State the necessity of providing catch water drain in Hill Roads
1 Answer

1) Catch water drains are provided to collect excessive rainwater in heavy rainfall regions i.e. in case of hill roads.

2) These drains are useful to avoid large water flow reaching to hill road surface.

3) It helps to avoid landslides in hill roads.

4) It may be excavated natural rock section on hill top side which avoids erosion of soil along hill road.

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