The Sun.
London, England, 1856-04-04 00:00:00

" THE LOW LEVEL SEWER.

" By the low level sewer provision is made for the inter-
ception of the sewage from a district which may eventually
be extended over 22 square miles. This sewer commences
at the High-street, Putney, passes along Wandsworth-
lane, through Wandsworth, and under the Wandle, into
the York-road, through Battersea-fields, along Priory-
road, Lansdowne-road, the Clapham-road, and Holland-
street to the Brixton-road, intercepting in its mine
all the mein sewers near the river Thames, and being
provided with penstocks and storm overflows, by means of
which the currents in these sewers will be placed under
command.

At the junction of the Brixton and Vassall reads the
Effra will be again intercepted, and its present defective
condition in this locality remedied. The lower portion of
the Effra will then be reconstructed of a much smaller size
than at present, with a fall from the river to the low level
sewer, to which it will act as a storm overflow.
"At the junction of the Camberwell and Albany roads
the Earl sewer will be intercepted. From thence the main
line proceeds along the north side of, and under the Grand
Surrey Canal, to the Old Kent-road, where the Peckham
branch of the Earl sewer is intercepted. Thence the low
level sewer proceeds in a direct line across the fields and
market gardens, under the Brighton and North Kent Rail-
ways, to the junction of Giffen-street with High-street,
Deptford. Hero it receives the north branch, and is pro-
, vided with an overflow into the liver at low water. It
then proceeds between the gas and vitriol works, near the
Greenwich Railway, under Deptford Creek, to the pump-
ing station on the banks of the Creek. The total length
of this line, from Putney to Deptford, is about 9 miles
2,550 feet.

" LOW LEVEL OR BERAIONDSEY BRANCH.

"This branch commences at St. James's Church, Rother-
hithe, at which point it forms a connection with, and sup-
plies an outfall to, the Battle-bridge; the Earl, the Great
Saint John, and the Duffield Sewers, and thus completes
the interception of the sewage from the low district. It
passes through private ground into and along the Dept-
ford Lower Road, under the Grand Surrey Canal, along
Evelyn street and High-street, Deptford, where it dis-
charges into the main sewer.

" DEPTFORD PUMPING STATION.

" The pesition selected for the pumping station is a
piece of waste land on the east bank of Deptford Creek,
south of the Greenwich Railway, and neat the Gas and
Vitriol Works, at which point the sewage from the low
level sewer is raised to the high level.
"The invert of the low level sewer will here be about

20i feet below that of the high level and the extension
sewers, and about 30i feet below Trinity high water mark.
Pumps and engines equal to 520 nominal horse power will
be required, and it is proposed to provide duplicate•engines
in cases of accident and repairs. There will be no reser-
voirs, and the engines and pumps will be covered so that
the sewage will not be exposed, and no inconveniences will
arise therefrom.
" RESERVOIR AND ENGINES AT PLUMSTEAD MARSHES.

" In order, finally, to discharge the sewage into the centre
and bottom of the river within from two to four hours
unrest to high water only, it is proposed to construct upon
the banks of the river a covered reservoir capable of con-
taing 4,000,000 cubic feet of sewage, to be raised into it
from the main outfall sewer. The land required for the
reservoir, engine-houses, pumps, &c., would be about 15
acres. The lift being about 21 feet, 657 nominal horse-
power will be required to raise the sewage, arid it is pro-
posed here to provide duplicate engines as at Deptford
Creek.

" =GINN POWZI.
" The total amount of engine power to bo provided will
be about 2,354 nominal horse-power, and the annual cost
of pumping will probably amount to 12,0001. on the aver-
age, or about one-third more than the present cost of
cleansing the tide locked district sewers.
" The effect produced by the Deptford Pumping Station
upon these sewers, would be so beneficial as largely to re-
duce the present annual cost of cleansing them, and thus
to diminish this increased annual expenditure.
"The estimated cost of the works herein recommended
will be as follows :