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The new conduit, including the south wall of the filter beds, was completed from the gauge basin to the service reservoir, the floors of the inlet wells near the service reservoir were lowered, and portions of the service and washout pipes were relaid.
Some slight damage was caused to a portion of the south wall of the filter beds by a landslip which occurred during the heavy rainstorm of the 14th September. This damage was repaired and a face-wall is in course of construction for the protection of the bank.
84. Kowloon Waterworks, Gravitation Scheme.-The works in progress during the year comprised the Storage Reservoir, Filter Beds, Catchwater and Distribution Works. Though still incomplete, the new works afforded an ample supply of water throughout the year for the inhabitants of Kowloon Peninsula.
(i.) Storage Reservoir.-Very poor progress was made with this Contract. The height of the main dam was increased by 9 feet during the year bringing it up to 427 feet above Ordnance Datum or 21 feet below overflow level. The following are the quantities of material used in its construction during the year :-
Cement Concrete,
Rubble Masonry Facework, Ashlar
""
3,900 cubic yards.
200
""
3,000
feet.
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The concrete foundation for the Byewash Dam was completed up to ground level, and the side walls of the Byewash Channel were under construction over a length of about 200 feet.
(ii.) Filter Beds.-The meters and pipes for the filter beds arrived during the year but not in time to admit of the completion of this section of the work. The pipes were however fixed and the filtering materials placed in the beds, only the fixing of the meters and building of the meter house remaining to be done.
(iii.) Catchwater.-This work would have been completed during the year, had it not been for landslips which were caused by heavy rainstorms. The first of these occurred in May and brought down a mass of rock, earth and boulders amounting to about 2,500 cubic yards which completely blocked the Catchwater at 9,500 feet.
In September another rainstorm following a typhoon caused slips of earth amounting to 3,000 cubic yards which blocked the Catchwater in two places. As the result of these landslips it was considered advisable to build some additional side walls and to construct another overflow and these works were proceeded with.
At the end of the year, the construction of the Recorder House, fixing of Recorder, completion of the new overflow and a small amount of walling below the Catch water were the only works remaining to be done in connection with this portion of the work.
(iv.) Distribution Works. Considerable progress was made with this section of work. On the west side of the Peninsula the supply was extended to Tai Kok Tsui, Fuk Tsun Heung and Sham Shui Po, whilst additional mains were laid in Yaumati and Mong Kok Tsui. At Kowloon Point, the 4" main in Austin and Macdonnell Roads was replaced by a 7" from Station Street South to Chater Road, the Robinson Road main was extended to the Praya and the 4" main in Salisbury Road completed. On the east side of the Peninsula. the supply was extended to To Kwa Wan, whilst Kowloon City was supplied by laying a main along the old boundary line. Fire hydrants were fixed on all the old mains.
The above included the laying of :—
2,900 feet 7" cast iron pipes.
6"
8,300, 1,900 5"
>>
14,000 4"
2)
11
700
3"
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Fire hydrants to the number of 109, and 65 street fountains were fixed.