Civil engineering & tunnels

3D Laser Scanning for Civil Engineering, Tunnels and Infrastructure Surveying

High-precision geometric documentation in built environments. Tunnels, roads, bridges, structural geotechnics, infrastructure topographic surveys. Millimetre accuracy, point clouds ready for CAD/BIM.

What blocks your civil engineering project

Inherited infrastructure plans don't match reality after decades of interventions and reinforcements.

Measuring a tunnel in service or an active construction site with conventional surveying methods halts operations and extends timelines.

Controlling section deformations, wall tilts or differential settlements requires millimetre precision that classical surveying cannot always achieve.

Without reliable geometric documentation, technical reports on structural geotechnics or infrastructure surveying lose evidentiary value.

Complete capture without interrupting the works

We scan infrastructure and built structures with a terrestrial laser scanner. We deliver DWG plans, BIM models and point clouds for civil engineering projects, structural rehabilitation and topographic surveys of built works.

Tunnels and underground works — as-built, section control, deformation monitoring.

Built civil works — bridges, roads, retaining walls, stabilised slopes.

Structural geotechnics — documentation for project design and technical reports.

Infrastructure surveying — surveys of built works, geometric control, setting-out.

Process and deliverables

Site visit: we analyse the environment, access and objectives

On-site laser scanning: complete capture with Trimble X7

Point cloud processing and registration

Delivery: DWG plans, BIM model, E57 cloud, technical report

Control sections and comparisons if required

Formats compatible with AutoCAD, Revit and engineering software

See real projects

3D laser survey of 600 metres of coastline in Sitges: 3 georeferenced groynes with a complete inventory of coastal infrastructure. An example of the type of capture we apply to built civil works.

Frequently asked questions about 3D scanning for civil engineering

Yes. We work in tunnels and underground construction, capturing the as-built, controlling the section and monitoring deformations. Each project requires a prior assessment of access and safety.
The Trimble X7 has ±2 mm precision under standard conditions, with a range of up to 80 metres. Outdoors, georeferencing allows integrating the point cloud with official cartography and other topographic surveys.
Yes. Repeated scanning at different dates allows comparing point clouds and quantifying displacements, settlements or crack openings with millimetre precision. This is the basis for documented structural monitoring.
We deliver DWG plans, BIM models and point clouds in E57. Formats are compatible with AutoCAD, Revit and engineering software.
We operate throughout Catalonia: Barcelona, Girona, Tarragona and Lleida. For singular civil engineering or infrastructure projects we also cover the rest of Spain. Contact us with the location and we will confirm availability and travel.

Tell me about your civil engineering project

Send me the location and type of infrastructure (tunnel, bridge, civil works, wall, topographic survey) and I'll provide a timeline and indicative cost with no obligation. Response within 24 business hours.