Английская Википедия:Chaffey Dam
Шаблон:Use Australian EnglishШаблон:Use dmy dates Шаблон:Infobox dam Chaffey Dam is a minor ungated rock fill with clay core embankment dam with an uncontrolled morning glory spillway across the Peel River, located upstream of the city of Tamworth, in the New England region of New South Wales, Australia. The dam's purpose includes flood mitigation, irrigation, water supply, and water conservation.
Location and features
Commenced in August 1976 and completed in September 1979, the Chaffey Dam is a minor dam on the Peel River, a tributary of the Namoi River, approximately Шаблон:Convert north of Nundle and Шаблон:Convert south-east of Tawmorth.[1] Water from the dam is released directly into the Peel River which is used by irrigators downstream of the dam, and for water supply of the city of Tamworth.[2]
The dam wall comprises Шаблон:Convert of rock fill is Шаблон:Convert high and is Шаблон:Convert long. The maximum water depth is Шаблон:Convert and at 100% capacity the dam wall holds back Шаблон:Convert of water at Шаблон:Convert AHD. The surface area of the reservoir is Шаблон:Convert and the catchment area is Шаблон:Convert.
The dam uses an unusual concrete morning glory bell-shaped uncontrolled spillway which is capable of discharging Шаблон:Convert.[2][3][4] The spillway measures Шаблон:Convert in diameter and tapers down to Шаблон:Convert. The spillway tower is Шаблон:Convert high.Шаблон:Citation needed
Chaffey Dam provides valuable public recreation including swimming, sailing, boating and fishing.[2]
Upgrade of facilities
An A$13 million upgrade of Chaffey Dam commenced during 2010 that involved the construction of a Шаблон:Convert auxiliary spillway with release plug, funded by the Government of New South Wales and was completed in early 2011.[5] A second stage A$43.33 million augmentation commenced in 2013, funded by the Australian Government, the NSW Government and Tamworth Regional Council. This augmentation is expected to be completed during 2014 and involves raising the dam wall by Шаблон:Convert and subsequent works to raise the morning glory spillway and bridge deck. These works will increase the full supply level of the dam by Шаблон:Convert, the dam's capacity from Шаблон:Convert to Шаблон:Convert and ensure it can withstand the maximum possible flood. The project also involves a realignment of roads on the western foreshore; the Tamworth-Nundle Road, and River Road.[6]
Etymology
The dam is named in honor of Frank Chaffey,[1] who represented Tamworth in the New South Wales Legislative Assembly between 1913 and 1940, and his son, [[Bill Nye |Bill]],[1] who represented the same seat between 1940 and 1973.
Gallery
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Chaffey Dam as viewed from lookout on Nundle Road, 2008.
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Lower section of wall, April 2018.
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Spillway post upgrade, April 2018.
See also
References
External links
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- Embankment dams
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