94
The tunnel was driven at a rate of about 18 metres/week through granite - surprisingly the most serious problems encountered appear to have concerned the labour, rather than the tunnelling itself, on account of fung shui difficulties and the prevalence of malaria.
To finalise the KCR project, an 11.5km-long narrow-gauge (600mm) branch line was constructed in 1911-1912 from Fan Ling to Sha Tau Kok on the border, mainly using track and plant which had been utilized in connection with the building of the Beacon Hill Tunnel, and operated until 1928. The civil engineering work was relatively simple, the deepest cutting and embankments being about 5 metres. For most of the route the railway shared bridges with the adjacent road but beyond Wo Hang some six bridges and numerous culverts needed to be built.
Water Supply
The original inhabitants and new settlers in 1841 obtained their water supply from hillside streams. To augment these sources the first five wells for the city water supply were sunk in 1851. In 1859, the Government realised that the old haphazard supply system was totally inadequate and, following a prize competition for the best plan, implemented a small reservoir scheme in the Pok Fu Lam valley, the dam being little more than a stream intake, from which water was conveyed in 1863 through a 250mm cast-iron pipe to tanks above the city of Victoria.
From that time the history of Hong Kong's waterworks was a continual struggle to catch up with the needs of an ever-increasing population and virtually never succeeded until recent years (when the Territory's water shortfall was imported from China). The original Pok Fu Lam scheme was soon scrapped and a new reservoir, with its 11m-high earth dam and a much greater capacity (300 million litres), was completed further upstream in 1871 when the population had risen to about 125,000. The reconstruction of the supply conduit, by means of a brick culvert along the 150m contour (Pok Fu Lam and Conduit Roads), became operational in 1877.
The first stage of the Tai Tam scheme, the principal feature being a 40m-high masonry-faced rubble concrete dam, was completed in 1889
94
The tunnel was driven at a rate of about 18 metres/week through granite - surprisingly the most serious problems encountered appear to have concerned the labour, rather than the tunnelling itself, on account of fung shui difficulties and the prevalence of malaria.
To finalise the KCR project, an 11.5km-long narrow-gauge (600mm) branch line was constructed in 1911-1912 from Fan Ling to Sha Tau Kok on the border, mainly using track and plant which had been utilized in connection with the building of the Beacon Hill Tunnel, and operated until 1928. The civil engineering work was relatively simple, the deepest cutting and embankments being about 5 metres. For most of the route the railway shared bridges with the adjacent road but beyond Wo Hang some six bridges and numerous culverts needed to be built.
Water Supply
The original inhabitants and new settlers in 1841 obtained their water supply from hillside streams. To augment these sources the first five wells for the city water supply were sunk in 1851. In 1859, the Government realised that the old haphazard supply system was totally inadequate and, following a prize competition for the best plan, implemented a small reservoir scheme in the Pok Fu Lam valley, the dam being little more than a stream intake, from which water was conveyed in 1863 through a 250mm cast-iron pipe to tanks above the city of Victoria.
From that time the history of Hong Kong's waterworks was a continual struggle to catch up with the needs of an ever-increasing population and virtually never succeeded until recent years (when the Territory's water shortfall was imported from China). The original Pok Fu Lam scheme was soon scrapped and a new reservoir, with its 11m- high earth dam and a much greater capacity (300 million litres), was completed further upstream in 1871 when the population had risen to about 125,000. The reconstruction of the supply conduit, by means of a brick culvert along the 150m contour (Pok Fu Lam and Conduit Roads), became operational in 1877.
The first stage of the Tai Tam scheme, the principal feature being a 40m-high masonry-faced rubble concrete dam, was completed in 1889
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