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Two translucent topographic surfaces layered slightly out of alignment in cool blue and warm amber
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Why CAD overlays fail: File formats, site grids, and elevation errors

A technical walk through why design overlays shift and heatmaps turn one color, covering the four conditions every comparison must share, what each civil file format can and cannot tell you, and how to validate alignment before it becomes field instructions or closeout evidence.

Two construction workers looking at a laptop.
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Design surface model shown on the Propeller platform.
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Meet Your Customer Success Team: Milo Vejraska
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Meet Your Customer Success Team: McCain McMurray
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