|
<br />(;0""-"
<br />'lkJpbt~ of the Re~i0.nal Director
<br />
<br />.
<br />
<br />lines. Tho offstream reservoir would 00 on Dry Croek Drain, in tho
<br />'wostern portion of the Geri:1.!; & li't.. 1,3.1~o.mic Irrigation Districto
<br />[0 new lands ~vould be irrig~'.tcd directly from the re::wrvoir...
<br />
<br />B""ziol Dccmsi te
<br />
<br />Locc, ti on
<br />
<br />5c The do.msito is located on Dry Creek, in Scotts Bluff CC\llltYJ
<br />l';ebrc,sku, in tho 'If~ sec. 27, T. ~2 H., ll. 58 W" sixth principecl
<br />merid::lU, It is no,"oh of the Ft. Lo.recmie CClnal r..nd iust east ef tJ-,o
<br />l'r:i'oming....1Jc1.Jrr~slc(l boundc.ryo- j]:{ ~I.irlino it is about 13 mi 185 south'.!}cst
<br />of Mitchell, 19 miles west of Scottcblcff, 65 milen ~outJ~vcst of
<br />l..llio.nee, 10-1/2 miles s01,th of Henry v:hich :s on the Chicago,
<br />BurlinGton & quincy Rai lroad, 40_1/2 miles so..::'th of L:ym:>n which is on
<br />t\:e Union racific Pailroad, ::\l1d 2 !:liles '..lest of Jo.nise, 0. beet dump
<br />o.nd spur on t:,e Union Pacific Ro.il,'oo.d,
<br />
<br />~oloe:Y
<br />
<br />.
<br />
<br />6, The foundo.tion of the do.rn rJill rest on soft sC!ndstenes end
<br />clo.ystones of the 1::-.nce formc.tion which dip f.lt 0. low cmgle to the north-
<br />east. kn overburdon of 41 feet VI::tS found" t t:,e left ::tbutment. TilO
<br />m::...tcrials varied from silty to sO.!1dy loam ',"lith finc-Erc.incd s~nds l8r.3-
<br />ing in beneo.th the 100.m cover in the deeper po.rts of thc valloy c,l'.'J'Ji'~!n.
<br />
<br />7. P,'essurc 'Gcsts in the drill..holes indicQ.te tile'"C would bc
<br />Ii ttlc lco..kaGC in t~.....c bedrock, ~Jut sc,~~dstonc c:.cposuro s in the UGP.lsi to
<br />[,reo. should bc covered with ::en il1lp8rvious bllUlket, It would be
<br />r.ecessary to cc,rl'Y the cutoff trench to the urme[Lthered rock of the
<br />L.'1ncc 'f'orrmtion to prevent ul1c;".)r-scepo..bo c.nd possible pipinG of s:md
<br />lGyers.
<br />
<br />BrQziol RosorvDir Site
<br />
<br />8. The reservoir site is located on the high plc'.ins "bout nine
<br />:niles south of the Horth Pl.c.tte River "ihich hc.s cut a dcep, "Iide
<br />vr.lby exposing ,.,lmost 1,000 fe<,t of ncC!rly horizontC!l T9r"tirry
<br />scdi:mc:ntso. Tho bedrock in t~lO rcsGrvoir areCl is composed of b1JQ
<br />formCltions of ne::lrly horizontc.l sediments. Tho laldcrlying L::mcc fer!:li_-
<br />tion is cor.l\oQscd of interbedded vf.lricgLted clc.ystones o.nd brown soft
<br />s2..nuGtoncs~ This form::\tio:n is confinod to the lo\'wr clcv~.tions in t:10
<br />resorvoir aroo., except f.lt the d::l!:Jsite lihcre tho stream he.s cut into '"
<br />bt:ried hill of l;;.noo sedblents. The sc,ndstone members '11":/ be m\tcr
<br />be: o.ring.
<br />
<br />'.
<br />
<br />9. r:\C reservoir ::troC! is cov~rod .Iith silty o.nd sf.\ndy 10f.l.tns of
<br />"entle slopes o.nd is ",ostly irriGated, Losses from scepC!ge Hoald be
<br />lmimportf.l.nt. The rl,servoir weuld inundc.tc "bout 8GO f.l.crcs at the
<br />n.Jrmo.l welter surfucQ elcvt~tion 1159...5, It ~IO'U}0 l,"!y,,: .:',. l0ngth of
<br />
<br />2
<br />
|