Before starting any construction process we have to do survey. Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional position of points and the distances and angles between them.
The planning and design of all Civil Engineering projects such as construction of building highways, bridges, tunnels, dams etc. are based upon surveying measurements.
Moreover, during execution, project of any magnitude is constructed along the lines and points established by surveying.
Thus, surveying is a basic requirement for all Civil Engineering projects. It may be small or big, we do all.