No_6_1954 — Page 57

per day during the

the Irish Bridge on Deep Bay Road party completed the work of location gallons by a double box culvert, terracing, and design details in connection with ponding quarter in 1953. channels and roads to the Tsun Wan the feeder road into Sap Pat Heung Health Centre and the construction Valley south of Un Long. Work was of the first part of a feeder road, started on 3rd May with a survey for 1800 ft. long, into the Sap Pat Heung a feeder road on Lantao Island con- Valley south of Un Long.

necting Silver Mine Bay with Pui O, a distance of 3-1 2 miles.

Production for the quarter at the two quarries was as follows: Hok Un (Mainland) 26,553 tons Crushed Stone and 6,989 tons Bitumen Maca- dam; and at Tsat Tze Mui (Island) 26,010 tons Crushed Stone and 6,288 tons Bitumen Macadam.

A contract was let for the removal of Morrison Hill. Work is estimated to take three years.

The preparation of plans for the 1955 56 street lighting programme involving 110 insufficiently lit and unlit streets was completed. Work on the installation of lamps under the 1953 54 programme was com- pleted and work on the 1954 55 programme was commenced. A total of 343 (128 Island, 215 Mainland) new lamps were brought into opera- tion.

Under the Colonial Development & Welfare Scheme D.1661. the survey

corres-

Repairs to Shing Mun, Mt. Parker and Aberdeen catchwaters were con- tinued. including general overhaul of the aqueducts and the reinstate- ment of foot bridges on the Shing Mun catchwater. The annual clean- Filling to finished levels continued ing of the service reservoirs was at Central Reclamation and Cause- completed. way Bay. The quantities of dumped material were 7.416 cu. yds. at Cen- A total of 9,200 meters were re- tral. 36,428 cu. yds. at Causeway Bay, paired or overhauled. 3,240 cu. yds. at Chai Wan, and 300 cu. yds. at Brickfields.

WATERWORKS OFFICE

The rainfall during the quarter amounted to only 17.858 as against an average of 31.913 inches with the result that the total rainfall up to 30.6.54 was 14.874 inches below aver-

age.

be

The workshop continued to fully occupied and 406 orders were completed in connection with main- tenance of waterworks, and 8 for other Government Departments.

41,726 ft. of new mains were laid

during the quarter, 40,831 accounts for water consumption and 1.568 de- mand notes for deposits to ensure payment for water consumption. were issued.

The total amount of water in storage on 30.6.54 was 2,475.95 million Investigations were carried out gallons as against 3,687.83 million and a report prepared with appro- gallons on 30.6.53, a decrease of ximate estimated costs of developing 1,211,88 million gallons. The consump- the water resources of the rivers tion averaged 30.14 million gallons per Jordan, Swan and Murray in the Nga day as compared with 34.90 million Tau Kok area.

TAI LAM CHUNG WATER SUPPLY SCHEME Extract from the report for the quarter ending 30th June 1954, by Mr. G.B. Gifford !Hull, C.B.E., M.L.C.E., Chief Resident Engineer,

Headworks

was tested with a 12-1 2 Ton load. tion has been started and here again The test was satisfactory.

As soon as power was available at the crushers they were run light in accordance with the maker's recom- mendations and it was found that oll leaked from the bearings. In spite of remedial measures being applied. I have decided to run the crushers light all day for a week or two and measure the oil losses etc. It is pos- sible that the bearings may get "run in" and an improvement result.

the quality of the work is very good.

soil testing and other exploratory work has been done at this site, as well as at the sites of the sub-dams 1. 2 and 3 and the results have been The drawings of the earth dams are sent to the Consulting Engineers.

expected shortly.

Shipment of the Parker plant has been further extended and we are Reference was made in my report That part of the cut-off trench for now told by the Crown Agents that for the Quarter ending December the extension of the dam across the delivery cx U.K. will not be made till 31st 1953 to a proposal to buy der- valley has been taken down every- late June. Meanwhile, with regret I ricks and other plant from Colombo. where to good rock, and the central have to report that very little pro- Negotiations resulted in the purchase part of it is concreted to ground gress has been made on the con- of the plant from the Colombo level. Work here proceeds steadily. struction of the dam, and that there Municipality. Meanwhile, as the A considerable amount of drilling. can be little improvement until the plant would enable a greater per- conveyor, elevators, etc. are here.

centage of plums to be placed in the dam, which, apart from the ad- vantage of lower cost and increased progress. would improve the heat conditions in the concrete. the En- gineers decided that the contraction joints in the Class C mass could be omitted up to level 150.

This gave

Meanwhile, surveys have been made prospects of a further increase in and contract documents prepared for construction speed and plans were the construction of an access road prepared for derrick siting and to the dams up the So Kun Wat Val- ranges. The schedule based on the ley. new type of construction showed that It was just possible to complete the dam to 150 in the Contract time.

Since my last report a Contract But this hope was suddenly shatter was let to The Paul Y. Construction ed by information from Colombo Co. for the construction of the Treat- that the Ceylon Government refused ment Works and work started in May. to allow the plant to be exported. It Quite good progress has been made now appears that we must abandon to date. the site excavation now be- hope of effecting the improved pro- ing about 90% complete. gress, and revert to the original scheme. now seriously delaved due to the late, or non-delivery of some of the Parker plant.

When the

conveyor is installed tests will be made to determine the grading of the product and its out- put at 3" 2-1 2′′ jaw openings. This cannot be done now as there is no way of removing the product from below the crushers, except by the belt.

The bin structure arrived in May but no

accompanying drawings ar- rived until June and that part of the bin structure which is required is now being erected.

Supply Works:-

Following the Government decision to widen the Castle Peak Road from Lai Chi Kok gap to Tsun Wan Police Station, the 48 pipe line has been finally located and will be laid in one of the verges. Drawings have been sent to the Consulting Engineers and the balance of the order for the

Meanwhile, work has proceeded steadily but at a slow pace, on the The erection of the Cableway was dam, and over 16,000 cu. yds. of con- finished in April and when the erec- crete has been placed. The quality tor for the Igranic Co., the makers of the work is very good. The piles can now be placed. It is hoped of the electrical gear. arrived, this masonry facing on the downstream that construction can commence be- work was done, and the Cableway side of the dam in the spillway sec- fore mid-1955.

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