The Olef dam was built between 1954 and 1959. It serves to protect the surrounding communities from flooding and to provide drinking water for the Oleftal waterworks in Hellental. 1962-1965 the 1st reinforcement was built. In 1965, the valley was completely filled with water for the first time and thus the dam was officially opened. A further reinforcement followed in 1982-1986. The double reinforcements were necessary because the internal stresses and cracks appeared as a result. The dam is a concrete pier-cell construction and is still considered unique in Germany. Please find the full photo story here!
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