Recently, our Survey + Scanning team performed topographic survey of a newly installed transmission line of monopole towers to determine their plumbness top to bottom, as well as the straightness within each segment.
Using a Leica ScanStation P50 long range 3D laser scanner, with a scanning accuracy of 3mm and up to 1 kilometer in range, the team was able to measure plumb deviations from each towers’ centerline.
Although, two of the towers appeared to exceed the plumb tolerance, the survey helped determine that solar camber and wind effects were at play, but the towers were within plumb tolerance.