Transmission lines forms the backbone in power networks, being the installation which transmits power over long distance. Despite that transmission lines are condnits of electric energy, then design also needs survey work. At first the DGPS survey of the entire transmission route is conducted followed by the survey engineers spots the 3D structure location on site. Before the survey of the execution of the design survey for structure locations, the design engineers undertakes both office and fields reconnaissance to account for routing constraints.