What is meant by countour trenching?

1.	What is meant by countour trenching?
Answer» ANSWER: Counter Trenching : Contour trenches are DITCHES dug along a hillside in such a way that they follow a contour and RUN perpendicular to the flow of water. The soil excavated from the ditch is USED to form a berm on the DOWNHILL edge of the ditch.

Answer»

Counter Trenching : Contour trenches are DITCHES dug along a hillside in such a way that they follow a contour and RUN perpendicular to the flow of water. The soil excavated from the ditch is USED to form a berm on the DOWNHILL edge of the ditch.

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What is meant by countour trenching?​

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What is meant by countour trenching?