The herald. [volume] (New Orleans, La.) 1905-1953, 1912-01-18

grade of the pipes, also the size of the
same.
The 12-inch pipe on Pelican avenue
between Seguin and Bermuda streets,
you will notice, has to carry off all the
water from three or four blocks, as
the natural drainage in the cutters is
from the river towards this intersec-
ton. This pipe is entirely too small
for this purpose. You will also notice
that the pipes on the opposite side of
the street, or towards AliX street, will
receive comparatively little drainage
water, as the natural slope of the gut
tiers is from and not towards this drain
pipe. So little water reaches this pipe
during ordinary weather that it be-
comes clogged with silt frequently.
The drainage on the river side of
Pelican avenue, or the side next Della
ronde street, might be slightly improv-
ed by constructing a cross pipe on Sc
gum street at Pelican avenue, to allow
the water to flow from one side to the
other, and utilize both Pinch pipes in
draining the water to Bermuda street,
where it flows into the Eliza street ca
nal through a 24-inch pipe; but, the
combined capacity of these pipes is so
very much too small to properly carry
off the water which reaches them, the
improvement, by constructing this
cross pipe, would not be perceptible.
You will also notice that these drain
pipes are not laid to uniform grade
and that the grade of the bottom of
the outfall on Bermuda street, which
the pipe lines on Pelican avenue flow
into, is higher than the grade on Peli.
can avenue.
/ also enclose you blue print show
ing, in dotted lines, the general plan
of sub-surface drainage in the vicinity
of Pelican avenue and Seguin street,
which it is proposed to construct. This
plan also shows, in full lines, the sub
surface drainage constructed on Peli-
can avenue and Bermuda street, which
drains into the Eliza street canal.
The only proper solution of the de-
fective drainage at Pelican avenue and
Seguin street would be to construct
the drain pipes as shown on this plan
on Seguin between Pelican avenue and
Eliza street
| might state that this sub-surface
drainage work was not designed, or
the installation supervised, by the
drainage department of the Sewerage
and Water Board, as it is at the pres
ent time.
Regarding the removal of trash
from the streets which accumulates
around the intakes into the drainage
pipes and canals:
1t is the place of the Sewerage and
Water Board to clean the catch basins
or intakes of such trash, but it is the
work of the Commissioner Of Public
Works to remove the same off the
streets after the intakes have been
cleaned.
The question of keeping catch ba-
sins from becoming cnoked during
rain is quite difficult one. So far as
my experience goes, the best results
have been obtained by endeavoring to
construct a catch basin or intake in
such a manner that it will hold the
trash off a short time after a rain
commences and after the water in the
gutter rises to an elevation of three
or four inches, will allow all paper
trash, and such matter to flow into
the drain pipe. This has been done
with fairly good results and all graf
ings- for cacth basins which have been
installed within the last four or five
years only become completely chicken
during heavy rain when there is an
exceptionally large quantity of paper
and such trash flooded against the
grating.
During a continued rain, when catch
uooAhS " DcCOmt CuOheu,
this department provides those en-
ployed steadily on maintaining and
cleaning lined and covered canals and
sub-surface drainage, also, the gangs
employed cleaning and repairing the
open and unlined canals with rubber
slickers and boots and they are dis
tributed throughout the whole drain
age system, and, so far as they are
capable, they endeavor to keep I'M
choked the catch basins which have
become clogged with paper and trash.
If you wish to make an appointment
for me to meet you on the ground, 1
could probably explain matters more
thoroughly.
Yours truly,
w. c. KIRKLAND,
| Drsr