San Antonio daily light. [volume] (San Antonio, Tex.) 1886-1907, 1894-07-23
SEWERAGE.
Continued from Fourth Page.

GDolr way lDUO In0 sewers dJ JOl0IS.
Manholes are to be placed in
most cases. at the intersections of
streets, and at every change of
grade and direction of the sewer,
and at the extreme upper send of
each line of sewer unless flush
tanks are used; these manholes
will afford means of examining the
sewers and removing distractions
in case of stoppage.
In designing system of sewers
it is important to plan and locate
the main sewers, so that the sewer
age may be collected and conveyed
to the point of discharge as
promptly and rapidly as possible.
By so doing the formation of sewer
gases is reduced to a minimum,
as fresh sewage gives off little or
no such gases.
The system of sewerage for which
plans have been made is bounded
as follows:
On the north by Russell Place,
San Pedro Place, Magnolia avenue,
Providence street, Josephine street
and Grayson street.
On the east by New Braunfels
street to Duval street, Pine street
to Dawson street, Monumental
street to Commerce Street and Pal
metto street.
On the south by Arkansas avenue
and s. p. railroad to South Flores
street.
On the west by South Flores
street diagonally to to S. A. & A. P.
r. r. to Salado street, Salado street
to Monterey street, S. A. q A. p. r.
r. to near Fredericksburg road, and
contained abont 5,400 acres.
This territory has been divided
into four districts and are num-
bered l, 2, 3 and 4, on the plan. For
convenience these districts are
divided into sub-districts and are
designated by the letters A to X
inclusive.
1t is intended to collect all the
sewage from the districts Nos. l, 2
and 3, at point in Garden street
near the S. p. r. r., where, as far
as grades are concerned it could be
discharged into the San Antonio
river; but eventually it will need
to be treated, as has been before
spoken of.
From this point in Garden street
the sewage can be taken by CRAWL
ty to near the proposed irrigating
fields, by 52-inch brick sewer I'M
der the railroad to Simpson street,
and then by two lines of sewers, &c
and as inches in diameter on a
grade Of p per 1000. From this
point it will be necessary to pump
the sewage on to the disposal fields.
The 36-inch sewer will be of suffi-
Gent size for many years to come,
and the 46.inch sewer can be 5ailt
when required.
The sewage, which will come
from District No. 4, will be very
small in quantity, and can be dis
charged for some time into the San
Antonio river below the railroad
bridge, but it is so arranged that it
can be taken across the river by an
inverted syphOn, and discharged
into the main sewerage system at
the special manhOle, about $50 feet
south of the railroad.
The San Antonio river, which
runs through nearly the central
portion of the city, is very crooked
and winding, making it necessary
to cross the river several times
with the trunk sewer.
District No. | contains 1913
acres and comprises the central
and northern portions of the sys-
tenn.
The main trunk sewer for this
district is through Garden, Navar-
70, Martin, Taylor, Fifth street and
Avenue "B" to Ninth street,
through Ninth street to and
through River Avenue.
The average depth in Garden
street below Alamo street is 19 feet,
and the size 80 inches in diameter
on a grade of 3 LILO per 1000. An
estimate was made for this trunk
sewer in Garden street on a grade
of | per 1000 with a 46-inch sewer
at an average dept of 10 feet, but
the difference in cost was so slight
that it was deemed best to use the
smaller on a sleeper grade, thus
insuring more speedy removal of
the sewage.
A careful study Of Alamo and
Losoya streets was made, with a
view of using them for the trunk
sewer line and so avoid crossing
the river twice, but it was found
that much heavier cutting would
be encountered besides a longer
distance with less grade, and also