Aa posted an Question
September 19, 2020 • 21:25 pm 30 points
  • IIT JAM
  • Geology (GG)

Why narrow valley is needed for river valley project and how river valley helps in improving navigation?

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    Rahul kumar best-answer

    Narrow valley is best suited for river valley project like construction of dams, bridges etc. The main reasons behind this are: 1. Narrow river valleys are created during young stages of the river. At young stages, rivers have high downcutting capacity and low lateral cutting capacity. A river project is suitable on narrow valley because the construction will be stable for very long time because of stability of the banks of river. 2. Rivers with narrow valley have small flood plane area and hence the chances of river flooding is comparatively low.

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    Sajan sarthak best-answer

    Narrow river valley is preferred as it's economical. and the upstream silt is easy to remove by mechanical process. and the arch dam is stable dam .. NAVIGATION IS QUITE ESSENTIAL AS RIVER FLOWS IS UNIDIRECTIONAL.

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    best answer sir

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