How to do Contour Survey ?

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Now look at this plan.

the reduced levels on the various nodes on the grid have been mentioned.

We shall be now drawing the longitudinal profile of the land on the axis C-C.

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If we go for the option Z , It shall be complete cutting. option X is complete filling. Whereas the option Y is partial cutting and partial filling.

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Now let us calculate the volume of cutting and filling on Axis C-C for the Option Y :

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