With the June flood 2013 at the White Elster, the insufficient flood protection in the city of Zeitz became clear. Large parts of the city were flooded. In the course of this, the Saxony-Anhalt State Flood Protection and Water Management Agency commissioned the planning for the expansion of the existing Salsitz dike, km 0.0 to 1.15, which currently offers no protection against an HQ100.
The repair of the Salsitz dike in Zeitz is part of the flood damage removal of the June flood in 2013 and the flood protection concept of the state of Saxony-Anhalt. The increase of the left-sided HWS system of the White Elster takes place on the existing route by the installation of a protruding sheet wall. The existing HWS system is crossed by a variety of cables and conduits.
At the dike kilometre 1 + 065, the Hasselbach, a second-order body of water, crosses the HWS facility. In extreme cases, the White Elster staggers into the Hasselbach and leads to a flooding of the industrial area in the hinterland or the Zeitzer urban area. In order to prevent the backlog, it was therefore planned to build a new barrier structure to close the dike gap.
The barrier structure is a statically independent reinforced concrete structure (trough profile) with a rectangular opening as a passage. A stainless steel glider, which is operated by hand with a mobile drive key, serves as the locking organ. The training of the barrier structure, in particular that of the sole scaffolding, ensures ecological continuity. The closure plane can be filled independently in the sole with fine sediments. In order to ensure protection from an HQ100 of the White Elster, the building walls of the plant are set to a height level with the upcoming HWS system.
The construction was started in May 2020. Steinle Bau GmbH, based in Oschatz, was commissioned with the construction. At the beginning, the bomb disposal, archaeological investigations and searches for existing conduits and cable lines took place.
Currently, the piling walls are being installed as well as preparations for the construction of the Hasselbach barrier. Tractebel Hydroprojekt GmbH is on site as a construction supercontractor. The planned end of construction is in spring 2021.
Albrecht Köhler - Weimar