Shaft survey in the city area of Fürth (approx. 12,000 shaft structures) as a basis for constructing/updating the sewer database and extrapolation of the 6 main catchment areas.

All relevant building components must therefore be recorded in the channel information system. In addition to the geometric shape of the shaft construction, the position, height, dimension, direction, slope, profile shape and material of the sewer pipes, house and industrial connections that enter and exit must also be recorded. The measurement should be carried out to a high standard, which requires a maximum level of accuracy. The results are intended to serve as a basis for detailed and exact calculations, such as those required for hydraulic verification.