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Orange–Fish River Tunnel
The Orange–Fish Tunnel is an irrigation tunnel in central South Africa.
== Purpose ==
For many years, large areas in the Eastern Cape experienced severe water shortages because of little rainfall in the arid Karoo. The situation was aggravated by the reduction in capacity of many of the existing dams due to heavy silt deposits.
The Orange-Fish Tunnel, together with its network of canals, weirs and balancing dams, has enabled these areas to be restored and has made the irrigation of thousands of hectares of additional land possible. The main purpose of the tunnel is to divert water from the Gariep Dam to the Eastern Cape for irrigation, household and industrial use.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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