The Yakima herald. [volume] (North Yakima, W.T. [Wash.]) 1889-1914, 1911-06-07
Continued from first page)

point, returning the surplus water to
the river. 1t is evident that such
proposition as this merited very little
consideration. as we shall have plenty
Of tie for our money without under
taking costly tunnel: moreover this
water right was filed upon by local
corporation just a few days previous
to the inception of the municipal
lighting investigation.
The Plan Recommended
have now shown the disa dvantages
pertaining to various water power
plants. and am glad to be able. to pre-
sent one OF which no particular dis
advantages have yet been discovered
and which on the other hand appears
to be an extremely fortunate ind for
the city of North Yakima.
This proposition. which is the one
adopted to be worked up for the pre-
lmnary estimate, comprises cana
line of less than three miles from the
point of diversion to the site of the
plant: this site being located al faV'
ora BILE point having mead which VII
WELD sufficient power for several years
to come; the proposed canal line traV'
erses land which, though mostly so TO-
Gated with reference to htllsldeS RS to
be worth little or nothing as aGricu'-
tiiral land. will not necessilate very
costly work for the canal construction
being chiefly material which can DC
easily handled.
Another favorable condition is that
the return to the Yakima river or the
diverted water is aided by the exist
ence of 2 slough of which ii is pro-
posed to take advantage, by utilizing
-Ft fc
convey the tail water back to the river
We are particularly fortunate in be-
ing able to find a power plant site SIT
uated so close to the city that trans
mission line of about three miles in
length is all that will be required.
The site for the proposed power
plant is advantageously situated with
reference to transportation facilities.
1t can readily be provided with track
connections from either or both the
North Yakima & Valley railroad or the
Mckee extension of the Yakima Valley
TRANSPORTATION compa nN's tracks thus
enabling the cars with the heavy ma
chinery required for the plant to he
brought directly under the cranes OF
hoisting appliances provided at the
works. and eliminating teaming.
Hydfaullc DcNclOphlcHt.
II is proposed to divert water from
the Yakima river on its left bank IN
the Sc. 4 of section I, township .
north range 10 east, w. NJ, construct
ing a low diversion dam or wing dam.
1t IL proposed to dig canal from the
diversion point to a point in the NE.
q of section 81, where is to be locat-
ed a forebav, a natural vine being
% : Ion \ inn
for the forebav Along the westerly
side of the forebay will be located the
headgates supplying the penstocls
leading down the bank to the proposed
power plant
The proposed canal line runs close
to, and to some extent interferes with
the lines of the existing Mckee and
Hubbard canals. and ii is proposed to
take the combined flow OF these two
irrigation canals, 40 C. {. s. and con-
vey it in our canal as far as the fore
bay, where A gate and measuring weir
will be provided to return this guam
titv to the irriga ton canal. 1t is pro-
posed to place a drop at favorable
site between the two irrigation bitches,
some little distance south Of the fore
bay. for supplying the lower one from
the uppre. However, if preferable.
both gates and weirs might be place
at the forebay.
From the hydraulic power plant, To-
Gated in the ne. u Of section 81,
township 10 n. range l9 r. W. NJ, It
is proposed to dig a tail canal to a
slough which passes under the North
Yakima & Valley railroad tracks. the
length of the canal being about 1860
feet. The tail water viii then con-
tinue on 2640 feet further to the river
the slough being enlarged where
necessary to carry the quantity.
photography.
In order to determine what availa bic
flow can he counted upon. consulta-
ton was had with the supervising en-
gineer Of the t. :. r. s. who stated
that the Sunnyside irrigation unit
would require 4 maximum or 600 C.
f. :. and the Wapato unit maximum
estimated a 1900 c. + $. these maxi
NUNS occurring In July and August
During the other months of the irri-
cation season the percentages re-
ulired would he less than the maxi
mum. these percentages being as OIL
lows:
April 30 per cent.
MAY 90 per cent
June % per cent.
July 100 per cent.
August 100 per cent
September so per cent.
October 81 to 40 per cent
Where the. natural river noW at
Union gap falls below the quantity
figured in this manner it would be
supplemented by releasing water from
the storage reservoirs. TO arrive at