty and qwIi ty 0f. 'V,T9ter tel "be seCUl'e.:3., 3nd
<br />(b) :nskine of c-JlequE..."te arrange:nsnts for I!l8inter:arce 0::.... t~e d.roi~ (Act of
<br />T ,,, lq~.O Ch 30" '''li St t' lia')
<br />"..-lLYJ.e .Ll..', ,~i, '. --,_:, /). 8. <.0..
<br />
<br />ii. The contempleted work~ would cons ict 0: en open ,train some 43
<br />miles in length exter.:din[' froill SB.f:ue.che Creek to t~e Rio Grp.ude, the Ulain
<br />purpose "of the dre.i:u. "being to. -2.UGment the flow of t'1-:.e Rio Gr2ude ';y rnPFnS
<br />of iire_inage return ,from t~e Closec. .B2tsin, 2":"'1C~ 11ence ~)er!:li t ell equal e::r;'-.:n t
<br />of Rio Gr",nde ,,'ater to be used in the San Llis Valley.
<br />
<br />i ii.. Begi.nning: about, 1915, varlous indi vidu,e.ls and a~er_cies have
<br />end-eevorect to d.etermine ii-he f~asi bill ty of such E'. (I.rail:.. AI:!. such studies
<br />have "Jeen inconclusive &->}(1_ :;.t ,>.ride vari:=l:::J,ce. During Octol)er l';l5, rep-
<br />resent"ti ves 0 f the Bure8'u of Reole.'!:,e tion, t'ce Geolor;icpl Survey, eno the
<br />ColoT'E,c1.o ',letel"Cons(:l"vatIol1 Board. met to evolve a cooperative progrp_'ll of
<br />inve~tigations to ?rove or disprove the feesibility of a drain. The pro-
<br />gI'!'JU of ir1iresti?~9.tions thus evolved a,...._c. the commitments of t~i.e v<?"rious
<br />participating agencies for carrying out the 2rogram were outlineQ i~ a
<br />joint memoranclum dated October 10, 1945.
<br />
<br />iv.. The U. S.. Geologicp<l Survey he~s tBken over t~:.e '{Jont.lt':,r reading of the
<br />\"8.ter elevations at ap}lTOxims.t ely 175 sepn.r?te loc8.ti::a1s in the .1 sumptl p_nel
<br />the are2 to t~1e west on a reiml1urs<?hl e basi 3..
<br />
<br />v. ]'1;,/ linesi'cr alternstf' 1n:ins ,,"'ere run, .fllilT"'linc e" pwap lift to
<br />cut the long flat grade to 'l'rhc'rera Creek.
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<br />vi. A report in \>J:d..cl: t':1e Jrou:.Y).d" 11b.ter Division, Geological SurveJ,".,
<br />~,ill cooper8.'Ge, is to be prepereo_ V.'ler, fiel(l s.tud.ies &"1Q surve,rs are
<br />completed. Beep,lIFe of the reduction of personnel ill tJ'B 9ro}?'~~ office,
<br />this re~')ort cOJ..ld not be subillitted to t,"-..~ Reg:i:')nE~l Directort as scheduledt
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