The Kennewick courier-reporter. [volume] (Kennewick, Wash.) 1914-1938, 1917-01-04

tributaries of the Little Klickitat.
Storage Facilities and Water Avail
able for Irrigation
The amount of available water for
the project depends to a large extent
on the ultimate development of stor-
age, and this again on the economical
cost per acre foot stored. In this re-
port seven storage reservoirs have
been contemplated, as follows:
Name of Height
Reservoir Of Dam Capacity
Two Lakes ......... 100 $4,000
Fish Lake ........ LAP $4,000
Caldwell Prairie PIP 10000
McCreedy Creek ..... 16O 21,OOO
Plscoe Creek 80. 49,. 15O l9,OOO
Tepee Creek -. ....l 10 25,OOO
Missouri Flat .216 81 900
Careful tables have been prepared
from the flow Of the Klickitat river,
making due allowances for the various
losses which show that 267, 800 acre
feet is available for storage in these
reservoirs. 1t has also been shown
that there is available on the lands of
the project during 1915, 275, 400 acres
net, after utilizing the Klickitat river,
Cispus river and such additions as are
available from Cedar Valley and Lit
tie Klickitat during minimum year
and from the natural flow Of the
streams without storage. The mean
or normal flow of the Klickitat should
be about 100000 acre feet, whereas
the flow for 1915 was All 900. There
fore it can be seen that the 1915 flow
with an allowance of 20 per cent de-
ficiency during the lowest year record
would make available 344, 400 acre feet
whereas the amount available from a
normal year has been computed at
344,800 acre feet on the natural flow
basis. 1t is therefore safe to assume
that with canal capacity of 1850 c..
f. S. that 345, 1000 acre feet would be
available from the natural flow of the
stream. On the basis of storage, how
ever, and 345,000 acre feet available
during the irrigation season, for nor
NAL year 214,00O acre feet additional
is available.
Water Rights
This subject has been fully dis
cussed in the supplemental report un-
der even date, so a statement here
should be sufficient to the effect that
the district would seem justified to
purchase all the water rights, rights,
franchises, surveys, etc., of the Kick
itat Irrigation & Power Co., as well as
the water rights, rights, lands, etc., of
the Northwestern Electric Co., and
Wilbur S. Yearsley, and would be JUS
titled to the amount of $2O0,O00.00 and
$125,000.00, respectively in making
these purchases.
Duty of Water
After careful study of the lands,
the water supply available and crops
suitable for the project, it appears
that duty of water of 1.67 acre feet
or twenty inches for 100000 acres,
seems the best for the project, espec-
tally as there appears to be 334 600
acres of Divisions A, B and C., in
| Glasses 1 and 2. There also appears
to be a sufficient water supply for this
amount of land, after making safe de-
auctions for the most important
losses. L..
Estimates-Carefu estimates have
been prepared for each of the reser-
voirs, the main canals and distribu-
ton system. In designing the dams at
the various sites, the height of dam
| anu Tie HdCeTldlS dVdlidUiS Have USeL
taken into consideration, as well as
other topographic and general condi.
tions. AS a general proposition it may
be stated, however, that concrete core
walls have been considered for all Of
the dams, that liberal allowances have
been made for all outlets, conduits
towers, gates, etc., on the basis of con
crete or permanent construction. Safe
estimates have been made on the
flood flow from the reservoirs, ant
hence a spillway capacity. Wherevel
possible on account of the water sup
ply and material the hydraulic fill pro
cess has been. used in the estimate
These dams and reservoirs are item
lied in detail, but here may be sum
married. as follows: 5-