Question

What is the advantage of check dam?

Answer 1

A check dam is a small, temporary or permanent dam constructed across a drainage ditch, gully, swale, or channel to lower the speed of concentrated flows (like an overflow weir) for a certain design range of storm events. They may be more categorized as a type of floodwater rather than a runoff harvesting technique. A check dam can be built from logs of wood, stone, pea gravel-filled sandbags or bricks and cement. They have been used widely in Kenya and India. These dams can also be made as leaky dams. Dams that have been built in riverbeds with no coarse sand transport (Sand dams) may end up being used in this way. These structures are relatively cheap and can last about 2-5 years.

Suitable conditions

Locate in natural runoff areasSoil in vicinity needs to have sufficient infiltration capacity.
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Answer 2

Answer:

here is your ans dear

Explanation:

The màin advantages of check dam are it prevents soil erosion in the catçhment ,it provides water available in remote places seasonly,it also provides employment in local àrea. Due to check dams under ground water table raises which helps a yeild of water to nearby dug well or tube wells .

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