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Topic: Opuha Dam

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Dam

List of reservoirs and dams

Shimantan Dam

Mactaquac Dam

Teton Dam

Kelly Barnes Dam

Aswan Dam

Three Gorges Dam

Hoover Dam

Johnstown Flood

Itaipu

Reservoir

Selenga River

Krasnoyarsk

Biodiversity

	Dam - Medbib.com, the modern encyclopedia (Site not responding. Last check: 2007-10-10)
		A diversionary dam is a structure designed to divert all or a portion of the flow of a river from its natural course.
		In a constant-angle dam, also known as a variable radius dam, this subtended angle is kept a constant and the variation in distance between the abutments at various levels are taken care of by varying the radii.
		A steel dam is a type of dam briefly experimented with in around the turn of the 19th-20th century which uses steel plating (at an angle) and load bearing beams as the structure.
	www.medbib.com /Dam (3139 words)

	Dam - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-10)
		The locations where timber dams are most economical to build are those where timber is plentiful, cement is costly or difficult to transport, and either a low head diversion dam is required or longevity is not an issue.
		Oroville Dam is an example of an earth dam, and is the tallest dam in the United States.
		The dam will not overturn provided that the moment around the turning point, caused by the water pressure is smaller than the moment caused by the weight of the dam.
	www.dictionpedia.com /en/Dam (2946 words)

	Dam Summary
		Dams associated with hydroelectric power projects are decommissioned after their useful life and removal is often recommended to return river ecosystems back to their natural state.
		Dams, barriers to alter flowing bodies of water, are among the most ancient and powerful examples of the proclivity of humans to alter nature for their own benefit.
		For most of human history, dams were conceived and built with an eye only to the task to be accomplished, such as water storage, irrigation, or more recently, promotion of tourism, and without much concern for other implications, such as the impact on local populations or the environment.
	www.bookrags.com /Dam (6773 words)

	Dam safety - Department of Building and Housing
		Dam safety has been a concern for a number of years and this has been brought to a head by the Opuha Dam incident in 1997 and flood events of the late 1990s and in 2004.
		Dams sometimes fail and there is the potential for loss of life and property damage resulting from dam failure.
		It is anticipated that, for dams constructed and commissioned after 31 March 2005, the comprehensive nature of provisions of the Building Act 2004 relating to dam safety management may reduce or remove the need for resource consent conditions to be imposed requiring safety assurance programmes.
	www.dbh.govt.nz /bofficials-dam-safety (1593 words)

	Dam - Wikipedia, the free encyclopedia
		Rock-fill dams are resistant to damage from earthquakes.
		Jones Falls Dam, in Canada, is a constant radius dam.
		A cofferdam during the construction of locks at the Montgomery Point Lock and Dam.
	en.wikipedia.org /wiki/Dam (3184 words)

	What We Do (Site not responding. Last check: 2007-10-10)
		Opuha earth dam is 47 m high, with a crest length of approximately 100 m and impounds the Opuha River forming a seasonal water reservoir for irrigation.
		The 14 m deep cylindrical powerhouse embedded at the toe of the dam houses the main generating plant comprising the main inlet butterfly valve, horizontal Francis turbine, generator and control equipment.
		PB Power was engaged as owner's engineer to provide a peer review service during the design, construction and commissioning of the electrical and mechanical works undertaken by the turnkey contractor.
	www.pbpower.net /whatwedo/gen/hydro/odp.htm (140 words)

	* NZine * Letters To NZine - Why I Am Still Concerned About The Collapse Of The Opuha Dam - dam failure, dam collapse, ...
		In my experience, when dams fail in developed countries overseas, there is more or less inevitably an inquiry, but in New Zealand at present, despite a dam's potential to cause such immense damage, this does not seem to be the case.
		Though there was no loss of life at Opuha, this was fortuitous, and farmers in the region have told me that some people only just managed to get out of the way of the rampaging flood in time.
		It is somewhat incidental that in the court action by the Canterbury Regional Council (CRC) against DHL (the contractor), and Christopher Hollingham (DHL's Project Manager), the judge said Hollingham was in a significant position of responsibility for which he had no qualification or experience.
	www.nzine.co.nz /views/alisterhunt.html (665 words)

	Opuha Dam Project (Site not responding. Last check: 2007-10-10)
		Good practice for involvement in a major project, lessons from the Opuha Dam Project
		The purpose of our review was to see what messages for good practice we could find from looking at one such large-scale project.
		While much is known about the circumstances of the breach of the Opuha Dam, the lessons for public authorities that might be involved in such projects have not hitherto been explored.
	www.oag.govt.nz /2001/opuha-dam/default.htm (116 words)

	Beehive.govt.nz - The Opuha Dam Report shows impressive results
		Beehive.govt.nz - The Opuha Dam Report shows impressive results
		Minister of Agriculture, Jim Anderton released the report on the Opuha Dam today, which analyses the impacts of the dam build in 1999 on the provincial economy.
		The study was commissioned and funded while he was Minister of Economic Development, to gauge the productivity gains from irrigation on previously dry land farming.
	www.beehive.govt.nz /ViewDocument.aspx?DocumentID=27196 (544 words)

	Dam information - Search.com
		Regional > North America > United States > Wisconsin > Localities > B > Beaver Dam (18)
		Arts > Movies > Titles > D > Dam Busters, The (8)
		Regional > North America > United States > Kentucky > Localities > B > Beaver Dam (6)
	domainhelp.search.com /reference/Dam (3293 words)

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