Imperial Valley press., 1917-10-31


ng from the fact that the Colo
river would, if not artificial,
in check, flow northerly from
ielta ridge across Lower Califor-
lands into Imperial Valley. The
cation District is the natura
.ency, by reason of the vast inter
sts at stake therein. to hold bac'
ihe high waters. This is done b,
maintaining and Strengthening a sys
TEN of levees which have heretofor,
, been constructed along the river i
Mexico with funds provided in par
| by the United States and in part b,
the District and its predecessors i
interest. The District finds it i'm
possible to await action by the gov
ernments of the United States an,
Mexico. 1t has averted disaster thu
far, sometimes only by narrow mar
gin, and is now prepared to make ad
ditional large expenditures in Mexic.
for protection purposes.
Flood Control Estimate.
Consulting Engineer G. G. Ander-
son, together with the writer, on
anuary 4, 1917, in a report and cost
estimate to be used as basis TO-
a bond issue, which has since been
voted about Is to 1, called attention
to the need of the following:
For raising Volcano Lake and
other levees, Strengthening
and extending the same. $500. 900
For equipment, locomotives,
steam shovels, dump cars,
etc, for use on protection
WIN lUU.UD1
For opening Cerro Prieto
quarry, and railroad to the
EC.UUV
These sums for expenditure il
Mexico were supplemented by abou4
s125,000 held in reserve from
earlier bond issue of S50O,OOO 70
protection work, and do not includ
an additional item of S105,0OO rec.
for use in revetting rive
and canal banks, mainly within Cali
fornia.
The foregoing facts are cited
show that the river problems whic.
Imperial Valley are not re
'trlcted to those which relate to wa
,er diversion and that ultimate actor
~ the United States government ma,
lave to go far beyond an apportion-
nent OF water between the Yuma pro-
ect and Imperial Valley.
New Intake Permanent.
"fhe Imperial Irrigation District
IS now constructing new intake at
Hanlon's, just north of the soutb
boundary OF California and is maxine
improvements along its main canal
which are intended to lower the canal
oed IN the upper canal reaches so that
the diversion Of water into the canal
can be better effected than hereto
fore.
This intake will be retained in
service whether the District canal is
ever extended to Laguna dam or not
even though joint diversion at the
Laguna dam should prove succe
Tie second headworks would be neces-
sary to safeguard the irrigation svs-
tenn IN case of an accident to any part
Df the IL miles ofcanal between tho
Laguna dam and the heading at Han.
IONS. 1t seems probable, therefore.
that full service to the canal at the
Laguna dam may not be found desir-
able and due consideration should be
given to this fact when the terms are
named which the chief engineer of
the District should take into account
m reporting his findings to the dis
trict.
therefore, you are requested to
lurnlsh the District with the cost,
both as to building to Laguna dam.
upkeep and diversion, of connec
ton to divert 1900 second-fe of
water, and, as separate proposition,
5000 second-feet.
Respectfully,
&C. E. GRUNSKY
Consulting Engineer, Imperial Irri-
cation District"