Topographic & LiDAR Surveys

Accurate field data is the foundation of reliable engineering and infrastructure design. At Bhygraph Engineering, we provide precise, georeferenced surveying services for complex projects, transforming field measurements into clear and usable engineering data.

Topographic surveying

Our topographic services include detailed surveys, spot-height plans, GNSS networks, site mapping, and setting-out services for accurately positioning structures and infrastructure.

We carry out longitudinal and cross-sectional profiles to support the design of roads, drainage systems, and other linear works. Our teams also perform earthwork volume calculations, as-built surveys, cadastral surveys, and land-use mapping to support planning, construction, and development projects. These measurements provide engineers and project owners with reliable information throughout the different stages of a project.

Drone LiDAR and photogrammetry

For large areas and complex sites, our drone-based LiDAR technology enables rapid and highly detailed data acquisition. Using a DJI Matrice 350 RTK, we can capture millions of points over large project areas in a short time. LiDAR data can be processed into classified point clouds, digital terrain models, digital surface models, and georeferenced orthophotos. Aerial photogrammetry further complements LiDAR by providing detailed visual information and supporting 3D modelling and volume calculations.

Project experience

Our surveying capabilities are particularly valuable for roads, ports, infrastructure corridors, and large development sites. Bhygraph has carried out land surveys and related expertise over 125,000 hectares in Lom and Djerem, as well as surveys supporting infrastructure projects in Douala.

By combining modern surveying technologies with experienced engineering and topographic teams, we deliver accurate, georeferenced data that can be directly integrated into design and construction workflows. From detailed site surveys to large-scale LiDAR mapping, Bhygraph provides the reliable spatial data your project needs.