STFD is among quality services providers for transmission line survey companies in India.

Surveying is an important aspect of transmission line due to the following:

The objective is to optimize the cost of transmission line based on following considerations:

• Shortest route clearing various objects
• Minimum number of river crossing towers
• Accessibility i.e from approachability for construction as well as from law and order point of view.
• Selection of optimum foundations based on following information
• Type of soil
• Type of terrain: Benching and rivetment requirements, requirements of leg extensions
• Loose hills especially in young Himalayan region, areas prone to landslides
• Area of submergence as well as prone to river meandering

It helps in ensuring the statutory clearances with respect to following:

• Power line crossings, Railway crossings, road crossings etc.
• Clearances from habitation
• Environmental clearances
• Minimum forests, minimum forests density
• Historically important areas and monuments
• National Parks and wild life sanctuaries

The surveys to collect the above information are carried out progressively at different stages of the project due to various reasons.