Germany – Landscaping work for parks – Tierpark Berlin | Umbau Dickhäuterhaus | VE27a - GaLaBau 1. BA

The scope of this tender encompasses the visitor area surrounding the south and west enclosures. Completed walls, clad with artificial rocks, border the northern and eastern edges of the work area. Particular care must be taken here to avoid damaging these areas during groundworks. The entire area is overgrown with mature trees, requiring special attention to detail. The area to be worked on is approximately 25 meters wide and 300 meters long. It is bordered on one side by the aforementioned walls and on the other by a construction fence, which separates visitors from the work site. This fence is provided by the zoo. The contractor must take this specific situation into account in their work methods and factor it into their unit prices. The entire area must be cleared. This primarily consists of meadows and planted areas that have seen the growth of black locust trees over the past two years. In addition to clearing, the water-bound surface of the paths, including the substructure, must be removed, temporarily stored, and disposed of. This procedure is used for areas that will no longer be pathways. Where existing and new paths overlap, only the top two layers will be removed and replaced. In certain areas, asphalt and concrete surfaces with concrete kerb edges will be demolished, temporarily stored, sampled, and disposed of. This tender includes sampling of materials subject to mineral waste recycling. These materials must be analyzed according to LAGA guidelines and the Substitute Building Materials Ordinance (ErsatzbaustoffV). Since samples are not yet available, the quantities of materials to be disposed of will be allocated proportionally to the different categories. Disposal will take place after sampling. In addition to the landscaping work, irrigation lines will be installed using a cable tray for supply lines, drip irrigation in the planting areas, and sprinklers at the tree locations. In the planting areas, the drip irrigation hoses will be laid so that...