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<br /> L!nrl.;,,.~ ,: ::irn.ls upstream 60' -80' ud curios in uidtll from ''0' to -!0'. 'f lirru
<br /> I~. :,L :1 r.'3 •~1 R:ll`i slll3ttl)11 nl)5tfc' 3111 111 Lllb I,UUI ul l: al of Il.r al,u llL ,:~ lei[
<br /> to :1 SIIVCI' \el'l lCal ltllllstOrlc \' : a11. 11 of llle IrkrcS ally 'i t'~elatiuli In Lllc :,I C;,
<br /> vi inundnuuu are dead.
<br /> II .;as e~`~id~~nt that the ar~:t 1 cunt:u~t batueen the active silde and
<br /> n3tit~~ re,~,etatiun rusultud in a sula 1 outlet ditch. Thies dit~~ll runtainrd Duth
<br /> lice and dr:nd ce~etation, lou se roc ks and boulders, bu[ there r.as e~iu ence
<br /> Lltat t.xter had fluted out of [he i lwidutiun GI'eh U.'llell Lhe level rune Ilibll
<br /> blluUgll ifUlll I'a 1115 LU 1'IfIS.
<br />_ Au esatnina[ion of the dowlrsLr :11[1 aria did nor iudieute any eticencr uT
<br />s~apa;;e of the punded water through the blockade material The slidr has
<br />effecnvely blocked [he natural str am ul a t"er)' penuanunL faslliur~ n:~ulnng
<br />in a significant pr_rrnanent pool of'~ater. 1t is the author's cpiniun, huwe•`~er
<br />.irtt du.' w thu nature of thu composition .,I' the bucl`a~e marorla (r>;uom~ ;
<br />large well pacl.'ed boulders) and th length of the bloll:age, that there v:ould
<br />Ilkrl; not uu r, "i`.,ilurc" i,r "daul br :, 4:" ;uid flocdiu~ do:cnsn r:,ln In tl ,: c•. e;;t
<br />Jt ti lal'ge SCUI'lu.
<br />'ll,d :u~ea U115L1'L'Clrll is also acting 3s a rattling ua:,ill C~n~ ailt lr~m th`:
<br />quarry u;)eration end this siltation .till li6ely caltinue to encroach ilito the
<br />purld arr:3 I'cdllCllld its size. The rate and ruliability of this :;llt_ltwn Is
<br />unpredictable and shouldn't be rel ed upon u) solve the water iulpoundrnellt
<br />~ruLlem, alihuugh over a period u' limo this uceutuall;. .eill lil`ul> incur.
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<br />
<br />
<br />The stability of the slope is~difficult to predict, however there was
<br />virtually no surface cracking obse ved near the top of the slope, so littla ur
<br />71o mo~,~awent has liliely' occurred ecently.
<br />.~ schematic sketch illustrati
<br />at the and of the discussion -
<br />tupu~ra},iiic luapping.
<br />- ~ ~ -„~r
<br />y - - -
<br />The solution(s) to this slope s
<br />Cus[le Concrete, Llr. Heitller, and
<br />number one priority is to reduce a
<br />abot a the hluckaL~,c. A secondar
<br />dlr. ~. undc.l bl{)alalrl`
<br />the general field observations is included
<br />is a cope of a hurtiuu Gf [he r~frren~ed
<br />:ability problem have been discussed with
<br />Llle Owl, staff. 1L Is app3ruhL l„3C Chu
<br />nd%or eliminate the impoundment of water
<br />~ consideration is the mitiL:uiu I of the
<br />..,Li. .:..; ;, .,,tl.;l: ...,.., ~~ ,..... .. ... .
<br />~i I,~. .:Ilnu•,.,tluil ~7~ lliC .: :,ICI' IJ~~j~,,Jn,l uiclll r;u~ Ilhdl~ b~' J,.~n~• lu ..IIU l,~r ..
<br />combination) of the 1'ollowin~ wa s.
<br />
<br />I'lll lira impoundment a
<br />.cith ac3iluble or imported wut:rial.
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