The Anaconda standard., 1898-01-10

ly makes a continuous record OF tle
pressure in the pipes
Irrigation Project.
| am indebted to Mr.. Eugene Cafroi
for the following facts:
I'm the fail of 1895 the Butte city
Water company diverted the head wat,
ers of Fish creek across the Contlnental
Divide to increase their water supply |
| in Butte City. AS this necessitated tax
| ing considerable water from one Vailey |
and turning 1t into another so that the
/ water did not return to the stream from |
which it was taken. it required the pur-
chase by the company of large num-
ber of ranches which were located
/ along Fish creek between the noun
/ tans and it's mouth. In this way the |
company acquired the title TO ABOUT
| 5000 acres of cultivated land. Ihefe |
was sufficient water left in Fish creek
/ after taking out the water from It's 4
head to take care of most or the
ranches, but in order to make those at
the lower end of the creek saieabIe.
and furnish them with an ample sup
ply of water for irrlgating purposes,
the company in 1897 decided TO con-
struct an irrigating ditcn, taking its
water from jefferson river, and extend
ing the ditch past their ranches on
lower Fish creek. In long this they
have permitted ranchmen along the
line of the ditch to join with them, ana
a ditch company is to be formed, known
-
The company is stocked in such a
manner that each share of stock repre-
| sents 25 inches of water. The mead
gate of the ditch is placed on the Jeffer-
son river about 1000 yards above the
Iron Rod bridge, and winds on a
grade of 26-10 feet per mile for IL
miles, emptying into Fish creek. Ihe
ditch is designed to carry IN solld
ground 1000 inches Of water, liberal
allowance being made for evaporation
n md
from the ditch forms an embankment
on the lower side of the ditch, winch
will be carefully built, and which, In
the course of a few years, will more
than double the capacity OF the ditch.
There are no peculiar features about
the construction of this Glitch. 1t is
necessary to go through the town OF
Silver Star which is done by placing
a covered fiume along the main street
of that town. The total length of the
ditch is about 13 miles, and there are
about 40, 900 feet of lumber required for
bridges and fumes. The contracts are
let and the first mile of the ditch is
about completed
..Phe contractors have until the 18th
of June in which to complete the work.
The head-gate is built of lumber sup
ported by concrete masonry ana IS Il
feet wide. The bottom OF the head
gate is placed at two feet below the
bottom of the river at the point of di-
version
Water Power.
The development of power from our
rivers has been the most important
engineering work of the year.
Canyon Ferry Dam.
At this point on the Missouri river
the dam of the Helena Water q Elec-
tric Power company is nearing compile
ton. The cribbing is now % feet above
the original surface of the water, and
all masonry, excepting the power house
walls and transformer house founda-
ton, is completed. The four sets of
water wheels, of the American Special
Turbine pattern, which Will give ap-
proximately 1000 rse-power, are in
place, and also two turbines of 15O horse
power each for running the eXclters.
Two 12-foot penstocks of steel carry
the water from the forebay to the sets
Of large wheels.
The work when completed will con-
tain 1000, 900 feet board measure of tim
Der and plank. 1t was commenced july
4, 1896, and will be finished early in 1888.
Mr. Theron Nj. Ripley, the engineer
in charge, to whom | am indebted Tor
the foregoing notes, has promised the
society a paper ON this subject, and it
, will be awaited with great interest
Dam on t:Ig Hole River.
! Mr. NJ. S. Parker, who has charge of
the work. has kindly furnished me with
} the following notes on this enterprise;
e The development OF al water DbNti
, by the Montana Power company on the
> Big Hole river. three miles above Di-
+ vide Station on the Oregon Snort Line
railway has been in progress since
! Sept L. 1897 The object of this deVel-
: opnlent is TO furnish power to be trans
mitted electrically to Butte. 81 miles
, distant The development consists IN
the construction of a crib dam across
the Big Hole river. having length of
/ 500 feet, with height of So feet from
.syf NhH
: low water mark to splilWaN crest. M ne
1 spillway has width of 222 feet, the
: balance of the dam being 10 feet higher
p than the spillway.
: The dam has base width at high
/ est part of 100 feet. The spillway por-
. tion of the dam Is a series Of steps i
i feet high. except the top step, when Is
n but six feet in height. The tread ol
: the step is seven feet and the incline Is
q six inches to one foot in height. INT
a high portion of the dam is carried u
n in lO-foot steps with vertical faces
THE dam is TO be filed with rock. Ihs
y upstream face is covered with sever
= inches of plank. two layers OF tWo-ihcI
q plank and one of three-inch, with con
4 crete core extending from bedrock t.
: above the original ground surface. Tn
i excavation in front of the dam IS re
4 placed with concrete. or Stag puddle a
q circumstances require. the whole 70 h'
II faced with an earth embankment Wate
), is TO be taken 10 the wheels through
~ large dune, the inside dimensions belnt
- Is feet in width and 2S feet high. Fron
"a this fiume water is to be taken to tn
l0 wheels through steel penstocks SIX AM
In a half feet in diameter.
n THE power house is a building boXlZ
feet ground plan, equipped with fou
!. special turbine wheels made by Jane
L Leffel These wheels are 81 inches II
n diameter and are to furnish loo hors
If power each under 6O-foot head. I'M
- head will be maintained by using iiasl
a boards on the crest OF the dam Th
II pattern of these wheels is the same a
used for the recent Niagara power de
II Velopment.
10 These wheels are directly connecte'
N with electric generators for furnishln
a the current for transmission The plal
10 also contemplates the adding of NV