WATER SUPPLY OF CAPE TOWN.

WATER SUPPLY OF CAPE TOWN.

A South African correspondent writes that Cape Town contemplates a large extension to its system of water supply. R. O. Wynne-Roberts. the engineer of the city’s municipal waterworks, has reported on two possible sources for the needed increase of water. His choice has fallen on the Berg River Hock watershed, which has an area of about thirty square miles. The mean annual rainfall on this area, as about sixty-four inches. As can at present be ascertained so far, it is proposed to construct a reservoir capable of impounding about 10,000,000,000 gallons of water by means of a concrete dam about 100 feet high above the valley bottom and 652 yards in length. From this dam a forty inch steel main, seventeen and one fifth miles in length, will connect with a balancing reservoir at Mulder’s Vlie, capable of holding 20,000,000 gallons. From this reservoir the water will be taken through a thirty-inch steel main 23.21 miles long to a service reservoir to be constructed at Groot Schuur, which in turn will be connected up by four and one half miles of thirty-inch pipe with the existing Molteno reservoir, in all, the aqueduct will be 45.57 miles in length. The total cost of the undertaking, it is estimated, will be nearly $8,500,000.

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