The Tetrahedron Bottrop (in german “Haldenereignis Emscherblick” Tetraeder) in Bottrop (Ruhr area / Germany), composed of steel pipes and cast iron nodes, is a symbol of structural change in the region. The construction was erected on a former mining spoil tip. The slag heap on Beckstraße belongs to the generation of slag heaps known as terraced mesas. It was built between 1969 and 1993 and has been owned by the Regionalverband Ruhr (formerly Kommunalverband Ruhrgebiet) since 1997.
The structure of the Tetrahedron Bottrop is around 50 metres high and complements the 65-metre-high slag heap. Free-form staircases and viewing platforms make the sculpture accessible. The stairs and platforms offer a unique view over the interior of the tower, the surface of the spoil tip and the panorama of the urban landscape along the Emscher.
The “Haldenereignis Emscherblick” was created as a project of the International Building Exhibition Emscher Park (IBA), RAG, the Kommunalverband Ruhrgebiet (KVR) and the city of Bottrop.
Our photos show the tetrahedron as well as the plateau and various panoramic views from the spoil tip. The pictures show, among other things, the paths/stairs to the slagheap, as well as the indoor ski centre (alpincenter) and the Prosper Haniel mine.