The thickness of the parapet wall, on the valley side of the roadway, is usually kept as

Name: The thickness of the parapet wall, on the valley side of the roadway, is usually kept as
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The thickness of the parapet wall on the valley side of the roadway is usually kept as 60 cm to ensure adequate strength and safety against the forces it may encounter, such as impacts from vehicles or environmental factors.

The Thickness of the Parapet Wall, on the Valley Side