| 翻訳と辞書 |
Cotter Dam
The Cotter Dam is a concrete gravity and rockfill embankment dam across the Cotter River, located in the Australian Capital Territory, Australia. The impounded reservoir is called the Cotter Reservoir which is a supply source of potable water for the city of Canberra and its environs.
==Original dam completed in 1912==
The original concrete gravity Cotter Dam was built in 1912 when the city of Canberra was established. The height of the dam wall was raised to a height of in 1951 in order to increase capacity of the reservoir. The dam wall was long and created a reservoir with a surface area of . The uncontrolled spillway was capable of discharging . At that time, the top water level of the dam was above sea level and the reservoir had a capacity of .〔 A subsequent review in October 2006, using more accurate mapping methods, resulted in capacity being re-estimated downwards from the previous estimate of . Additional galleries and drains were constructed between 1984 and 1986. In order to supply the city with potable water, water from the reservoir was pumped to Mount Stromlo, and from there the water flowed by gravity to fill the city's reservoirs.
The dam water quality had deteriorated compared with Bendora and Corin dams and the dam was only used when water is in short supply. However, in December 2004, ACTEW Corporation brought the dam back on line in response to the ongoing drought.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Cotter Dam」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|