A sand dam is a small dam built on and into the riverbed of a seasonal sand river. Its purpose is to capture and store water beneath sand: sand is transported during periods of high flow and accumulates upstream of a sand dam, resulting in additional groundwater storage capacity of riverbed and –banks. This reservoir fills during the wet season, providing water to cover dry periods.
A sand dam is a small dam built on and into the riverbed of a seasonal sand river. Its purpose is to capture and store water beneath sand: sand is transported during periods of high flow and accumulates upstream of a sand dam, resulting in additional groundwater storage capacity of riverbed and –banks. This reservoir fills during the wet season, providing water to cover dry periods.
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