The herald., 1897-04-20

has proved ltSel heretofore III o'hci SAe-
les of such Importance that attention
only needs to be called to one instance.
by means of which 1t has been shown In
the city of Columbus, O., that the loss
by fire, previous to the installation OF
the waterworks was 65-1O0 of / per cent
of the valuation. while after the install
lation of such waterworks, the loss by
fire was reduced TO from II 400 to 13-10o
OF per cent. thereby saving within five
years more than the entire cost of the
construction of the waterworks.
Merely to illustrate the commercial
revenue producing value OF the fire hy-
drants attached 10 a waterworks sys-
TEN, the following data are submitted:
The hydrant rental in the United States
ranges from free to S160 per annum,
which gives an average hydrant rate
of from S45 to $40 within the different
sections of the country.
CONDUITS
l The water supply obtained at the
I headworks is to be conducted to the
/ city through main conduit from the
Providencia rancho to the high level
reservoir, a distance of 1-S miles, with
a difference of elevation between both
places of % feet, which, for the guam
| tity of water necessary to be conducted
away from this place, will require main
conduit of 5 feet in diameter. This
conduit is designed to be built preferably
of concrete, strongly constructed, with
all necessary appliances for cleaning,
wasting, and special arrangements for
conducting the water through the Gre
vases or beyond breaks so as not to
interrupt the main supply to the city.
( This main conduit will skirt the toe of
the Cahuenga mountains, will be at ali
times whenever practicable, a subterran-
! can structure, and enter the high level
reservoir through short tunnel at an
elevation of 4SO feet above sea level ap-
proximately 1900 feet north of the pres
ent Buena Vista street reservoir.
The water supply to be obtained at the
headworks to be located at Crystal
Springs. is designed TO be carried by
means of a 44-inch steel pipe conduit to
the present Buena Vista street reservoir.
Its length is approximately five miles,
and the present branch conduit leading
to the Bellevue reservoir is of size
and form adapted to be Incorporated
into this system for the purpose of sup
plying that reservoir.
The length OF all main conduits reach
ing from the headworl.s o the reser-cirs
is approximately 1884 miles. The length
of infiltration galleries, inclusive of lat
erals, is 81 miles; the length of mains
auxiliary to the reservoirs and power
plant. is approximately IL miles, and
the city distribution pipe system is 1910
miles, making a total of 516.73 miles of
conduits and pipes, and necessitating
for the laying of the pipes and the exca-
vations of the reservoirs total excava-
ton of 1,121. .420 cubic yards of earth. The
cast-iron pipe, fittings and specials
needed for the system, will have a total
weight of a. 100 tons
Provision has been made to establish
a telephone line making a complete cir
cult from the central power plant along
the different main conduits to each res
ervoir.
Present requirements will necessitate
the construction and operation of the
plants at the two sources Of supply, the
main eonduits leading therefrom, and
the entire system of reservoirs and power
plant; while of the 1919 miles of city
pipe system, the present requirement
is 339 miles of mains, and the balance of
1881 miles, mostly of the smaller kinde
could be added to the system by yearly
enlargements.
ESTIMATES
In presenting to you an estimate for
the system, advantage has been taken
of the remarkably low prices at present
prevailing in the market. especially on
caSt-iron pipe. The estimate does not
include the cost of right of way, water
rights, sites for headworks on the Pom
eroy e Hooker tract etc, but in all
other respects a liberal allowance for
labor cost of material for the best of its
kind, for careful inspection during the
time of construction and a liberal rate
of profit to the eventual contractors has
been observed in computing the esti-
mates so as to insure for this price con-
scientiously built works, made from the
very best material and in efficiency Sec
ond to none in the United States.
The estimate also includes the liberal
purchase sum for those features of the
present waterworks plant as are incor.
porated within this system, including
needed enlargements thereto. At all
events, these features could be construct
ed and built anew in conformity with
the general plans for the sums estimated
TO recapitulate the requirements for
the entire system and to give an ap-
proximate estimate of its cost, we have:
First-Upper headworks at Provi-
dencia rancho consisting OF inhl-
tration galleries. lateral feeders
TO gallery and gate house..........S 9i42G
Second-Headworks at second
source of supply(Crystal Springs 81 800
Thrd-Main conduit from upper
headworks 10 high level reser-
houses, etc...:...................... 2o1 500
EOurtl-Steel pine conduit from
Crystal Springs 10 reservoir and
yue avenue reservoiT":.......:.. ..'',' 1925
of reservoirs consist
ing of present Buena Vista street
and Bellevue avenue reservoirs,
the proposed high-level reservoir
and the proposed pump reservoir,
complete with gate houses. valve
chambers and roof covering...... 1s2,ss7
SiXth-ReserVoir pipe connections
and ventura meters rs............... $3.50
Seventh-CeutTal power plant ........ 36. 1e0 |
l1ighth-Cast iron water pipes.... ! .952 53l !
Ninth-Spe valves and hy
Grants -.-.-....-.--...- zzooi- |
laying pipe,
lead, yarn. etc, and backhlling
and r5paving. g............,........... 9s2, 42i |
nections and setting 1000 meters, 1900
plant, etc ............................ ~ 900
Total ACKNOWLEDGEMENTS. .05698s
for ineideatals and engineering
expenses are to be added....... 4O5,ss2
Making a total of..................S4.i6 49,, 100
Or for the estimated population of 241,-
at fy Q4O l. l..