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Natural rock catchment and Open water reservoir

98 bytes added, 18:44, 5 April 2012

→‎Construction, operations and maintenance

[[Image:MeasureRockGradient.jpg|thumb|right|300px|To measure the rock gradient, a spirit-level horizontal on a 100cm length of timber is used. This rock is determined to be too steep.]]

In general, it seems that smaller scale dams owned privately might have more chance of success in terms of participation in the construction

and maintenance processes. However, using a self-help method of community organising, larger projects can also be successful.

* Water can be stored as an open reservoir – this can be done behind a stone masonry or concrete dam built directly onto the rock, or behind

an earth dam in a non-rocky area at the base of the rock face (for earth dams, see “Natural ground catchment & open water reservoir” for

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