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The Rangitata Diversion Race or RDR is a combined irrigation and power generation scheme that diverts water from the Rangitata River to irrigate over 66,000 hectares of farmland in Mid-Canterbury, New Zealand. The RDR project was the first major river diversion in New Zealand, and the largest irrigation scheme in the country.
Main article: Central Plains Water This is a timeline of the Central Plains Water Enhancement Scheme. The Central Plains Water Enhancement Scheme is a proposed water diversion, damming and water reticulation and irrigation scheme for the Canterbury Plains of New Zealand. 1999 – Beginning 26 April – the Christchurch City Council adopts the 1999 Annual Plan. The plan budgeted $150,000 for a ...
Walls for Water: Pioneer Dam Building in New Zealand. Palmerston North: The Dunmore Press Ltd. ISBN 0-86469-313-3 . Retired civil engineer and dam inspector examines the development of New Zealand dam construction techniques and uses from the 1860s to the 1950s for municipal water supply, mining, kauri logging and development of the Lake ...
Lake Onslow is a man-made lake east of Roxburgh and south of Alexandra in the Otago region of New Zealand. It lies 700 m (2,300 ft) above sea level. It was formed in 1890 by the damming of the Teviot River and Dismal Swamp, with a new dam built in 1982 that raised the lake level by 5 m (16 ft).
Water pollution in New Zealand is an increasing concern for those who use and care for waterways and for New Zealand regulatory bodies. [1] An increase in population is linked to an increase in water pollution , due to a range of causes such as rural land use, industrial use and urban development. [ 2 ]
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Examples are: The old Sardar canal project in the state of Gujarat, India, was designed with an irrigation intensity of 32%, but at the upstream part the delivery was at an intensity of 42% (i.e. 131% of the design norm) and at the downstream end it was only 19% (i.e. 59% of the norm), although the project aimed at protective irrigation with ...
The use of sprinkler irrigation and micro-irrigation systems decreases the risk of waterlogging and erosion. [34] Where practicable, using treated wastewater makes more water available to other users [ 34 ] Maintaining flood flows downstream of the dams can ensure that an adequate area is flooded each year, supporting, amongst other objectives ...