The Caldwell tribune. [volume] (Caldwell, Idaho Territory [Idaho]) 1883-1928, 1915-02-26


has been operated continuously
throughout the year furnishing power
for the construction of Arrowrock
dam, eleven miles above, and for sale
under contract to the Idaho-O Oregon
( Light and Power company, and ior
use in the operation of electric drag
line eXcavators employed on the con-
struction of drains in the Pioneer
Irrigation district. The diversion dam
is of the cyclopean weir type, has a
maximum height of IS feet, and a
length OF crest. including the logway,
OF 240 feet 1t has been built at a
cost, exclusive of materials furnished
by the United States, Of $236,9Sl.
Main Canal Systematic main canal
above Indian creek, except for 90
miles that are concrete lined, in an
earth section 70 feet wide on the bot
tom IL feet high to the top OF banks.
The lined section is 40 feet wide on
the bottom. with the same height Of
banks The capacity Of the main can
al to Indian creek is $500 second
! feet The maximum amount OF water
yet carried is 2,243 second-feet, car
ricd during the season of 1914. For a
distance of 9 miles the water of the
main canal or trunk flows through
Indian creek, and at point seven
miles southeast OF Nampa is again
diverted by concrete diversion
dam and flows for a distance of eight
miles to the Deer Flat reservoir. The
section Of the main canal between In
dian creek and the reservoir is Of
earth, 40 feet wide on the bottom, II
feet to the top of the banks, with a
capacity OF $500 second-feet The
main canal is on grade of .OOO32 and
was estimated to carry, when at its
capacity, a deFth of water of eight
feet
Distribution Systematic distribu-
ton system, as operated during 1914,
was the same as that operated during
1913 and described in the last annual
report of Operation and Maintenance.
Very little trouble was experienced
during the year with any portion of
the distribution system, no breaks OF
any consequence having occurred.
Deer Flat Reservoir-The filling
.of the reservoir was started on Janu-
airy |, 1914, and the maximum avail
able storage during the season was
lp-tOCS lN-lCCl, corresponding ~ ii
height of 25.3 feet above the sill Of
the gates, which height of water is
90 feet greater than during any pre-
vious season. The losses from this
reservoir are constantly becoming less
each year the reservoir is filled and
after the entire area has once been
flooded it is anticipated that the
losses will be nominal.
Arrowrock Reservoir--Good pro-
gress has been made during the year
at the Arrowrock dam, the features
covering the construction Of which
have been outlined in separate re-
ports. 1t is anticipated that the con
struction of this dam will be complct-
ed in 1915. During which year some
water VIII probably be stored for that
area now termed flood water lards.
Weather Observations.
The maximum range of tempera-
ture for the Boise project is % de
grees fahrenheit to lO7 degrees
fahrenheit The average range of
temperature is from 0 degrees to
lO5 degrees fahrenheit. The range of
temperature for 1914 was approximate
ly 5 degrees to l0l degrees fahrenheit.
The average rainfall is l2.7 inches
'ii a., lol l9iT was 90 incheS.
ne Wihd movements are generally
rom northweSterly direction and
are NOT very severe. Very little
lrouDIe is experienced on the Boise
:, ny WIND storms, and very lit
nc IeieVeII'hg ana reSeeding has been
ooS"slo'leu on account OF such storms,
except possibly in a limited area
"'V"" loe"lly as SAND basin.
!, - "elio'eiCy III tne precipitation has
Zen cHperieheeu during l9l4 and IN
'"lt - "elole"Gy mas existed Tor every
;,,o ,h slloe January MS resulted
"A ti' i'''R"loh season beginning, on
,tpi'i ISL several weeks earlier than
,'Su", "S wen as IN larger average
a,' ,1, VI water per acre beng used
va '''' '"''o'
C., operation.
ie'Ie' a. Nonditlohs-Ih e operation
! :, loi ~ eohmenced on April
l91 al" I'ueu on oCtoDer 10Th. The
.ro";I ~ .NPLll was very dry and a
o',''u0i I"iT 3r8er amount OF water
,han US" S curing TINS month in 1914