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Water Portal / Rainwater Harvesting / Surface water / Protected side intake

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{{Language-box|english_link= Water Portal / Rainwater Harvesting / Surface water / Protected side intake | french_link= Prise d'eau latérale protégée | spanish_link= Captación de Toma Lateral | hindi_link= वाटर पोर्टल / वर्षाजल संचयन / सतही जल / संरक्षित तटीय जलग्रहण | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=受保护的引水口 | indonesian_link= Asupan Tepi yang Terlindungi | japanese_link= 保護された横取り取水口 }}

 

[[Image:intake icon.png|right|80px]]

[[Image:AriverIntake.png|thumb|right|200px|A river intake on the Sankhulani scheme, shown with Mr. Alizeo (repair team member) and Mr. Utumbe (government water supervisor). Photo: [http://thoughtsfrommalawi.blogspot.com/2009/08/how-it-works.html Thoughts from Malawi blog.]]]

__NOTOC__ <small-title />

A '''protected side intake ''' provides a stable place in the bank of a river or lake, from where water can flow into a channel or enter the suction pipe of a pump. It is built to withstand damage by floods and to minimize problems caused by sediment. Side intakes are sturdy structures, usually made of reinforced concrete, and may have valves or sluices to flush any sediment that might settle. Often, a protected side intake is combined with a weir in the river to keep the water at the required level, a sand trap to let the sand settle, and a spillway to release excess water. The river water may enter the side intake through a screen, and a spillway overflow may be provided. Sometimes, protected side intakes are combined with a dam and a flushing sluice, which allows the upstream part of the river to be flushed.

===Suitable conditions===

— the river or lake water may be polluted.

===CostsManuals, videos, and links===* [ftp://ftp.fao.org/fi/CDrom/FAO_Training/FAO_Training/General/x6708e/x6708e07.htm Main water intake structures.] FAO.

===Manuals, videos, and links===* [ftphttp://ftpwww.faoirc.org/fi/CDrom/FAO_Trainingnl/FAO_Trainingpage/General/x6708e/x6708e07.htm Main 1917 Surface water intake structuresand small dams].] FAOChapter 11. Revised by Nhamo Masanganise.

===Acknowledgements===

* Brikke, François, and Bredero, Maarten. [http://www.washdoc.info/docsearch/title/117705 Linking technology choice with operation and maintenance in the context of community water supply and sanitation: A reference document for planners and project staff] or ([http://www.who.int/water_sanitation_health/hygiene/om/wsh9241562153/en/ alternative link]). World Health Organization and IRC Water and Sanitation Centre. Geneva, Switzerland 2003.

* CARE Nederland, Desk Study: [[Resilient WASH systems in drought-prone areas]]. October 2010.

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