Awarded as the best online publication by CIDC

Explain Squares or Grid Method of Contouring?

Squares or grid method is suitable for contouring of plains or gently sloping grounds.

The steps adopted are as follows:
i) Mark square grids on the land to be surveyed. The grid size would depend on the extent of survey.
Generally a 1m x 1m grid is selected for small works and a larger grid size for large works

ii) Levels are taken at all the corners of the square and the intersection of the diagonal.

iii) Levels taken on the intersection of diagonals is used for verification of the interpolation.


vi) Contour map is plotted in the office by interpolating points of equal elevation based on the levels taken on the corners of the square.

We at are thankful to Mr Ramasesh Iyer for submitting this useful information to us.

Share this post

Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

If you have a query, you can ask a question here.

2 comments on "Explain Squares or Grid Method of Contouring?"

numeri ame says:

I really need to thanks

Domnick Kiche says:

I am thankful for the good information you people do provide for us may God be with you

Leave a Reply

Your email address will not be published. Required fields are marked *

Ask a question