The hidden structure in Singapore is an underground tunnel built in 1888 for battery ammunition storage. Maek Consulting was tasked with performing an initial assessment and documenting the existing layout and condition to share with the client and stakeholders. They faced schedule challenges amid COVID-19 and survey difficulties given that there was no electricity in the tunnel. They needed 3D reality capture and modeling technology to generate an accurate geo-referenced model in a cloud-based environment.

Maek Consulting used drones with unique lighting to overcome the electricity issues and capture detailed photos, and they selected ContextCapture to process the images into an accurate 3D reality mesh. Using Bentley’s interoperable technology, they exported the model to a web-based application for viewing and sharing by the client and stakeholders for site planning. The solution eliminated the need for on-site activity during the pandemic and better documented the profile and geometry of the structure.