Klingenberg Dam

dam prior to rehabilitation

dam prior to rehabilitation

The Klingenberg Dam was commissioned in 1914. Its main purpose is to serve as raw water supply, as a means of flood protection and as a source of hydroelectric power.

The main dam - a masonry gravity dam with massive cross section - is subject to an extensive rehabilitation measure. The entire intakes and associated structures, like sluice column and diversion tunnels, are completely rebuilt. Furthermore, the crest and the dam's upstream face receive a new sealing. As a result of the enormous flood event in 2002, the spillway and the stilling basin are subject to design changes by means of partial alteration and reconstruction.

The destined works at the upstream side of the dam required draining the reservoir entirely. In order to secure continous water supply by nearby dams, an auxiliary raw water extraction system involving the upstream dam and ducts was implemented in advance.

works at the upstream face

works at the upstream face

restored spillway

restored spillway

downstream side of the dam during works

downstream side of the dam during works

works on the operational dam

works on the operational dam

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