Rogue River courier. (Grants Pass, Or.) 1886-1927, 1912-10-25

mat tue NIdNt creek water pro-
position is feasible one is the re-
port made by Engineers Hobson and
Hail, who recently made a pretty
thorough investigation of the sources
OF the water supply, and the engi-
neering features involved in bringing
the water to Grants Pass.
The engineers have made formal
report to the city council, under
whose authority the work was done.
covering all phases OF the proposed
work. While there are many of the
details that could not OF course be
definitely reported upon, enough was
done to establish the practicability
OF the plan.
The engineers decided that
point on Grave creek, in section 6 of
township "a, in Jackson county. of
tered the most available site for
damming the creek, and that the
drainage area lies within that portion
of the Rogue mountains along the
divide between that stream and the
headwaters of tributaries of the
South Umpqua The elevation of the
water shed is from $500 to 5000
feet above the sea level, where the
precipitation is the maximum for the
coast district.
The plan advanced includes the
construction of the dam, the build
ing of ditch and pipe lines, of irriga-
tion canals and subsequently of the
development of electricity for light
and power
Construction would involve the
building of dam to a maximum
height Of 40 feet, which would be
.1,012 feet in length on the top, and
would have a storage capacity Of
forty thousand acre feet of water.
The report says that it appears that
AN the material for an earth hll dam.
approximately of 10000 cubic
yards of earth, can be secured with
lin a distance of 1000 feet of the up
stream side of the dam, and that it
can be put in place by means Of
races and fumes at nominal cost.
In dealing with the physical fea-
lures Of the work, and of the prob
able cost and the revenues that
could be derived, the report has the
following.
Transmission of Water.
Leading from the dam there may
be excayated along the south side Of
Grave creek canal of any desired
capacity, and extending to the divide
at the head of Horse creek, a tribu-
tary of Jump of Joe creek Such a
canal would be through a dense
growth of timber affording excellent
protection against evaporation the
entire distance. At this divide the
elevation is 500 feet above, and two
miles distant from the point of the
proposed location Of a power plant
near the junction of Jacks creek and
Jump of Joe From this point irri-
cation canals may be constructed
along the 1900 foot contour in eth
er direction so as to cover the en-
tire area of irrigable land in the
Jump OF Joe, Louise creek and the
nogue river yallies, approximating
10000 acres.
Also from the location OF the
power plant water for municipal
supply my be conducted by a suit
able pipe line about fifteen miles in
length and with fall Of 400 feet to
the level OF the present city reser-
yoir.
Transmission Of Power.
The transmission line for power
to the city would not exceed II
miles in length, and it is probable
that the present line extending to
the Greenback mine might be taken
over at a nominal cost This line ls
in good condition and is well located
for the purpose.
Water Supply.
First The natural drainage area
tributary without development. is
approximately 5000 acres, which
may be doubled by the construction
Of drainage canals.
Second Assuming the annual
run-of TO be only "a inches. which
It is believed ls considerably less