3D Laser Scanning Manholes beneath Sydney CBD

Many of the manhole covered pits under the busy roads of Sydney's CBD have been there for decades. Often very little information about these pits is available. Things like dimensional data, shape of the pit, depth of the pit and the condition of the space.

Access into these pits requires the appropriate confined space permits, trained personal, evacuation plans etc. All of which adds cost and complexity to obtaining measurable and accurate information.

BCE Spatial recently assisted a company in Sydney to obtain this information on a number of pits in the CBD using 3D Laser Scanning. No one entered the pits and the scanning of each pit was completed in approximately 15 minutes.

The scanner captured LIDAR imagery as well as photographic images providing outstanding 3D measurable data that is now being used for further planning of works to be carried out.


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