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A view of some of the leaky dams on the Al Baydha Project's demonstration site during rain in September, 2015. These dams function by slowing down the water and catching the silt eroded from upstream. As they develop they will be planted with very hardy trees--ziziphus, acacia, & Faidherbia, that will biologically moderate flood flow once they are established. This slows down floods, allowing them to be directed into swales and other earthworks once the water hits the flood plain.