Lohsa (dpa/sn) - After the massive landslide in March 2021, the renovation of the Knappensee will drag on until the end of this decade. A particularly high level of security applies, said the Saxon mining authority on Friday. "We will do everything we can to get the work moving quickly and safely," emphasized Bernd Sablotny, spokesman for the management of the mining remediation company LMBV. The costs are estimated at at least 30 million euros.
Martin Herrmann from the Oberbergamt emphasized that the use of the lake will be sought before the rehabilitation work is completed, provided that it is geotechnically possible. The prerequisite is that a stabilizing dam is heaped up and compacted in order to prevent masses of earth from flowing out.
In March 2021, the shore of the lake in the district of Bautzen was 300 meters long. About a million cubic meters of soil began to slide, eyewitnesses reported a 1.50 meter high surge wave. Some buildings were damaged on the opposite side of the lake. According to the Oberbergamt, the landslide was triggered by preparatory work as part of the ongoing bank rehabilitation.