via donau surveys riverbanks, foreland basins and retention areas including all objects. This entails a number of tasks: position and altitude recording, sediment and slope measurements as part of the oversight of the construction of structures on riverbanks, levelling control of dams, calibration of bridges and flyovers, surveying and demarcation of water engineering structures, drilling holes and similar measurements of underwater pipelines and the surveillance of biotope sedimentation.

via donau uses the latest technology for executing these tasks – ranging from electronic data recording devices to fully automatic map creation.