The Wenatchee daily world. [volume] (Wenatchee, Wash.) 1905-1971, 1909-08-03
add very considerably to its material

add very considerably to its material
growth.
1.-THE Columbia river, with its many
large tributaries from Montana, Ida
no and British Columbia, drained an
area of 100000 square miles, and
drawing its supply from the snow
fields of great mountain ranges, af-
foris large possibilities for power de-
velopments. The annual minimum Is
reported as ranging from $4,000 to
10000 cubic feet per second. This
is a run-off from a drainage area OF
SO, 100 square miles, of which 10000
to $4,000 square miles is lake sur
face At Kettle Falls the drop is 37.5
feet over a dixie of rock, making
dam and power development extreme
ly simple. With some storage the
energy of these falls may be safely
rated at 100000 horsepower.
"At Rock Island there is fall of
1875 feet in 5000 feet, and mini
mum discharge ranging from $4,000
to $4,000 cubic feet per second.
1.-The energy now wasted at this
point amounts to 10000 horse
power.
cat Cabinet Rapids the fall is ten
feet in 5000 cubic feet, and the en-
ergy equals $4,000 horsepower. At
Priest Rapids the fall is ~ feet in
ten miles, and the energy of the
stream is $4,000 horsepower
I'm the section known as the Grand
Dalles, which includes the cascades at
Cello, Ten Mile Rapids, The Dalles.
Three Mile Rapids and Two Mile Rap
ids, the fall is so feet, 20 feet of
which is a sheer fall at Cello. The
minimum flow is rated at $4,000 to
1000 cubic feet a second and the
minimum energy of the stream is
236, 200 horsepower, of which the
fall is "a feet in 5000 feet and the
minimum energy of the stream is
1000 horsepower.
Besides the large falls and cas-
cades referred to, there are many
others from Kettle Falls on down to
Rock Island. While the Snake river
has much swift water, the removal
of dangerous rocks would make 1t
navigable from it's mouth to some
distance above Lewiston, Idaho, and
consequently it does not afford many
promising power sites.
The power in the Spokane river
has already been developed in sew
eral places, namely, Post Falls, the
city pumping station at the series
of rapids and falls at Spokane, and at
a point nine miles below Spokane,
and at point opposite Reardan. In
all, 10000 horsepower has been de-
veloped. Some of this acts directly
on the turbines of the city pumping
plants or of flour, feed and sawmills.
The greater part, however, is con-
yerted into electricity at high volt
age and transmitted long distances
for light and power. In general,
nearly all the light and power used
in the state, with the exception of
that developed by the lumber indus
tries, which burn slabs, edgings, saw
dust, etc., is supplied from hydro
electric developments.
Most of the towns and cities in
the Inland Empire are supplied with
light and power from the Spokane
river, while interurban railways sup
piled with power from the same
source are rapidly threading the rich
wheat and produce belt of Washing
ton and Idaho.
THE fall Of the Methow river is
about % feet per mile, with mini
mum discharge of 400 cubic feet a
The minimum flow of the Wenat-
chez river is about $50 cubic feet
second, only about 25 per cent of
which is used for irrigation pur-
poses, and that only in the lower
valley. For a miles through the
Tumwater canyon and before emery
ing into the agricultural valleys this
stream is raging torrent. The