Site design requires topographical features be surveyed with accuracy and precision. This site was more complex than usual due to the variety of surfaces constructed through history, and the unmapped network of underground infrastructure beneath the site.
Survey control was established with a robotic instrument and supplemented with conventional survey. CEG’s drone (sUAS) pilot flew NADIR and two oblique flights. Ground based capture was also completed using a handheld camera with a 10mm lens.