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Water Portal / Rainwater Harvesting / Groundwater recharge / Check dams (gully plugs)

810 bytes added, 16:32, 19 April 2012
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==Construction, operations and maintenance==
[[Image:CementCheckDam.jpg|thumb|right|300px|Drawing: [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFkQFjAB&url=http%3A%2F%2Fwww.saiplatform.org%2Fuploads%2FModules%2FLibrary%2FSAI%2520Technical%2520Brief%25205%2520%2520The%2520Importance%2520of%2520Soil%2520to%2520Water%2520Use.pdf&ei=gf91T6GYJ-jWiAK7zuGnDg&usg=AFQjCNFDyR4mjTVCcvvTt-9v4OrxAZQfDA&sig2=iMzgbW0eK395na_V_YA4Kw ''Water Conservation Technical Briefs''.] SAI.]][[Image:WoodenCheckDam.jpg|thumb|right|300px|Cross section of wooden check dam. Overtop "pour spout" must be included. <br> Drawing: [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFkQFjAB&url=http%3A%2F%2Fwww.saiplatform.org%2Fuploads%2FModules%2FLibrary%2FSAI%2520Technical%2520Brief%25205%2520%2520The%2520Importance%2520of%2520Soil%2520to%2520Water%2520Use.pdf&ei=gf91T6GYJ-jWiAK7zuGnDg&usg=AFQjCNFDyR4mjTVCcvvTt-9v4OrxAZQfDA&sig2=iMzgbW0eK395na_V_YA4Kw ''Water Conservation Technical Briefs''.] SAI.]]
The sides of the check dam must be higher than the centre so that water is always directed over the centre of the dam (this avoids the dam being outflanked by the flow).
Winona
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