Pub. 15 2022 Issue 1 • UCLS Foresights 27 More imagery on page 28 survey. Each mark was checked and then checked again. Also, the pre-cast panels were designed to precisely t over the many windows of the structure. Prefabricated glass panels were installed in these windows. The pre-cast panels and the glass could not be easily or signi cantly modi ed onsite. They simply had to t when they were installed. One of the major challenges to this project was nding a balance between the building’s design and how it was actually constructed. Meeting this challenge involved comparing the terrestrial LiDAR (Light Detection and Ranging) data with the construction plans and then adjusting the plans to mark out where the panels could be placed without any gaps or overlaps in the nished product. Another problemwas nding a way to safely mark out the panels/pre-welds in hard-to-reach places. This was done by a combination of personnel lifts and climbing the steel with fall protection in place. Every tool in a surveyor’s arsenal was used, from a lowly plumb bob and string to the most sophisticated total stations and LiDAR scanners. All of this happened while workers were dozens of feet above the ground. Everyone at Diamond Land Surveying grew as surveyors during this project. The layout lasted about nine months, and there were as many as seven surveyors from Diamond at the AMOSWILSON, PLS Amos has been surveying in Utah for over six years and has experience in LiDAR, Drones, Construction and Boundaries. He now owns and operates Aegis Land Surveying. site on any given day. Coordination between the trades was crucial to getting the layout done in a safe and timely manner. Almost daily meetings were held between the survey crew and other trades such as the installers, waterproofers, insulators, crane operators, steelworkers, electricians, delivery trucks, etc. Each day saw new challenges, such as a change in the construction plans or how one area was prepped, but the installers needed layout in a different area. Because of this, the layout crew’s plans for the day were constantly evolving. Meeting with the other trades at their day’s end, and then performing the layout into the night helped the crew avoid surprises and gave them the ability to move the personnel lifts and other equipment without interference. Most of the layout was calculated on-site, so an up-to-date knowledge of the plans, and access to the engineers who designed the panels, was vital. The techniques learned, and the tools used will serve these surveyors for the rest of their careers. v
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