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Ever wonder what really makes laser survey data truly accurate, rather than just “good enough”? Here’s the not-so-secret ingredient: ground control points, or GCPs for short. Now, while LiDAR is often celebrated for its high-tech, futuristic vibe (and don’t get -
Picture this: you’re standing under a busy city bridge or walking into a public building that’s been there for decades, maybe longer. Ever wondered how these giants manage to keep standing year after year, weathering storms, traffic, and the relentless -
Ever looked out across a river or a busy harbour and wondered what’s actually happening under the water? Perhaps you’re planning a bit of construction near water and need to know what’s going on below, or maybe you’re just curious -
If you have ever looked over a river or harbour and wondered how anyone knows what is below the water, you are not alone. Whether you are planning construction near water or simply curious about nautical charts, learning about hydrographic -
Underneath the very busy roads and also peaceful parks lies a secret system of utilities that beats with life, providing power to our cities and also homes. In Castle Surveys, we understand the importance of these underground utility surveys – -
Manual Monitoring Using Retro-Reflective Targets Manual monitoring with retro-reflective targets is one of those classic techniques that just keeps delivering. If you’ve ever been on a site where you need to keep tabs on a bridge, a building or even
