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Water Portal / Rainwater Harvesting / Groundwater recharge / Sand dam

290 bytes added, 22:22, 30 March 2012

→‎Suitable conditions

- Long lifespan if maintained correctly.

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- Site-specific technology – not suitable everywhere. <br>

- External expert knowledge needed <br>

- Labour intensive construction <br>

- Capital intensive Although cost per volume is cheap, the actual structure that needs to be made is expensive. <br>- The site must fit very specific conditions If dam is built in stages, it can be difficult for the community to show up next season for the sand dam next stage of work.<br>- In Kenya, experience shows that up to 80% of dams might not be successful functioning as they should due to poor design. <br>

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