forestry services - traffic safety measures on trees on federal waterways of the wsa elbe for the bfb mittelelbe of the federal agency for real estate tasks (voek 193-22)./ as part of the regular maintenance of the federal waterways in the official area of the waterways and shipping office elbe (wsa), traffic safety on trees advertised. --- the scope of services includes professional tree care measures, felling, pruning, young tree care as well as shortening and rootstock milling within the work of traffic safety on areas of the wsa, in embankments and bank slopes, as well as along the sheet piling. the trees to be cared for are owned by the wsa elbe. existing tree inspections lead us to expect an annual scope of around 50 measures/trees.