Los Angeles daily herald., 1889-08-03
THE SEWER PLANS.
usngineer Eat0n,s Defense OF the
system ne has Devised.

n Oh w IIs Il AhRtbs
uzngsneer Eatom,s Defense of the
system ne has Devised.
EprroRs HERALD-The time being near
st hand for the voters of this city to de-
eide whether they will sanction the pro-
posed expenditure for sewer construc-
tion, as set forth in Ordinance No. 227, l
deem it proper at this time to make an
explanation of the plan on which con-
structien has finally been determined,
and will endeavor to present the mat
ter clearly, without entering into tiresome
engineering details.
A brief description of the sewers and
their purposes will be first given, 80 that
when speaking of them later on, it will
be understood to what reference is made.
The sewers to be built un3er the issu-
ance of bonds are what are usually
termed the main drainage works, and
ara classified as follows: Intersecting
sewers and outfall sewers, for sewage
alone without any rain water, and storm
vater sewers for storm water alone, and
combined sewers which, in some cases.
during storms, take also some sew
age. The latter sewers, during
storms, discharge into the river.
The outfall is the trunk into which the
sewage of the entire city is collected by
means of the three interceptiDg sewers
and their branches. Itextends from the
intersection of Grand avenue and Jeffer-
son street to the Pacific ocean at
Ballona. At its initial point the south
ern and central intercepting sewers dis
charge into it. From this point the
southern interceptor leads off in an
easterly direction along and near the
southern boundary of the city. This
sewer receives and conveys to the out
fall sewer all of the sewage produced
within the area between the southern
boundary of the city and the central in
tercepting sewer.
The central interceptor extends from
its junction with the outfall in north
easterly direction, to Sixth street, where
it crosses to the east side of the river
thence northerly to the Arroyo Seco.
This sewer collects and conveys to the
outfall sewer all the sewage produced
within the portion of the city lying north
and east of it, including the larger por-
ton of Boyle Heights, and all of the city
north and west of it, up to the Western
divide, or shed line of the Arroyo de los
Reves.
The western intercepting sewer
branches from the outfall sewer at the
intersection of Wesley avenue and Jeffer-
son street and follows the western boun-
dary Of the city in q northerly direction
to Temple street. The sewer collects
and conveys to the outfall all the sewage
produced within that portion of the city
lying north and east of it and up to the
western divide or shed line of the Arroyo
de los Reyes.
The sewage from these drainage areas
or districts will be collected into theil
respective intercepting sewers by branch
or lateral sewers leading from then
through the streets and to which the
house drains are connected.
The other sewers mentioned will also
be provided with spurs or openings fol
connecting house drains.
All the above named sewers belong tt
the class termed separate, that is they
receive only the house waste.
The combined sewers receive botf
sewage and storm water and are those
mentioned in Ordinance No. 227 as tine
Flower and Ninth streets, the Beaudry
street, Alameda street, Hollenbeci
ravine, Michigan street, Mozart stree
and Thomas street.
The reasons will be given further ol
for combining in those portions of tn
city, drained by the aforementioned
sewers.
The storm-water sewers receive onll
the surface or rain-water. The ElysiaI
hills sewer intercepts the storm-wate
that rushes down into Alameda street a
the Capitol Mills, and carries it into thu
river at Mission street. This will reliev,
the great inconvenience to traffic tina
every rain has heretofore occasioned OIL
Alameda street and all streets intersect
ing it.
The Arroyo de los Pesos storm sewer j
calculated to divert the waters from tn
large watershed in the northeast corne
of the city, which concentrates at Ais,
street. The distance from this diversion
point to the river is short. and the benef
derived from it will be fully appreciates
river is extended.
The foregoing is merely genera
description of the whole plan, and sucl
portions of it as may be of special interes
will be referred to in detail at the latte
end of this explanation.
The great interest that has been mani
tested in, and the constant discussion b,
the press of sewage matters, induces m,
to give brief review of what has beef
done and what is now proposed to do il
order to give permanent and eficien
sewerage system to Los Angeles.
1 will, therefore, begin at the period
about three years since, when l frs
entered seriously into the investigation
of sewerage system for Los Angeles.
In designing sewer system, the frs
thing in order, after Typographical ma
of the area to be drained has been made
is to determine by what means the sew
age shall be disposed of. A careful stud.
of the Typographical map of our city
shows that the southwest corner is tht
most desirable location, both from ar
engineering and economic standpoint, Al
which the sewage of the whole city
within the corporate limits should be
collected. To be certain on this point
Mr.. G. G. Waring, recognized expert
on sewer matters, was engaged by
the city to lock the ground over
with respect to this and the disposal oi
the sewage as we'll. Mr.. Waring looked
over the grounds and made preliminary
surveys of the Ballona and Inglewood
routes and the country in the vicinity OF
the present outfall and the Los Angeles
river. The gentleman reported that the
southwest corner was properly selected
as the outlet for the entire sewage of the
city, and that the ocean, being within
easy reach, offered superior advantages
for DISPOSAL in connection with irriga.