Works carried out and charge-able to Loan Funds.
Q 116
At the Kowloon end of the pipe an automatic Slow closing valve, Venturi meter and Recorder, a 6" washout valve, a 12″ stop valve and an air cock were fixed.
At the Hong Kong end an air cock, Reflux valve, Full flow washout valve and 12" stop valve were fixed and the pipe was connected temporarily to the City mains in Queen's Road Central.
The total length of the pipe line from the sea wall at Kowloon to the sea wall at Hong Kong was 5914 lineal feet.
The contractors for laying the pipe line were the Netherlands Harbour Works Co. Hong Kong.
The materials were supplied through the Crown Agents by Messrs. Stewarts and Lloyds.
Expenditure for 1930 $52,228.78 Expenditure to 31.12.30 $229,260.98
(1) Tunnels and South Conduit.--No expenditure in the year under review.
(m) Miscellaneous. Various trial pits were sunk in connection with foundation work.
Expenditure for 1930 $1,392.62 Expenditure up to 31.12.30 $1,492.62
(n) Service Reservoir Shek Lai Pui-This work was referred to in paragraph 283 (d) of last year's Report. Fair progress was made with the concrete work to the Eastern half of the reservoir and this half was completed by the end of April, but owing to very poor progress on the construction of the inlet and outlet control valve houses, this half of the reservoir was not brought into operation until the end of July.
Progress on the Western half of the reservoir which at first proceeded well, was very much impeded by the slowness of the excavation a good deal of which was in rock and it was not until the end of the year that the concrete work of this half was completed.
The reservoir which is fed by the Shing Mun Rapid Gravity Filters has a capacity of 11,416 million gallons at a top water level of 443.00 O.D. the average depth of water when full being 18′0″. A gravity section division wall 12′0″ high divides the reservoir into two compartments the capacity of the Eastern compartment being 3.649 million gallons and the Western compartment 3.855 million gallons. The inlet conduit from the filters discharges into an octagonal wet well from which two conduits controlled by wooden sluice gates, discharge the water into either half of the service reservoir. Provision has been made for a second inlet conduit from a future set of filters.