Concept and usefulness of leveling in civil engineering

This construction video is based on leveling example. The video will help you to obtain the elevation of a point at the ending of an uncover travers, if provided the elevation of a point at the starting of the traverse as well as the intermediate foresight and backsight measurements.

Levelling defines the method of ascertaining the relevant elevations of various objects or points on the surface of the earth. This is performed by obtaining measurements in the vertical plane. So, this part of surveying is associated with measurements in vertical planes.

To carry out various civil engineering works like major buildings, highways, dams, canals, water supply and sanitary schemes, it is essential to define elevations of different points along the alignments of a suggested project for the design and completing the project. The successful completion of the projects is mainly based on finding the elevations of the ground control points and control points of the structures perfectly.

Leveling can serve the following purposes :-

  • To obtain the variance in levels of points/objects
  • To find out contour map of an area
  • To determine cross section of roads, canals etc
  • To get the depth cutting and filling in engineering works
  • To set up points or build machinery or set up a building component at a predetermined level.

How to check the stability of a structure