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２０２３年１１月１６日 ルワンダのニャバロンゴ川多目的ダム，２万ヘクタール以上の灌漑
ルワンダに対する印象，丘陵地帯の国で水辺はあるものの，疫病の源で近寄り難い，そのため住民は丘の上に散開して住んでおり，水を汲むために，毎日山から下りてきてバケツで山の上に運ぶ，これが女性の仕事で重労働だ，中国が入ってきてダム建設を始めているが，その借款はどうなるのか，
今日のアフリカ紙の記事では，首都キガリのすぐ西を走るニャバロンゴ川（River Nyabarongo ）のダム開発を取り上げている，主目的は灌漑と飲料水だろうが，中国の輸出入銀行が約２億ドルの低利の借款を供与することで，ニャバロンゴ川多目的ダムの建設に着手，（
https://onl.sc/xKVWjNd）
２０２０年２月，ルワンダ政府と中国政府は合意書に署名，ニャバロンゴ第２ダム（Nyabarongo II Hydropower Plant）建設で合意，ルワンダは，中国がアフリカに進出する中で，重要なパートナー国の一つ，中国はルワンダに対して，経済的な援助や投資を行っている，ルワンダは対中関係を重視，
ルワンダのニャバロンゴ川多目的ダム，２万ヘクタール以上の灌漑
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２０２３年１１月１４日欄に収容
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ルワンダのニャバロンゴ川多目的ダム，２万ヘクタール以上の灌漑
資料
ルワンダのニャバロンゴ川多目的ダム，２万ヘクタール以上の灌漑
A231114 allAfrica.com https://onl.sc/xKVWjNd
Rwanda: River Nyabarongo Multipurpose Dam to Irrigate Over 20000 Hectares of Crops
... Hydropower Plant. The project will build a 43.5 MW hydropower plant and irrigate 20,000 hectares of land, increasing fishing and tourism activities.
ルワンダのニャバロンゴ川多目的ダム，２万ヘクタール以上の灌漑
Rwanda: River Nyabarongo Multipurpose Dam to Irrigate Over 20,000 He
ctares of Crops
The anticipated multipurpose dam along River Nyabarongo will irrigate over 20,000 hectares of crops, The New Times has learnt.
発電と同時に洪水調節も行う
The irrigation is part of a project expected to cater for water supply, irrigation as well as electrical power generation. The project will also mitigate the perpetual flooding downstream of the Nyabarongo River that has proved to be hazardous in recent years.
２０２０年２月，ルワンダ政府と中国政府は合意書に署名，ニャバロンゴ第２ダム建設で合意，中国輸銀が約２億ドル借款を供与
In February 2020, the Government of Rwanda and the People's Republic of China signed a framework agreement that will allow China, through China Exim Bank, to extend a concessional loan worth $214 million that will facilitate the construction of the Nyabarongo II Hydropower Plant.
水力は４万３５００ＫＷ，灌漑は２万ヘクタール，他に漁業や観光
The project will build a 43.5 MW hydropower plant and irrigate 20,000 hectares of land, increasing fishing and tourism activities.
現在工事中のニャバロンゴ第２多目的ダムダム（Nyabarongo II Multipurpose Dam）の位置は，北部及び南部の２州に跨る，
Nyabarongo II Multipurpose Dam under construction is located between the Northern and Southern provinces, specifically between Kamonyi, Gakenke and Rulindo districts.
ダムの高さは５０ｍ，長さ３６３ｍ，貯水容量は約８億トン
The dam will measure 59 metres high and 363 metres long, creating a reservoir with a storage capacity of 803,000,000 cubic metres.
灌漑地域は，ニャバロンゴ川流域の他，アカゲラ川，アカニャル川流域，更に上流域も含む
Jerome Hitayezu, the Head of the Irrigation Programme at Rwanda Agriculture and Animal Resources Development Board (RAB), said the dam will irrigate the land in the valley of Nyabarongo, Akagera, and Akanyaru rivers as well as upstream of lakes Cyohoha and Rweru in Bugesera District.
灌漑目的で長距離の導水路の建設も含まれる
"There will be a long canal of water from the dam in Shyorongi to Bugesera District. Although the dam is being constructed in Shyorongi of Northern Province, a big part to be irrigated is located in Bugesera," he said.
中国企業シノハイドロは，ＥＰＣ契約の他，１１万ボルトの送電線も含む
China's Sinohydro was awarded the engineering, procurement, and construction (EPC) contract for the project. The company is also responsible for the installation of the 110kV transmission line.
現在，詳細設計を待っている段階
"We are waiting for the detailed design. Both rice and sugar cane crops are proposed in the project but it has not yet been confirmed which one will be prioritised. If rice is chosen, there will be redistribution so that farmers are given the land to till," he said.
ルワンダ政府は２０２４年までに全国で約１０万ヘクタールの灌漑計画を持つが，このプロジェクトはその重要な一環である，今年１０月末には，ムブンバ多目的ダム（Muvumba multi-purpose dam）も進める
The Nyabarongo multipurpose dam is a boost as Rwanda targets to irrigate 102,284 ha by 2024. The government, at the end of October this year, also launched the construction of the Muvumba multi-purpose dam, which will cost ?121.5 million (approx. Rwf122b).
頭書の計画では，ムブンバダムは高さ約３０ｍで約７０００ヘクタールの灌漑，他にも１６の池が想定されている，
Initially, the Muvumba dam was supposed to be 30.5 metres high and provide 35 million cubic metres of water for irrigation on 7,380 ha and 16 reservoirs for livestock in Nyagatare District, as well as generate electricity.
However, after reviewing the designs, the capacity of the dam was increased. The hydropower station is expected to generate 6.94 GWh annually, an increase from 5 GW.
The dam was envisaged to supply about 24,000 cubic metres per day of water but after design upgrading, this has increased to 50,000 cubic metres per day to 300,000 people in the areas of Karangazi, Rwimiyaga and Nyagatare, in addition to livestock use.
The command area of the irrigation scheme is estimated to increase from 7,380 hectares to 8,800 hectares covering Tabagwe, Gatunda, Karama, Rukomo, Nyagatare, Rwempasha, Musheri and Rwimiyaga sectors. The project will be complete by 2027 if all goes well.
The mayor of Nyagatare District, Stephen Gasana, said they anticipate a boost in agricultural productivity thanks to the irrigation scheme facilitated by the Muvumba multipurpose dam.
"Currently, we cultivate on 40,000 hectares per season. Our productivity was unpredictable due to insufficient water, but this infrastructure gives us assurance that things are about to change," he mentioned. The dam will have a height of 39 metres and a storage capacity of 55 million cubic metres.
Read the original article on New Times.
Location of Nyabarongo II Power Station
Placement on map is approximate
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Location Shyorongi, Rulindo District, Rwanda
Coordinates 01°52′36″S 29°56′25″E
Construction began April 2021
Opening date December 2025 Expected
Construction cost US$214 million
Owner(s) Rwanda Energy Group
Dam and spillways
Type of dam Gravity dam
Impounds Nyabarongo River
Power Station
Commission date 2025 Expected
Turbines 3 x 14.5 MW
Installed capacity 43.5 MW (58,300 hp)
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