Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1899-06-26

wall absolutely imuervloua 10 water
The plans " the dam wafe then utc-
pared which contemplated structure
of rock laid up IN dry walls two hum
drcd ana ten foot thick on the bottom
and fifteen feet thick on top. In the
body Of this rock steel case was put
consisting " steel plates riyeted to-
Hether. extending into o. trench two feet
deep IN the rock on each side of the
canyon, and from the concrete f1undn.
tl0n to the top 81 the dam. thin steel
plate was coated with usphaitum. and n
wall four inches thick. widening 10
four feet, next tho side walls NJ the
canyon. Asphnltum concrete. deposit
cd hot, was placed on each side Of the
steel plate. thoroughly bedding the
plate IN usphultum and protecting 10
against injury from moisture. Around
the bottom ~ the plate n bed ~ cone
crete six feet deep was put. securing
10 against the passage ~ water under
the plate. a tunnel i've by Nix foot
was cNcnvatod through tho solid rock
around the end of the dam 100 foot
long. ana "a shaft sunk from the top
Of the rock into the tunnel. In THIS
shaft two thlrty-luCh valves are set.
with custlrou pipe placed ON each side
Of the valves extending into the tunnel
on each side nf the shaft. the pines
and valves hoddod IN concrete and See
curely closed the tunnel around the
pipes.
A. the upper end of the tunnel aux
Hilary valves. similar 60 those IN tho
valve chamber are placed. with stems
running tu the surface N tho water in
the reservoir A system " smaller
valves are also a1 placed that the
tunnel can be filled or oinptiod % water
Independent N the main valves 10 ro-
llcvc the pressure and remove air that
may accumulate. These auxiliary
valves will be- used only In cases of
emergency and 10 facilitate repairs In
case 81 Injury 10 the main valves.
over the dam a waate-wny ls con-
atructcd. thirty foot wide. 200 foct long.
TO carry over and beyond tho toe of the
dam the natural iow of the creek when
the reservoir ~ full ~ water a fish
way has also been constructed Ho that
fah can so over the dam.
The dam was completed about the
middle " April and Il took but I'VE
days 20 nli a.. and the flow ~ tho creek
has been going over the wastc-wny ever
since. The plans N tho engineers have
been fully realized. tho result show
inE that the gates are under perfect
control ana the leakage with "a fun
head ~ water ~ less than one cubic
foot per secondly far less than o. us
uni. The lonse-rock structure has met
every requirement and while the exc
penditurr has been large Tor tho canal
company. II has been much less than
any other form Of dam would have re-
qulrcd.
The foundation. tunnel and valves nre
N n capacity sufficient for n dam I 80
feet high The walls are solid on each
side N tho canyon and the structure
can be- raised M any time 90 any oNtont
desired without any additional expense
for the tunnel or outlet gates.
FIFTY feet additional on the dam Will
Increase tho capacity of the reservoir
o. about nvo times ~ present capacity.
and tho Increasing demand for water
viii without doubt require an addition
nj nfty fcct on this dam within n short
time.
To tho patrons of this canal the corr
talnty 81 a full supply ~ water for
the whole irrlgating season means "a
great deal. They can count on water
and irriFnte their crops. especially late
ones. such M sugar hecta without any
uncertainty about n, knowing that
there IL In store Tor them sufficient wa
tor for I 900 acres of late crops that
have heretofore been lmpmctlcnhlo
Tho value ~ this water can be- realized
when II ia understood that the water In
the reservoir means 1000 acres u crops
which. N valued NJ only $40 per acre.
means $40 0N0 each year into the poe
kets ~ tho farmers under this canal:
and with tho dam raised nftv feet
$500 O00-to the farmers each and every
year.