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185
The completed works comprise the improvement of the river Graveney completed
in January, 1923 (cost, approximately £200,000), the Wandle Valley sewer
(first portion) completed in January, 1924 (£175,000), Charlton storm relief sewer
completed in March, 1924 (£150,000) and the north-eastern storm relief sewer completed
in September, 1924 (£750,000). Further particulars of these works are given
in previous Annual Reports. Details of the schemes which were completed during
the year under review or were still in hand at the end thereof are given below.
Flood relief
works at
Hammersmith.
The relief scheme for the low-level area in west London of about 2,500 acres in
Fulham, Kensington and Hammersmith provides for the construction of a sewer
about a mile in length having an outlet to the Thames near Hammersmith Bridge
and the erection of a new pumping station near the outlet. The sewer has been
completed and at the end of 1925 practically the whole of the machinery at the
pumping station had been delivered and erected, and the station was nearing
completion.
Abbey Mills
pumping
station
enlargement.
The enlargement of Abbey Mills pumping station involves alterations in the
Worthington engine house at the station, the installation of new pumping plant
there, and the provision of additional boilers in one of the boiler houses and of
supplementary plant. At the end of 1925 the whole of this work with the exception
of the pipe work was practically completed.
Isle of Hogs
pumping
station enlargement.
In addition to the pumping carried out at Abbey Mills pumping station in
connection with the drainage of the low-lying areas in Poplar and the Isle of Dogs,
storm water from these areas is pumped direct into the Thames at the Isle of Dogs
pumping station and the general flood relief scheme of 1919 provides for the enlargement
of this station and the substitution of gas for steam power. At the end of the
year the enlargement of the station was nearly completed, the engines and pumps
for the supply of which tenders had been accepted being still to be provided.
Southwestern
storm relief
sewer.
The south-western storm relief sewer has been designed to assist the drainage
of Clapham, Streatham, Brixton, West Norwood and Dulwich. If required the
sewer can be extended southward to relieve the Effra Branch sewer at West Norwood.
The length from Effra Road to Nine Elms is 23/8 miles, and in order to expedite the
work it was made the subject of two contracts—(i.) between Effra Road and Clapham
Road, completed in February, 1924; and (ii.) from Clapham Road to the Thames,
begun in March, 1923, and still in progress.
Storm relief
sewers in
Lewisham
and
Woolwich.
The scheme of relief sewers in Lewisham and Woolwich is described in the
Annual Report for 1923 (vol. III., p. 128). The construction of the Lewisham
branch sewer (Bell-green, Lower Sydenham, to a junction with the southern highlevel
sewer No. 2 near Court Hill Road, Lewisham), and of a branch sewer from
Catford station had not been completed by the end of the year. Owing to the nature
of the ground encountered in the progress of the work it was decided to carry out the
construction of the Lewisham branch sewer between George-lane and Court-hill Road
in iron instead of brickwork, and to use compressed air in connection with this portion
of the work. The additional estimated cost in this respect is £5,000. The construction
of the Eltham sewer (from the junction of the Council's existing Eltham
sewer and the local sewer in Eltham-road, near Eltham-green, to the southern highlevel
sewer No. 2 at Charlton), was also in progress.
Shad Thames
pumping
station.
Shad Thames pumping station, opened in 1909, was designed to accommodate
six pumping sets, but as a first instalment three only were put in. The flood relief
scheme of 1919 included proposals for completing the equipment of this station.
Considerable progress has been made with the erection of the engines.
Northwestern
storm relief
sewer.
The north-western storm relief sewer will extend from Kilburn to Hammersmith
and has been designed to relieve floodings in Willesden, Paddington and
North Kensington. The works comprise the construction of the principal sewer
which will be connected with the Ranelagh sewer in Shirland-road, Kilburn, and
will run to the nearest point on the Thames, at Hammersmith, connecting with