VRT Finland surveyed the hydropower plants of Edenforsen and Degerforsen for Uniper, a large international energy company. The inspections included the examination of underwater dam structures, earthfill dams and the topography of the water reservoir basin floor. Uniper was interested in underwater surveys of hydropower plants to ensure its reliable, safe and sustainable energy supply to Swedish industry. The energy company needs to be informed about the overall condition of its underwater assets and their physical and geographical forms as the correct functioning of the dams provides the basis for secure energy production as hydropower covers approximately half of Sweden's power demand.
VRT Finland helped City of Regensburg manage their underwater assets by inspecting the bridge structures and the riverbed of a 12th-century bridge, the Stone Bridge (Steinerne Brücke), in Germany. The City of Regensburg needed a method for underwater inspections, which could provide more details compared to traditional inspections methods for monitoring the condition of bridge infrastructure. The detailed 3D data, processed and interpreted by VRT's licensed marine inspectors, can be used for long-term change comparisons to observe the possible changes in the Stone bridge's structures and in the condition of the riverbed.
VRT Finland surveyed the dam structures of a former flood retention basin, which has later been harnessed also for electricity production, for the Centre for Economic Development, Transport and the Environment for Southern Ostrobothnia in Finland. During the three-day-inspection in murky waters, two different dam structures were extensively measured. VRT’s processed and analysed survey data offers a precise basis for maintenance and asset integrity management. ELY Centre utilises the results to improve dam safety and usability of water structures.
VRT has studied the condition of Finnish waterways together with The Finnish transport agency (FTA), since 2012. FTA has been a pioneer in using sonar inspection to facilitate asset management of underwater structures, and the results from VRT are used to schedule future inspection, plan maintenance regimes and reduce the risk related to waterways traffic.
VRT performed a underwater survey comprising 6-km of quay walls and more than 3-km of breakwater in Denmark’s largest container Port, Port of Aarhus. The fieldwork of inspecting underwater structures lasted for five working days and the end-result will enable the port to proactively prevent damage and failure in the future.
VRT's field team performed an all-encompassing underwater survey of the Port of Bodø in Northern Norway. Completed in only two working days, the inspection included more than 2-km of quay walls. On the basis of the inspection, Port of Bodø is now planning repair work and development priorities for their port.
VRT surveyed 10-km of underwater pipelines for Finnish electricity, water and district heat provider Jyväskylä Energy Group. Lasting for four working days, the inspection provides an accurate map of the location and condition of the pipes as well as facilitates future repair work and investments into the network.
A 15-km quay wall inspection utilising VRTs sonar 3D imaging technology for one of Europe's largest inland port operator. And a recent inspection to understand the changes in the underwater assets as well as to ensure sufficient navigational depth.
In 2016 as part of ongoing asset management programme and commitment to maximising the operational life of its assets the Port of Dover employed VRT to survey over 3km of quay wall infrastructure and seabed topography to aid in the detailed inspection of these assets.