DIVERSION RACE
AVOIDANCE OF DANGEROUS SLIP. HUGE PIPES PROPOSED. (By Telegraph—Press Association.) ASHBURTON. July 19. Slipping country on the Surrey Hills has necessitated changing the course of the Rangitata diversion race for a mile and a half. A slip on the property of Mr A. N. Grigg, M.P., contains a quarter of a million yards and is moving at the rate of an inch a day. Yesterday the Minister of Public Works, Mr Semple, authorised a plan whereby, from a safe distance from the slip, the water will drop through pipes to country 100 yards below the level of the abandoned race and, under a 13-foot head, be forced up to the hillside race beyond the danger point. The pipes will be the largest in the Southern Hemisphere, having an inside diameter of 12 feet. The shell, in which probably one-inch steel reinforcements will be used, will have a thickness of ten inches. The department proposes to make the pipes at Surrey Hills. Each tenfoot section will weigh 23 tons. The change of plans will not delay completion of the diversion. The Minister announced that the Lake Tekapo storage development and hydrqj-electric power scheme would be begun in three or four months.
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Wairarapa Times-Age, 20 July 1939, Page 2
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202DIVERSION RACE Wairarapa Times-Age, 20 July 1939, Page 2
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