The "day-lighting" of one of the river Alna's sections, combined with storm-water management, and an urban park with informal recreation areas are some of the key success factors of the pilot project for the large-scale restoration of the river Alna.
Alna has been released from its old concrete pipe and restored back into its natural form with soft planted banks and pond areas. This re-naturalisation not only provides habitat creation and a distinctive green character to an urban park, it also ensures important river management functions.
High quality and artistic design integrates the restored natural qualities of the river into the urban fabric. New pathways link the river into local circulation and provide new recreation possibilities. Consequently, the quality of the water is now good enough to swim in, and a bathing pond with a beach is the central focus of the park. A wooden deck provides a comfortable sunning area too.
The technical aspects of water management has been integrated with the attractive and relaxed atmosphere of the park. The storm-water management of the adjacent industrial buildings has been embodied into the river system. Rainwater is collected from the roofs and conveyed via surface details into a planted cleansing biotope area. Here, the rainwater is cleansed through a multi-layered substrate and held back for slow release.
This project was carried out by Atelier Dreiseitl, now member of the Ramboll Group.
Local partners: 13.3 Landskapsarkitekten