Environmental Surveys

Topographical surveys

Environmental design begins with terrain. We undertake detailed 3D topographical surveys across floodplains, river corridors, reservoirs, coastal zones and rural landscapes. Ground levels are captured at sufficient density to support hydraulic modelling, earthworks design and impact assessments.

All environmental survey data is tied to a robust control network ensuring compatibility with modelling software and long-term monitoring requirements. Accurate levels reduce uncertainty. Reduced uncertainty lowers risk.

Aerial surveys and photogrammetry

Large or inaccessible sites require efficient solutions. Our aerial surveys use UAV photogrammetry to capture high-resolution imagery and generate orthomosaics, point clouds and digital terrain models. Ground control is established to ensure survey-grade accuracy.

Aerial surveys are particularly effective for:

• Floodplain mapping
• Habitat and vegetation surveys
• Coastal and estuarine environments
• Landfill and remediation sites

LiDAR surveys

Where vegetation obscures terrain, UAV LiDAR provides enhanced ground definition. Multiple returns per pulse allow better penetration through canopy cover and improved terrain modelling. All datasets are referenced to established survey control and supplied in industry-standard formats ready for design and analysis. LiDAR strengthens modelling confidence in complex environmental conditions.

Bathymetric surveys

Water environments require specialist capability. We deliver bathymetric surveys of reservoirs, lakes and river sections, capturing hard and soft bed levels using remote survey platforms. Data is aligned to the same control framework as terrestrial survey, ensuring continuity above and below water. These surveys support capacity assessment, sediment monitoring and flood modelling.

Utility mapping

Environmental schemes often intersect with buried infrastructure. We undertake PAS128 compliant utility mapping surveys to identify and record underground services using GPR and EML techniques. Accurate mapping reduces environmental risk and protects both personnel and assets during construction. All data is presented in 2D and 3D formats compatible with environmental design workflows.

Monitoring and change detection

Many environmental projects require long term-monitoring. We support repeat surveys, deformation monitoring and volume analysis to track movement, settlement or erosion. Consistent control and methodology ensure measured change reflects real conditions rather than survey variation. Reliable monitoring supports regulatory compliance and sustainable management.

Working in sensitive environments

Environmental sites demand careful planning. We minimise disruption through considered methodology and remote survey techniques where appropriate. UAV operations are conducted in full compliance with CAA regulations and site-specific constraints. Our approach balances efficiency with environmental responsibility.

Integrated digital deliverables

Environmental projects involve multiple stakeholders. We provide data in formats that integrate seamlessly with modelling and design platforms, including AutoCAD, Revit, IFC, LAS and GeoTIFF. All deliverables are aligned to a clearly defined grid and vertical datum. A clear data structure reduces risk and improves coordination.