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<br />
<br />2~03 Data 1'or stabilit ,ana se:;>. - The proposed borrow areas 1'or
<br />the levees 0 the authorized rinidadFloodw~ (see paragraph 2-02 01'
<br />the ,project report) are located approximately 1.5 miles downstream from
<br />the proposed dam site. A comparison 01' the test results on the embank-
<br />ment material 1'or the Pinon Canon Dam and the test results on the levee
<br />material 1'or the Trinidad Floodway, with respect to gradation and Atter-
<br />berg limits, shows that the materials have similar properties and
<br />characteristics, In view 01' the similar test, results obtained with
<br />respect to gradation and Atterberg'J.imits, the test values 01' the levee
<br />material 1'or the i'loodWay, which show' cohesion to vary between ,0.25 to
<br />0.45 tdns per square 1'06,t and'the:iil.riglei'f, internal 1'riction to varY be'bieen
<br />180 al'1d<:3:).,~, :,1fel;~,PP':1ll~i~d,1te~ a~licabilre~o the 1'oundaticlns. and eml:lla~-
<br />ment ml(l:wr:\.al. i:.c?r the d,bi!!\ 'rhe:f;illlJ;ot-!iilg -talqullj.1;;l.G>.11:0o.n1;,,:I-,l;l,~ a fi.1lJiIllI$'Y
<br />01' 1;he' .pby;f:li,Cli~,~x,:()pe:r;\+es.litl~ ;assUrrrp'tLob.s.:use,r!f!Qx;:b'qt-h':,;MdIl;1\,:1;O'ii,:~d '"
<br />emban~el.l'!i:ljlf.!-t~r+E4;M~l?:e;:st~1.ii1ity~lyse,s Q~thejd~~:m,P'.Eip~, ~ " .":,:',' ,;'
<br />
<br />- G(:A~~ie otirit~~n~'~~c~io~;""",:;:j',r: ",::,:'::'::~;"l) ., ";;'i:"~",'"
<br />degrees I , "'20'''''''' :," ,::', Ll,)' '
<br />Cohesion, tons per ,sq. ft. 0.25 ~), ;'::,'
<br />Unit weight, Ibs.,'per cu. ft..'
<br />.<?ptiW)llllmoj'.st).1:t'e
<br />, , sl,ll;>merged ' ,
<br />".Ba~urated ' '
<br />
<br />. )'.,
<br />
<br />, 138
<br />,,79,~
<br />,; ig:~~::, c,
<br />
<br />';','."
<br />
<br />"
<br />" :;;.',,
<br />2-04. Ana1;Y'ses 01' embankment ~tability ~ - 'J,'J~ ~l:i.clirig ci:i-,Jleirieth~d
<br />.. ." ,', " . .." -,-', - .."1, .,.... '
<br />01' ana.;Lys~\3)l~S b~en agp'1ie~'to both,~h~u~S~r~~~o. downstreams~'Opes:
<br />01' tl1eembariJs:inllnt to detetlllJ.ne the' most::CrJ.t:Lcal cJ.rcle and the 1'actor's1'
<br />sai'ety,aga1nst s).id1ng.""ThiS method '01" analysis .isdellc'I'ibed:iil :'. H;
<br />Volume'+I:i:, of apublicatiol'i byJ\lIlllin, Hin<lsandqCreager,eiltitlecJ., .'
<br />Enginetlring,~ Dap1s~Cr:i:tical circles and t,heir ;factors of'. sa1'ety are
<br />shOwn,pn .'P,1,<t:tE1Jl~. Tlie con~'tion choii/enior the stability /l,nalysi,s . of'
<br />the. .).lPI3;t.;I;e:~ ~lope' or the e,ll\bankme'tltiWas' '.a,. quick. dr awdown ,Q( t)1e)"latef
<br />sur1'ace" il). ,,'\lqe. 'I!eile:r.voir" ,;f.'rbmthe Eile'Vation :Gf' the, sp.illway: q;r;:est ....... .
<br />(6211,Q) to t.'tl.!i,base'ci;Ct'Membaiilimlent.."Th&'cr,:i,:~:i,cal circle::eo:i' this .
<br />condition has ~a factot 01' "ii~ety'of' ,][a9whicli :i:{>"cims:Lderecf a:dequat~;
<br />In the determination 01' the stability: 'analysis ,qfi:,th~downstr~am sl6p~u
<br />01' the. em~nlane\l:t" t)11l ,f>oil ,!as considered at. optimum moistUre contenH
<br />Be<:ause the. prop6secJ.,:~'~):ian!ai1erit;lnat"SI1iLa;L '~s: :ea/l:lils,ii'ie,d ,"'":;;, "preo,QJ1lillantly
<br />&ahOyo;Lay.which 1rio'i.itd'.'~ave a low' CQeij:i~lent.'1;j:l;;pei>in~iib:i:lj.ty~':and
<br />beoa'USe.l?i- tiie,sro:x:ti~~~' ~hatwat~r1-l6~~ ])e store4:~n,\~Ii.Kt~.~~fiv~J:r:;
<br />the zon<1',,:Q1' s8;t;tJr,a~?-on;,):1a:~ aS~,~ed' ~obe' :Lnonly '~l?;~, !lp.~t!:((lffi!!,l~f.~:I::()~:,o1'
<br />the:~b~nt. ,.the .()i;'~t,::;cal' circlEi\for the . <l9wns1ire.arn. pprY;1.<1h?r,~he,
<br />daJ\l atop'j:.:Lmum, lllQl<stwe eontentM:s III ,1'actor of,',I;l,a1'Plty,o:t ,:;1,.$0" , . ....."
<br />::,'~:' :,.:; ".; i.... '.<..'j,', :,.' '--,""" ,'..):: ~!;.:'<-' : :'<!. .' "'. ,.,; J. ,; :' ,-I.;'!'1,n;, ',' ','", , ..:.,',,'~ ,~- ' ~':,~' :,.!:. :'~:1"';;~~,:,,:, I,,,' ~:i..-, ;~. '::.>: :.:' :J' ':' ,:'r
<br />, . ~~9~"i,Qonc~~~Qtls~ :')laSe?i6lV:\th~;re~uJ;ts, q;f'~lie "a1?ov~,:}~YM~i-'
<br />gat:Lonand analyses,' the 1'o1lbW:Lni?; 06nlll:\llil'l.ONl,:'llI'!,!,;:;'.f)a~pe,9(l,t::"""':1" ': ,',
<br />
<br />a. The foundation soils are good. No unusual conditions
<br />exist at the site.
<br />
<br />I'''' .
<br />,,'. x..r ~ ~: .~, ;:;. 'i :,
<br />
<br />-2-
<br />
<br />Appendix II
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