Krupp Fördertechnik has been awarded a contract to supply and erect two cable cranes for the construction of the drinking water dam Leibis-Lichte in Thuringia, Germany. Each cable crane has a load capacity of 20t with a lifting height of 140m and a span of 615m. Primarily the cable cranes are used to transport concrete for construction of the dam. Concrete will be trucked from the mixing plant to a loading ramp and poured into buckets. The buckets are suspended from the bottom flange of the cranes which will transport them to the place of concrete pouring in the dam. The cable cranes are of radial-travelling type – the track rope on which the trolleys run is stretched between a fixed point and a travelling countercarriage. To adapt the runway of the countercarriage to the topography of the terrain it was necessary to design the runway as a spherical curve, with the fix-point at the centre of the sphere. Maximum inclination of the runway is 40%. The photo shown is a similar system from Krupp being used in the construction of a concrete dam in the Dominican Republic in 1990.