P.W.E. Hongkong.
Q 72
additional storage reservoirs, they should be so situated as to derive their supply from additional catchment areas.
As the late Mr. Osbert Chadwick, C.M.G., was on a visit to the Colony during the spring of 1902, for the purpose of reporting on sanitary conditions generally, the question of augmenting the water supply was referred to him. Mr. Chadwick reported in April, 1902, advising that a scheme should be prepared with a view to the full development of the Taitam Valley, down to sea level, and that, meanwhile, one or more low-level reservoirs, with a capacity of at least 400 million gallons, which should be at or near sea level, should be constructed. As the construction of such reservoirs would involve pumping, he further recommended the provision of one pumping engine, capable of raising and delivering into the Taitam funnel 14 million gallons daily, and the laying of a rising main, 15" in diameter, from the pumping station, which was to be located on the shore of Taitam Bay, to the entrance to the Taitam tunnel.
Steps were taken, as early as possible, to prepare a scheme in accordance with Mr. Chadwick's recommendations, but, as it became obvious that the necessary investigations required for the preparation of a complete scheme would occupy much time, it was decided to obtain and install temporary pumping plant capable of raising half-a-million gallons per day. This plant was installed immediately below the junction of the three principal branch valleys, a small dam to intercept the dry-weather flow of the streams being constructed and a rising main, 1.4 miles long, extending to the entrance to the Taitam tunnel, being laid with such pipes as were available. It started working on the 1st November, 1903, and proved exceedingly useful, being ultimately dismantled and removed in November, 1915.
Two dams, fitted with gauges and self-recording apparatus for registering the discharge of the main stream in the lower part of the valley, were also constructed.
The sum expended in preliminary works, surveys, borings, well-sinking, temporary pumping plant, gauges and recording apparatus amounted to $142,025.
As the result of investigations, it was decided that it would be inexpedient to proceed in the first instance with the construction of a dam at or near sea-level, but a suitable site further up the valley was selected, the remainder of the works, which were designated "Taitam Tuk Scheme-First Section", being designed in accordance with Mr. Chadwick's recommendations. Proposals for the carrying out of these works were submitted to the Secretary of State for the Colonies in October 1903 and approval was received by telegram on the 1st January, 1904. A Contract for the construction of the dam and contingent works was entered into on the 16th March, 1904, the whole of the works being completed in 1908 at a cost of $896,140. The scheme included the following:-
P.W.E. Hongkong.
Q 72
additional storage reservoirs, they should be so situated as to derive their supply froin additional catchment areas.
As the late Mr. Osbert Chadwick, C,M.G., was on a visit to the Colony during the spring of 1902, for the purpose of reporting on sanitary conditions generally, the question of augmenting the water supply was referred to him. Mr. Chadwick reported in April, 1902, advising that a scheme should be prepared with a view to the full development of the Taitam Valley, down to sea level, and that, meanwhile, one or more low-level reservoirs, with a capacity of at least 400 million gallons, which should be at or near sea level, should be constructed. As the construction of such reservoirs would involve pumping, he further recommended the provision of one pumping engine, capable of raising and delivering into the Taitam funnel 14 million gallons daily, and the laying of a rising main, 15" in diameter, from the pumping station, which was to be located on the shore of Taitam Bay, to the entrance to the Taitam tunnel.
Steps were taken, as early as possible, to prepare a scheme in accordance with Mr. Chadwick's recommendations, but, as it became obvious that the necessary investigations required for the preparation of a complete scheme would occupy much time, it was decided to obtain and instal temporary pumping plant capable of raising half-a-million gallons per day. This plant was installed immediately below the junction of the three principal branch valleys. a small dam to intercept the dry-weather flow of the streams being constructed and a rising main, 14 miles long, extending to the en- trance to the Taitam tunnel, being laid with such pipes as were available. It started working on the 1st November, 1903, and proved exceedingly useful, being ultimately dismantled and removed in November, 1915.
Two dams, fitted with gauges and self-recording apparatus for registering the discharge of the main stream in the lower part of the valley, were also constructed.
The sum expended in preliminary works, surveys, borings. well-sinking, temporary pumping plant, gauges and recording apparatus amounted to $142,025.
As the result of investigations, it was decided that it would be inexpedient to proceed in the first instance with the construction of a damn at or near sea-level, but a suitable site further up the valley was selected, the remainder of the works, which were designated "Taitam Tuk Scheme-First Section", being designed in accord- ance with Mr. Chadwick's recommendations. Proposals for the carrying out of these works were submitted to the Secretary of State for the Colonies in October 1903 and approval was received by telegram on the 1st January, 1904. A Contract for the con- struction of the dam and contingent works was entered into on the 16th March, 1904, the whole of the works being completed in 1908 at a cost of $896,140. The scheme included the following :-
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