237. Moffat water diversion project, 1935 (folder 2 of 2)

NEWS NOTES

4-H CLUBS SHOW LARGE INCREASE

IN ENROLLMENTS Farm Youths May Join

by June l, Closing Date This Year

FROM COLORA.OO 51'ATE COLLEGE: FORT COLLINS. COLORADO

I. G. KINGHORN. EDITOR ARTHUR ROBINSON. AsSOCIATE

To weeklies

For release THURSDAY May 16, 1935

Two-fifths more farm boys and girls and young men and women in the state were enrolled in 4-H clubs by May l for the study cf agriculture and home economics than had become club members at this time last year.

Total enrollment as of May 1 this year was 2,544. This is

766, or 43 percent more than the membership a year ago, says C.

w.

Ferguson, state club agent for the Colorado State College Extension Service.

Colorado's 4-H club membership goal for 1935 has been set at 8,000 young folk, compared to the final total of 6,009 last year.

4--H Club Activities Described

Increased interest and enrollment this year is at least partially due to the larger number of county extension agents in the agricultural counties of the state. These aDents and county home

demonst:bation agents are in charge of their county 4-H club activities, which incl11de the growing and feeding of livestock, dairy cattle and poultry, the production of crops, vegetables and fruits and the study of foods and nutrition, clothing and house furnishingo

June l is announced by Ferguson as the c.tosing date for

1935 4-H club enrollments. All rural young men and women and boys and girls who are interested in joining a club this year are invited to

see or write their local county extension agent or home demonstration agent immediately.

Colt clubs which are being organized in Adams, Prowers, Larimer, Boulder, Weld and other counties, constitute a new proj~ct

for young men interested in naising colts. A new type of club for girls features the study and practice of entertaining friends at home.

--4533--FARMERS' DAY AT AVON WILL BE AUGUST 15 Results of Mountain Farming Tests to be Revealed

Avon, Colo., May

To weeklies

For release THURSDAY May 16, 1935

Thursday, Aug. 15 will be the date of the annual Farmers' Day at the Avon high-altitude farm of the Colo-rado State College Experiment Station.

Hundreds of farmers and stockmen from all sections of the state are expected to visit the Avon sub-station farm and see for

themselves the results of experiments with many different high-altitude vegetables, small fruits and field crop~, as well as livestock.

New and modern methods of mountain farming that have proved profitable will be seen and discussed during the morning tour of the farm by the interested visitors.

Visitor~ To Enjoy Beef Barbecue

A free beef barbecue will be enjoyed by everyone during the noon hour, after which a general discussion of high-altitude farming problems will be held.

Farmers and stockmen throughout the state are cordially invited to bring their families and spend the day at the Avon farm. A special program for women is planned. This invitation is issued by Dr. E. P. Sandsten, director of the agricultural college experiment

station, and dean of agriculture, and C. H. Metzger, acting head of the horticultural department of the college.

Latest information available concerning the results of tests with different fruits, vegetables and crmps will be supplied by

repre-sentatives of the experiment station. Tests now are under way on potatoes, peas, lettuce, cauliflower, cabbage, small fruits, barley, oats, alfalfa, pyrethrum, sugar beet seed and livestock.

The complete program for the day will be announced later.

--4~254--G08D SEEDBED REQUIRES LESS

ALFALFA SEED Costs Less to Plant

Crop on Good Seedbed

To weeklies

For release THURSDAY May 16, 1935

Fort Collins, Colo., Hay __ --- Only one-half as much alfalfa seed is required to plant an acre when the seedbed is carefully pre-pared and moisture conditions are excellent as when there is little moisture in a poor seedbed,

With Colorado registered alfalfa seed costing 25 to 30 cents a pound, it will cost about $3 less per acre to plant pure seed in a well prepared seedbed with p~enty of moisture than to plant in a poor

seedbed, and the chances of getting a good stand aPe much better, says Wayne Austin, assistant agronomist at Colorado State College. College

experiment station tests show that Colorado registered Grimm and Meeker Baltic alfalfa outyield other varieties as much as 1 ton per acre, in a short rotation.

Field peas or Colcess barley make an excellent nurse crop for alfalfa, he adds. The peas should be planted at a rate of about 60 to 70 pounds to the acre, About 50 pounds of Colcess barley may be planted per acre when used as a nurse crop.

I

Alfalfa Heeds Slllooth_,_firm Seedbed

If the seedbed is as well prepared for alfalfa as it usually is for sugar beets, and moisture conditions are favorable, 8 to 10 pounds of good alfalfa seed are enough to plant an acre.

Austin recommends planting the nurse crop first, about the middle of May, and then drilling the alfalfa crosswise immediately

afterward. If it is difficult to prepare a firm, smooth seedbed this spring, it may be better to delay planting alfalfa until after har-vesting a grain crop. Alfalfa then may be drilled in the stubble with good results, if moisture conditions are favorable.

C. A. Bartels of ~,ort Collins has obtained very good resul

te_

in planting Colcess or Trebi barley as a nurse crop for alfalfa, by stopping up every other drill hole. Fisher Brothers of Fort Collins have been well plGased with field peas as a nurse crop.

Duo to the prevalence of alfalfa wilt, which gradually kills many stands of alfalfa, the college agricultural experiment station

recommencLs that alfalfa be replanted about every ti1ird year to main-tain good yields of hay. It is also suggested that growers may find it more convenient and practical to plant for example, 20 acres of alfalfa every year rather than 60 or 80 acres at one time.

--4535--GROWERS SAVE WHEN POISONING

'HOPPERS EARLY To Begin Control Work

in Several State Areas Soon

To weeklies

For release THURSDAY May 16, 1935

Fort Collins, Colod, May __ --- Farmers can save one-half of the cost, time and energy required to poison grasshoppers by killing the pests while they are young and small instead of waiting until the insects are fully grown.

Successful poisoning of 1_{hoppers while they are ~oung also} is twice as effective and protects c.rops from any damage, says Sam C. McCampbell, extension entomologist at the Colorado State College of Agriculture and Mechanic Arts.

"Grasshoppers are easily killed by early poisoning along ditch banks, fence rows and waste places before they scatter from their hatching places," he adds.

11_{Although we will have infestations of} 1_{hoppers in many} counties, we do not expect such severe outbreaks as we had last year, due to the poisoning campaign conducted a year ago. Considerably less damage from the pests is expected in western Colorado than in 1934.11

Insects Now Hatching_ in Foothills

Grasshoppers have been hatching in the foothills of Larimer, Boulder, Douglas and possibly other counties. Indications are that

thoppers will hatch in sufficient numbers to require poisoning efforts by growers in these counties and in Jefferson, El Paso, Fremont, Las Animas, Weld and possibly Custer and Huerfano counties, as well as in

counties bordering these areas on the east.

Poisoning will start in some regions during the last 10 days of May, and will be fully under way by June 1.

Farmers and the

u. s.

Forest Service are reporting to local county extension agents any sect~ons in which grasshoppers are hatchinc so that an earlly and effective poisoning campaign can be conducted to protect crops from damage.

Farmers and county agents were effectively organized for 'hopper-control work last yea~, when 9,891 farmers in 40 counties scattered poisoned bran mash on 409,140 acres of land, thereby pro-tecting crops on 1,408,000 acres. It was estimated last fall that this protection was worth at least $1 an acre. Growers and county agents again this year will condmct well-organized action for control-ling the pests.

--4536--BOULDER COUNTY MORMON CRICKET

OUTBREA.K FOUGHT Pests Being Poisoned

to Protect Crops

To weeklies

For release THURSDAY May 16, 1935

Longmont, Colo., May __ --- Mormon crickets covering an area of at least 500 acres about 3 miles northwest of Hygiene, are being controlled by scattering poisoned bran mash where they are feeding.

These insects on land farmed by John H. Mahagan, caused some damage to crops last summer, but were not definitely recognized as Mormon crickets until this spring, when W. J. Wonders, Boulder county extension agent, sent a few of them to Sam C. McCampbell, extension entomologist at Colorado State College. This is the only known outbreak of Mormon crickets this far south and east of the Rockies.

For the most part, poisoned bran mash is being used to control the pests. Elmer Meadows, Larimer county extension agent, found that this poison was effective in controlling Mormon crickets along the foothills in Larimer county last year. Sodium arsenite dust was found more successful in killing crickets in Moffat county a few years ago because the crickets there were so numerous and migrated so much that they would march right over ~he bran mash.

McCampbell dusted an acre of range pasture near a field of grain last week in order to test the comparative effectiveness of the dust and the bran mash in controlling the Boulder county crickets.

r

•

errorandu. concerning h des! n and

construction of works nd other re -1 t d f turos. ·

By R. L. 11, .)r. Irrigation Engineer

Bureau of ricultural ,n ino ring,

U. :. De t. of .rjoulture.

To •

s.

roc,{ r, Consnltin m in er, enver ~unici · 1 ·: ter oard.

No n rticul r attenti n a ben 1 en to the d t ils ot th col ection s~ste on the estern lo~ other t'an to revie. the .en ral sche e

or

ditcbee, d s, tunnels, 'Pi clines dDd nosaible ~at r unnl.r. This articulc:J.r

fe~ture of the nrojeet i 1 portant in ro erly roportioning the capaoit of Ch' unels, t:Jnnels, i elines ~nd di-version ·.•or ts to s ... re full recovery of the ater su ~1 , · t le st in sufficient ~rrount to re c t e full

ec a.ei ty of the ... offat water tunn 1 and other oondui ts or the s -ste •

r vie of tb con tr ction d tails of the linin€! o the tunn 1 h s

o

en ade, princjpall f:rort th- st ndnoint of hrdraulic limit tions. ·here h been no rson£1 x . in· tion of thi · ork.

Th. rin i 1 fe t~r considered of t i nart or the div rsio roj ct as the rrin tion of the rob ble c· .rr:Ting oap· city · .. nd t e ax cted r-:f"orttl nee of th flo of at r through thi tunnel as ill be cor leted under

2

-ot disc r e ls -ot ssible o 0':1.lcul~ tion beoause of the

un-er eo '! 1 oi ent to be

com-e :pao1ty letel1 lin d and usin_. the ooetfioient, n

=

o.

014, the o

1 r

ro

n to ~ :bout 1 ?40 seoond-te. t. o us of th cast !.l f 1 ny. 1.1n-lined the co fficient of :rou ness ean only b ~roxin· te , .... nd or ... be

u se o esti . ti £or the oonrl1t1on o lin d ~nd ur.lt:ned sections. the value of' , n, hJ s been t ken s

o.

036 for t .a. .~rt of the tnnn 1. ioh is to b unlined. This f1:t~ 1 beli ve to b cons rvntive. On this ss·~~t!on 1t is found th t for ad of 600 eo nd-f ~t the

ater surf oe n t sh ft at t st l"'"Jrt 1 w111 :r~ao .. v r:.' near, i .. f not to the to or round surf; oe. lf t full lengt 0 th tunnel l:<IO lined, sutr c • for this is &, ;ould b ou 56 feet vertical-11 belo thf3 top of the S~ tt. In tl·it.; CV t eotur! dera.b 1

of t e ter can be .X cted.

1" th on 1 ion of t'h tunn 1 er wect alf i lind nc1 _the e at b lf unl ned, covP. nl 1 ~ible oon it ions

or

:f'lo rna r result /hen de-11v ring .. rox tely the 6 0 seoo d-fe~t at tb ast oorta.l.

~ere wil be o irresz 1 ri t1 s or i tert renee to t · flo through the lined s ction of the tunr l. mh~ flo line 111 b belo the hydraulic grad lent f'or the tull length of the tunnel but ~· t tl.lll e rooi ty. near the

a t rtal tb se 111 n eo on line. So. unc~rta nty wits s ri th reapeot to the otio of he water, at to just , :a.t is to be e·xpeot

full C' p oi t-y. . t the 'Oex of th t nnel n ron this noin to th outlet or e st !)Ort 1. h adhereno of t .c w. ter o the crown of th tun ~el t

likely to c use an 1nstable oon i ti on of flo • It 'Ould ! bru. t ch· ~ in t b dr .. lie n-radi n at h.

desirable to ex, but t this il!l n construeti lgg 1)t _{~.0 1 can b} of ... ered as a _'[')ract1 oal means o.f

a-cor· 11 1nr.r th.ls change. T dherence to the orown 111 lle car ied fol"Vl rd

until the ,ravi t .. ctio ov rb lances t llC or nr: -tive air prfl s

due to tb f'tlll fl ing section or the tunnel. At t'h noint of breaking the rarefied space ~reviou l oca . 1 d by 111 oau e intlo . o.f air fro the ea. t portal to b 1 CL this ne con ition of flo .• Beoause of

t lon distano t is tr arn ot air 111 a to trav 1, rel·ti ely

sn:a11 oross section of the air < .. c . for sucl'l tr vel, it i.s erpeot d that

th equ liza.tion o forces ill be slo ot adj ts .ent and li ely ill not b cott letel balanced.· fhe lnterrrittent aontaet ·nd breaking a ay of the

ater s~faae from t e or~ n ill pro uce a ronounced ir surge in and out Of tl. ast 'OOrt .. l o tbe ttmnel. Tbis irregul r ation :111 e:luee a pradu 1

inoreas · and d areas of the i aha.rgee This variation in. flo • t full e naci ty, JN:l.'!f ,ount to sever 1 second-f'eet. hiRh, inve:rt d "U" air duct

eonneotion to the railroad tunnel may be provide~ but it is doubtful if

t is ~di nt ul e ju tifiedo Such air oonneetio t '

tunn 1 ould av •ert1esl s arts reae i~ ell abov th hydrmJlio .r

dient and th n b joined aoross at the to i tl1 a. s, rt horizontal · ssaee-a. . J.: ese oro s-overs ma""'" be a source of danger. resultitlR' fro .. "o :v·

in t so~e oint lnnR th east half of tbe ter tunnel '"''UC t 1JOraril~ obstruct the :f'lo 1 and eause a si honio action of

into the railroad tunnel.

s ould ter o r

4

-tun 1 ill r 1 t o"' t axi di oh g of 60 econd-f eto Ins-oectio

o th oros oti ns of this rt o th tunnsl disolo considerable 1 re lar! es 1 th~ bound rie of the lls and tloor. The e ob truotion

ill result 1n turbulent !low and thus resist th velocity to rn rke.d

de e. o in re hi xi disch of 6 0 s oond-f t the invert

or

t is art

or

the ttnn 1 hould be o id d ·ith anent oonaret slab

con o iDg ith the ~roper thickness nd d1n:ens1ons as ill be r quir d tor

the future lining. iJ ch 1 rovement is de n;ed hie:hly de irable 1~ ·funds wi 11 per it, but as 111 be di soussed lat r, th1 s i roverr:ent .,...,,;y be for the present held 1n be anoeo To enhanae ·th o city of' flo it is reoorrmended t at 11 sh ular ~roj ot on of the unlined section be re oved.

~ic-nded "90rtion~ of t e tunnel, th t 1 r . ad for oos 1~ tr e s duri .

eonstruction, s ould be r duoed to a no 1 etion, either by t orary

roo11- alls la1 1rt t aereent mort r or concr t ~ lls of sui table .hic.n ss,

def1n1n h true tunn 1 eotine. If t -rmlin d ea.st-h l:f' o th tunnel

flo . con: l tel~ full, t axi di sobarg.e i 1 be bout 500 second-:te t

.e th r 1 no eoner te inv rt.

o ~cr te 5trueture t t rt 1

The stilli b· sin · our dr~ inp. 99-2 • . offer

sorn ifflculty in o ration. Und r o . 1 con ltion of flo the draulio Ju ill forrr. d 1n this basin; r, 1 ls exn cte t at t re ill

b er~ ecid ori ta . oci t.. al n. th loor"t nd th

u_ ~-rd lo t th nd of h ba in 11 c rrv this curr nt into th concrete-lined ection o the oanal d ~roduoe • is ett~c on b corrected

- 5 ...

vert 1c 1 11 t th do ... J.stre end of tbi ole obl

ebri in t 1- b in be iv.n oon~i a tion • • e sat r tion of the

s th unline 1 _{.otion of the tunnel 11 n e .~ore or less}

s~a111 h ·n th~ e fr n s ill be- carried out and e~sited in this

s illi b si If this de sited . teri 1 ecmrol tew ill s ff'ielent .. ount

thee ill b o~ dang r of the ump forming so emere do stre in th

Q' 1 eetion. a rh ps tta~ not consider s rious ~att ,r ot er

tl a to c us er-y rou b con itton of flo · throu; the 15-foot Parsh 11

mea urlng flmne "a thus result in th unsati factory o or tion of this

~e surin devie • The .atter

or

drainin~ th stilling basin fo cleanin or

r pair shoul be oonsidered; t"his f tur rnav be found difficult

of aocom li ·h nt b c us of the tono· ra h·· of the .round at thi pointo

1h 15-foot t rs 11 e suri flurne ill C'r 1200 seoond-f ·t lth

s:n Ha e of 6.,64 feet. T11e t r de'!')th at the ntrn.nee or u trea.m end

of he eonver i etion of the flute will b

.s

f et, 1ving a free boar

of bout 1.7 fe t. h tr nsit·on fro tho trap oidal canal cation to th

reetan 1· r s ation of the n:e· ri flurre shoul' be re 1 r ~ not h·:v an

bru t ri ht ~1 o f-set. The -inch eoncret r it ion- · 11 bet ·een the

Ring el s of the 1'1 :e. h n enforeine -bars · re in pl-ce, li· ill be found

r:· t e di tfioul t to nonr been· s of the de,th and t. itmess of the wall.

1 t nata 1an · t ould be ugaested to u~ , inst ad, ~-inch stec;;

p rtition .1 teas ~lanned for the 12-foot ~easur1n flume at the diversion or on Sout ould r Cre kQ To .r vent t urfl'e in the 3b or throat well

1 t 1 reoo end . to t-ao e use ot the su~Re~tions offere in Colo. x-pt. Sta..

6

-Diversion orks on South Bould r .re

hiu div€rsion cons! Jts of a. stra.i bt gravi·t;.r-t o norete d

_•

bout flood

5 fe 1 .it e 111 .. over t er st c b 0

h int ke t tb conduit in t th so

the d m. tt.rou

d ~ac nt to the ivar ion oh n 1 is vro os d

d , ct lo clev ~ion, cont o~l by r di

6x8- oot sluic _'Y

, o le of

nd-~ t en e ter s rf c. is ne r th ere t

of th d ~o xtend1 up- trerur.. so 3 t ,t !ro h f e o th truatur

is a c~ cr te oh nne 1 nol"n 1 to tbe ax.i of th d .nd in lin with th

luioe 1 o · nal i to c 8 f et 1 n, o h 11

e

fe t

high,north •l 6 ret

11 i s · er ti cal t r

lls erti<' lo

15%30 fe

1 oed on e o o t e outh

in rea t varti 1 rat1 bar "" t 6 inches ayart. The oond~i .o of .uter upstre

nrovide · ve ~ oderate velocit-, tbrougb t J gr- tinp:s into t . di erslon ob 1, n because of t is oond tion it s -x cte t, t li tl if

b carr1 d tl rou h into th int ' e oh ber4 1:h sluioin cl unn 1

in fro t of t gratin,.,.s ha.s c oi ty for consi er ble d m re t de th of t i5 de sit r dhe th

into th int oh ber. t in slulcegat in th d

unt of d dra

sit, ·

h o ned d all

ac~rrul tion lus~nd out. tr· s-nount in · ter · ~n a ded to the no al flo ot the or k ·ill c u t stre· n, to f o t ch de r • and

tre 1 rge au tit 1 , f and d

il ·aonse ~ ntl dislod~e nd c·r y

gravel. It can bo n oted t t duri ir t y r or tn, sluioi

ccuroulations of facilities ,111 b usf#d often ln s in on d.o :nstre n: th

7

-Th xcl ion of th a~iTr ll'!'. mount of ~ d fro:rr nt rin~ into the

di-version ohann 1 is beli ved

to

be very d sira le. ·l'he ~1· tivel i h loci-t1 es o! t~J ater through the tal 1pel1n s and line! tunne 1 ections en o rr in~ and 111 cau e scour an ero ion s · ~11 a accurnul· tion of thi

mtt r1al n t line, d fro int ttention has ben iv n to the

roble ot r duci~ to ~·inil!JU!!1 th- arcount of this Ttiaterial t ken in a.t t e

bead ~rks. To nro ide furt er ~roteotion ainst dr i . be vy sand or r vel

into t e a st , ther is s~ thre under sluie s (s e lans) ~ hioh

111 dra fro the c a ber 1 ediately do nstre tro the tr sh rae • These

be in oner tion more or less CX'J sta tl~ as n; ans of re 1 t1ng t e pro~ tliso r e to b .iv rted from thG creek. In t trai ht chann 1

1 ,ad in~ to th 12-foot. P rshall easurintr flm tber, is reco .. ended the

~lacing of a b ttery of 6 vortex-tubes a further . ns of catchin s.nd or

silt ovin~ alon~ th floor of this a ~ro ch ch nnelo nde~ norrr. 1 o rating

conditions it 1 o~eate t at tbere ill littl if y sand or he~

rr;.:...terlal nterin the onduit. or flood flo s ere th strearr is e vily oharged i th silt or so .ende matter the ater entering :ill carry this finer

~ terial over · nd into the y t _• ac use o: th rel ti ve fineness of t:h se articl s· it is not x ected tra.t thi~ condition will be h ful to t etal

sin ons or line tunnel section • The ater . ss1ng t rou h the nlined tunnel

s cti n ill nic· up d oar ., -r r ~a.rd C()n iderable :x ount of a-palls ·;ind sand

~s eroded teri 1. ~is ~tter, if accttTUlat in t .c ~iphons ~ v be r oved throu h .an-holes that ill b rovid d or thi ~xr~s • andtra to nrotect the siphons bet een tunnel·~2-3 and 4-5 hiVe een cc:lnsidered · nd i is reco. ended that turt er attention bn f?iven this r a.ture. The velocity of the va.t r through

- 8

-the unlin d tunn ls ill b about 6 feet per eaond, £~d all loose ~ateri 1 111 out ::.J. cl r~ "'·thin tent

or

l l i and

t" , -C ul t on of s .d fro th unline section cannot be tat r t thi tiro • 0 dSi - it bette pl n to observe t 1 ction a .. te a.

se'" t-""'n' s t.U'H • 1! found nne ssa otection can be de 1 tar t a n •

lin nt and C eity o

Car a.in oh es n ali 1""! nt ha e been pro sed , ro the n"tajor ·Iteration

is bet een the e t nortsl o tunnel 1 m the ·~st port 1

or

tunnel 2. It 1 s ro d in this n ali nt that ins d ot tunn 1 1 bei on t n , .n · nd outl tin t ro ~h 6-ina t .al pi. s rt d on a teel c

t. e ere nd. into · bad t:r-an ition, thence in , n o en b nol fl'Utt o ome

400 fent, :ll'ld finally through a.n 84-ineh teel Sl ho aero g the creek an into th est ort 1 of. t nnel 2; that tunn 1 1 be d i n on ~rve o

constant r diu , the east ortal ligned to 111-inc t r.l in on, s 0 t d an suit le oonoret rs, .nd extondin to t'h, est ort 1 o.P tunn 1 2 at dista,o of bout 760 f t. oa ··city of e orn:er 1 out s to be 500

s cond-:f'e t, .11 fo h 1 tter the c ci ~ 1 to be 1200 s cond-~- t, nd t e eat 1 .. ed oo t o t t .11 , en ~ roxi tel n u • In the trans-ition fr tunnel 1 into e steel iphon tt'e e will occur hydr lie ttmp

for to bout 00 s cond-faot. Th1s some vibr tion

and 1 s rbano :for ··· dist ... nce of bout 10 foet

s ation or h in • a~y rein~oreod concr te nchor i. GX cote to

nro-ide -ple eC"'vri ty to rA >i t t is eondi tion. he si on, len sun ted on

d-- 9

-roo tor roa.d~ y u t e oanon. It i s" € e t d ~t th[ ti.,e t t os~ibly

or thou ht oul iven to t connect! a tunn.ls 1 ~nd 2

by ll nat in the t o trearn cro ssin s d c ri;.· the lino alon. th . ount .in

1d · on boneh .foun at1 n 1 id to gr de.

be 11gnt'1Ent o tunnel 2 h s b !·n ~ nged ·~ li .htly to ean t o transition

t both -port ls. l i , ent of tunnel 4 h, ~ been sh1 fte· a out 75 feet

1 ter lly to nro ide tt.ore ·eo no 1C 1 const1"1 ct on o t si'Qhon ero s:~ at tJ~e ea t rt 1, s to i-mprove conditions of l i nrnGnt o ... t lo n1pe

-line r ao .. lng to t .e.st no tal ot tunnel 5.

no

detdoiled stu y hu.~ be on _1" n to th~.t n .. ~rt o · th lin. enst of tunnel 6, except ,~,or the tr"'ns:i:t on fro thE

·!at port 1 o tl is tu nel into the o an conc.-ete-lined can 1 .. ction.

vest rt 1 of tunn 1 1, t t i rsio. d on ,out. ou d r

Cr ek, to the ot nortul 0~ tunn 5, th con uit ~ill be clo?ed, tnus

e-vent in. inti-blo ebris ru hill-side t &. h fror~'· ente""in the conduit. Also,

~.Je o-oulari t of South o !dar anon, and the caG./ .;J.CCo ·. to it. ill

attraot touris s, a . pers and ionic rt14 _{s, tte cor~nl te eover.in 0 th}

un r reran s f this cond it -111 ncco · r;v .. s 11

;\,;:) t e elirrin~t1on of no5~l le n.

i~e t ;-.:a. 0 b easur

tr·ro rs f1 "· d i -4 rd1 1notr 0 ot 0 t ,. 0 _""

..

..

₁ ... ~ 111 ... 0 7.6 tl co .... v 1 io" t~ _{t ·c} • M ( ! 1 b Y' .. s 0 r.lr io

- 1

-; r. e o ont nu of hE! 1 0 flo

h b

,

00 cl d c . 1 ·r

di l ,.,. .7 _.a

'

·

(. _' 1 i l l le

to 0 o rr • t}me r in. s ~-::tah devi ind

con itel fi t tion on

_•

co t1-f .t. 0 ot 0 ,.:l I d t s! _• '!' tr in _{re "} 11 to te s 10 ent in t r 1 a ·o t of _ st

,.

!t 1 to be 01 out 1 t n 1 till in 1

• 1nv sti io in t to on ice nric t

1 ffioi t 0 t it b in

c 1o in conn et on t t is de r ion

s G _• I 1.., rth d t t th vortex-tube b in tal1 d

t ui . bl 1 e tion lon uot s rre·· . of tr in? 0 t

:.nd 111 is fro t e tur~l ros1on o th

ch n 1 or at 1 1 111 b. . r1 i b. 111- ide sh o

1n _•

r ion -or :1 to b rovid d 1 th r ilin •

1 0 0$ inf' '!r t e n~rth to h

abtlt-nt 0 d _• oc on t r 111

'\

'

11

-Utilization of the ':rr ns ounta.in ·· t r tt ly

It ls e:xtrer:el Ul1fortuna.te t t fu ds are not v ilable to d .liver this

new ater "'!llY dir-ectl·; into th oi t :rr. 1 • As 1 t 1 a und .. rstood, the

to te~inate tb& roj at at ~int in the dr&in ge ot Standley · ke : nd ,. nt 11~ deli v r t e water tt rouP.h Big ry Cre · k to t e qouth la.tte

n1v ~ near ort 1unton.

o d iled stud~ h· been ~de s to th best ~ t~od or ne n ot t

deli ry o thl s sun 1~ · ft r bei.nfl ' iv rted fro. outh ouldo:r Cree • It is

o ~ibl. to o this b1't ... tendin the open canal s otion fro . the no J?ro sed

ter~inus to the rain ~e of Mevden Creek or on to n~l ton Cra~k, bioh ould

'

then deliver th .. into Clear Cre K. his sam· thing could probably be

ac.,.or.r 11 sbed rehabilitati th .iver C al, · ioh ;ould ic up the floT1

· t ""t ndl~r .. ake . d d.eli'ver 1 t into Clear Cr elt bout t o ~iles upotre

f'ro the con.fl nae .,it t e lat e ·uve • It i.s bel· eved th&t by ,oving th

del"iv r.; o tbi s tr nsrcount in nl a far u tl. South latt Piv r s it

is oos_sib1e, the e of t is n su n y ~111 b at~riallv incre sed.

If thi a tunnel y· ter s deli ered into th lat t :rear For"' ~u ton. the

ef'"'1oieney of use b • tbe city in u sn ing its dor.:e tic ann lv would be lo • iver records di~olose t · t:t :·l"G ht~.ve b en ti ·as hen th st ge i. t riv r

has been too lo to ffeot e oA~n~e, nottbly. ·u st 1 · cto r 1924, nd

,.enterr:ber 1932• It 1s v ry likel.,. ~hat the nos ibilities of t-n exc~: . e f ) f

ate:.r between t!.:. i out of Dr; C a .. k non durin 19~4

v;· s extr rr C) ly 1 i 1 ted. (on-e re l dVJ.D t in d by deli erin~

t P tunnel sn nl into tn uouth n1 t .e ' 1 r t noin upstr am fro th

-

12-es voir. Purt r, b rro'fing thi :ce un ly u stre rr, a.dv mtu. os in ·xcl a es

vith arl ir l ion r1 ht _oul. be ss b l .

It is ttrg d hat c r ful exarr.in t1on b s to th 1'0 ·. !bilit'IT of d

-1 i ey of t tu .. ~n 1 ter into th · lat t iv er u st tro. th urli ton

o· ..

t1a.1, either Leyden o Ra.le on Cr k , or iv r Canal.

t i il. ne noeess r .. r to ennstruot small "'~ vttrsion d

~o ct1-rnplet

in 1 r

re d t n tiliz ·he •· i te D toh to o r1 t. e ter into th n} tte

· nno 1 ,_ys b("

11nrrton C"'nial, b

o ~n. ~nee t·

ll.;r re· liz·d:, " n n delivere t the head of t e

Bur-so ~ointr t ;e aba.nct 1:o xel ... anv. is g . tlv st:re then d.

. fiai no· o tbis n ..• ter su ply it TNl;J' b -ell to

con-sid r tl.c rr t :r o eurta1 ing so .r. of thf' onstruot .o costs lse .-:her , o.nd

nos ibl:v to s ori ice so ~mat t e . v.irrurn ea · oity ot 600 ocond-feet, in

o d .. r to rovidG GU:f'f'ici nt eana to ... ull. d velo th r!-:f te of deli very into_

tf'.., 1 t c iv r t the .~.rlin ton an 1. As cit d revio sl.r. it i.s po sibl

to e ~ nstructin~ th onerete vi i.n the bot. o of the

e at h.u.l.: of the .. ~:o:rfat ater tunn 1. It . , y b · ound that t is tunnel 11

err·

on

s cond-f et 1t o.u this -paved invert; o · ver. by · sUI!:ln the

oocftici ·nt ~ rou hnes~ to be 0. 35. th 1sch r e i p~~oxi tel 50

second-f

6

t ""hereas. 1f tle i.nvert is lined, t~@

s oond-f et. I s lth~ut u. tion th

anaci t.. is x cted o b t least

b t~ ,. lrn to _{rovido ~ith}

a -urano for ti1c 6')0 eoond-foot oa o1 tv as tr~.x1. ~ li it by 1 cin t

concr t , i!"'Vert in thr· .· t ' -lr of the iltsr tunn ,.1, :r t it :r> ~ rove t t

th1 s axi · c ~cit n }y bB r ~liz d ·ithout th1 1 provernent t a

consider-:ble aving in costs. Anr sa.vin s rna e hich tt;;1y :ro ot th ult p t inore s

- 1

z rd o OW'! t

.d co.n it on ooi d . t l" u ·s ~ one of d · con ern,

not on1, fro the of do stio n da but of r .. iga.tion · s 11.

n outloo , s oi 1 for th . oa. t .:rn slo of o1or do, 1 not

ng,

n

or · con i rabl ti 1 t h ber>n 1 t t ou ro t

go in to 'OE!l" 1st or riod o! 0 e r to co e. .a !c lly,

e n ov1 1. to t d~ eriod 0 rOUil t or t t six to t n

:re.

r

_•

in< it .oul th -refore se~ fair to .assurr t :.tt i l l be bo t as any

i to ttor or 1 · s tol r 1 condition. ~s _{s oortin}

t~ is cnnolusi n, b ed !ll'>On et rolo 1 c· 1 re·co -ds t k .n t the

Color rioul t, Stat·on rt Col i s, t ollo 1in

lation o terc nreoi it tion !B found to exist:

·!ir Je Prature ~· r oi it tion Inehe

192.' 24, 25 6.3 17.6

19:"6., 27, 2 46.6 1 .3

1 ~

.

_•

31 46.6 12.9

1 2, ....,

'

.,4 48. 12.4

lhi r 1 ti n to s th th an ter.3 er t re h s 1 crea.s d

d t 11 ed. It i ner 1 ~~l · nown thtJ.t the terrper tu e

tll!'O l ho 1t th "Jntt ~d in the r infa.ll lo _• .~.l"~e

o.a c ntri lt1 to enn ratttr i not 0 ve

_•

it be

conJ at' ' d _{tb t} 1 t t 0 l 0 in or sing the te ture,

or ior of 00 t

.

to t. eon tin . t .. 0 a u o

14

-lo 1 cal thillfl o inc"' b rr d.u.a.11y a!ni~ in tern r ta.r • t at exro ot a f'J.rt e:r l"Jli h .. in ere se, no incr s. or s 11

de-cr in ~ .iil C'Y r tiL c~allfia 1t e :n ot b on 0

a. ,e~ 1n lll~no -: n :l. e<l on vera.,. s, a,-. o .... c .tll" gro inps.

OO"rd tj,: t vt· t n t ~ rt Co l ~ e

-t b,O 0 r erio of 8 oons o 1ti ve y ear e it ,ibl 0

·S rblish 11 1ts th t n . ature. t s of

f r t .e crio J;<n _~ 1933 to roh 19::5. in'1lusivn.

19 1934 1935 0 _Fo 0 J _• ~3.3 4-9.6 5.8 e _• -3.9 4.4 5.1 ar. .6

.a

4.0 r. -2.2 2.4 ~ay -n. •-6.8 Jun ·5. ... 2.5 .T lv , .. 3.5 ... 5.0 lug.

-

.1

z.e

"'' pt. ~ .7 -3. Oct. +4.7 6.4 ov. .. 5.4 ..:.4.7 D c. l l . l 5.2

Ot t. e 27 re 11th only 6 de-icienoy in th ,ontbly ree

-

15-Con~1us1on and eaonrn ndat ons

i'va to tbe y-out ., t . 1 otion ten on· th~ e _{J..O ·•}

1 .to. t 600 second-f !Jt, provid · ng

· c ncreto 1nv rt is pl~c~d n t e th _, t ne • If t hi a

in9ert is not uon~tructe • t aar yin eut. ity i l l 10~ exceed 600 seo,nd

-rurther c n ider 'ti n be JZiVE:n '-'o th:. truct-.... es t t e aet .,...rta.l of the oft t · t(Sr t nnel.

s of 1. -port nee r 11 1; to occur in the tr t sfer

of t n tm n 1 '&te:r fro th east rtul to the noint of livcrsion on

~outh Boulder Cre k.

er on.l i,~paotion Ol the lin 1ror. th- 1 th iversion T~nrks

on ~ut • ould r C er:.:< t~ nd 01 ·n~ project o ~oc y ~- ~ts h s b~ n rr: de.

on t.:o tb Bo 1~ G:r :rae" =-re o:f ~ s tanti 1 ign,

nd so t)l_' ne .;,!:) t 'PrO id ... pl r6tcc·.;ion aP-~1nst ;;:) ' d e11tering t e

1ivcrsio c'!i.n el

~h ra"111 o jurn 'ieh 2.11 occur a. · the u stJ." n end 0~ si .hon 1 is

beli v o. to '11} 1 _{·joCil r} ci flOl~ u ~ .. c _{la'iu on arl}

b t een tunn€1 s 1 J.Ud ~, Jt ould be au jno

.

·~ f• 1 1 9. roo

fro in ..,1 e unl ss m _{cost 0:' s oh}

16

-·l'n · · strr#$"nt i t!'to li nr- n t t: th aqu ~· e fro. tt'. po~nt of

rsio e,: to th e t

to ori.in. 1 line.

lO

to 1 point ;.~ere .. thn delivery cnn be in o Le:rden or 1\lst n ... reeks. or

thr u 1 fi cr · · na 1 i to 1 e r Cl" ok.

Th d li'v !;' f th tunnel ·.a~G'r into the outh '?l..;.tte Ri'Ver thro h

p:?i:nt ne. tirt ·u ton i l l ot ret to th citv the

11 ·;.~. icietl~J o-: t is ne a· nl •

liv o 1 i~ , 1pnl. · t ~int ·1 stre " fro t nrlin~ton

·~ncl~·l _{ot onl;r it} of j, b tter o. rtun:lt 1' or exchJ rz of 1rect

lo 1 "'1 ti n ri hts. but "~il s~ible t _ t~~nsfer of

tor e in o .heAsr: .. n

ete" non inttation o~ th zard of r u ht shoul. be ff ven

du tion

a

al ssibl b· t be m de to secure th a vant s

April 22, 1955

South Boulder Diversion Conduit

The follo.win? reco endations ·ere ·oJ' .~r. Iia ili

L. Parshall, in _.,e-r·zon, while checkl.ng ov .r the loc -rion and de ... i 1n

of the South B ulder Diversion Conduit, nd incorpor ted in ~~e e-sign as the work pro67essed&

{a) Th original arrange ent of t~~ conduit et een

Tunnels No. 1 rnd .So. 2, consisted of t·ro sip ons over th

cree-K 'valley and e bench flume along t e up;er hen11: of the creek. The first siphon of half capacit .. r ~~t.s Cin a rather high

crossing oYer the creek an 1 ~~ about 145 feet long. 'lb

bench flume was t1 bout 587 fe · t long nnd full Cf.»paci ty. 11e second siphon ill as about B65 feet long and half c ;paci ty.

The tr&nsition fl~o-:m Siphon i~o. 1 to the boneh flume

created a rather bad hyrl2Gulic condition on ~ccoun of th

sharp f_.. gle of the , ignment n-t thi point. The an-:le of

de-flection wa.s 62° - 25t.

To elimina·te this bad tr<Jnsi L-ion, one siphon of full

c~"' paei ty was put between tunnels No. 1 .:. 11d No,. 2. Tl~i.B sipho.n

ha.s tu;o crossin.5s over the creek cu+· 6lves a .uch more uirt;ct

route ~ind treneition of the ~ater. It has the &daitionel ~d­

vantage of being closed while t e bench flume wa · or;..en. It

tb:o.s giv--s a closed condul.t the entire distance froa the

in-take I<to:rks t.11rough the foothill.., to t:Le east ort··l of i.ln .. el Fo. 5.

{b) T-:.tnn 1 dO. 1 ~as . ·ut o n curve ~o a ... tc .,:ive

a. tan.~ential cransiticn :f.'ro t ·the tunnel to the si.;.,hon md 1ro the Venturi Flu e to t.he tunnel. !"he alignment o ·· ~ur.1nel .~o. 2

c s ch::.n0ed by ·-Jlacin .. th2 • t• t .Portal so e oista c:. south of

th ori6inel loc~;d7~on, thus putt in~ the "tunnel a d tJle e .... st end of the siphon in (i Jtraig :tt line.

(c) rhe Ven "turi Flum

f':'let to 12 feet.

~s chang d kn .idth fro 15

The elev& tion of t" :e cre-'"'t of t e dana , ac raised about t ·o feet to insurt <.. le .head to compens~. te 1 or losses n

the trc,nsi tionh and to give deo.u.&x drop ·celo ·t e Venturi Flume to ~~void. objection-~ble $ "'~ E.rgence of th flume.

(d) The osition of ·•· .. 1e trash racA: wa0 hanged. from

normr.il to the strek.Je """o t.n.at Oj. r .. posi t~on paralle with .he

-1-• eco1-1-• .enflav..~.on~ ~tie bJ- Mr. · ... -t .Jh L. Pv.l s~ttll · 1 th

rr:-.fe-:r ··nee to ra~ t:~outn .t.ou1ch r Dive ·sion Ct.mdui·t -Con tl nuod •

i.e., frc.m a _.ositirm u str~~;;.~ _.;tna pa"rallel with

to t~. pcslt,iotl no~n:t l to t.he dam ~.t.d in •1 Vi;·rtie.bl

6

or chtinnel nrrEln~e.ne11t is Jo ~ .r- ) oelo·, the ...,. ~m J e let.,vy Jtp. t ..; .. i6ls by he cree ~·

ix ort ~ t bes }1 .. ced it. t 1e ben to1;.. of tt.

j. ~litlke ~t ... ucttU"e r fltUI'le to t ... ·,. of;,' ..:..ny ~., tc.! iD.l th~¥:n; .. •:"Jy o~ l o11.aport '!;d .. .lonr::~ the bott.o; v.nd thU5 1

i:ee'p l.'t from ·•.:1t~r~

ir..~.g the eond ·it.

( )

t "'\..' h.

of' tbe sir~bo .. -:t

i or ·11 of tunnel

i1;;J lph L. P:.1r·<IO~ht~.l

? e ~u ~el .. • 4

s :rai£-1 ten c t e lin~

~ ~er fl"O! T ""4'1.el Nr;.. t; • n l ·io.. 4 •

.., tter loce t.ion of the eip11on 1 (;:tween

It C(;nsider;;lbly L"'ed at::- a the hei ~h t

botu:a oi' the dra~ t the e~·st

!~nnel Jo. S w ~ c

·.., f ...

Cone; til ... _. Eydr· .U:;.. ic r1;;ine er.