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Water Portal / Rainwater Harvesting / Groundwater recharge / Leaky dams

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[[Image:leaky dams icon.png|right|80px]]

[[Image:LeakyDam.jpg|thumb|right|200px|'''Leaky dam.''' Re-hydrating the earth by sustainable, small-scale sub-surface water retention techniques, Vietnam. Photo: Partners voor Water (2009).]]

Implementation of this technology must be accompanied by other interventions. These include the strict protection and complete control of grazing along with extensive watershed management in the catchments to reduce the sedimentation loads in the reservoirs as well as enhancing the natural recharge of precipitation. Shrubs and local plants may be planted to help break up the soil (with their root systems) so that infiltration is easier.

===Suitable conditions===

Good practice is similar to that for a [[sand dam]].

* Ensure they are not built in an area where water will bypass the structure. Riverbanks should be equal in height and tall enough (height of dam + height of flood +10%), and dam should not be constructed near the bend in a river.

Winona

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