3D Multibeam Sonar and Laser Scanning Surveys for Ports, Harbours and Terminals

Whether you are monitoring port structures, planning dredging in the seabed, or expanding quays, you need data about the underwater assets, their condition, and underwater topography.

Multibeam sonar inspections and detailed 3D data enable us to inspect structures efficiently even in the largest of ports. Based on the detailed visualization images and comprehensive reports we deliver, decision-making on maintenance is now better informed than ever before. Inspections are performed using multibeam sonar below the surface and laser scanner for structures above the surface.

Underwater sonar inspections make it safe and easy for ports and oil terminals of any size to have a clear and complete view of the condition of their structures. With us, scheduled inspections can be carried out with minimal to no interruptions to the port and harbour traffic.

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Detect any signs of deterioration or erosion in port and harbour structures

Regular multibeam sonar surveys are essential for gaining knowledge on the condition of quay walls, breakwaters and other waterfront structures. Multibeam inspections also deliver a digital representation of the accumulation or erosion of the seabed sediment in order to maintain a safe clearance depth and safeguard the structure. 

See how 3D inspections helped Port of Dover in their asset management programme


Structural survey results as 3D data delivered easily online for digital asset management

In addition to a written survey report with expert interpretations, we deliver you an online-report in our unique GISGRO online service. GISGRO enables easy data management, communication and utilisation of collected survey data. All data can be stored, compared and analyzed in one place, without any additional softwares, only with a web browser.

How to extend the life-cycle of structures? Contact us – we are happy to discuss the best solution with you!

3D data from Bayernhafen Gruppe

We are very satisfied with the results of VRTs harbour inspection. The documentation is a very good base for further decisions and gives a detailed view on the conditions of the wall.

—Thomas Lang, Bayernhafen GmbH, Regensburg

Read more about the cooperation



Clear overviews and detailed images significantly reduce the risk of underwater damage going unnoticed.



Resource-efficient inspection methods allow a high return on investment ratio.



Muddy water or currents are not an issue.



Targeted repairs can be made based on accurate positioning data and the monitoring of development.

More details, less costs with digitalized assets

Our easy-to-comprehend 3D visual representation of your site display structures above and under the surface as well as the underwater ground and terrain with unrivalled accuracy finding previously inaccessible defects.

The Multibeam Sonar Inspection is operated on a boat — the VRT Survey vessel. There’s less need for divers or underwater equipment. The use of 3D technologies results in the fastest, most conclusive inspections — cost-efficiently.

3D inspections and digital assets can help you better predict and handle future costs.

Over time structural costs in maintenance and repairs have a tendency to build into an exponentially rising tower.

Interested in our services? Contact us!

Karri Kolehmainen & Ville Mäkeläinen

Karri Koistinen

+358 40 0604927




Ville Mäkeläinen

+358 44 513 2222



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