Lake rehabilitation (Hallwilersee): Perimeter (area)

In accordance with the indicative plan, lake-external measures for the rehabilitation of Lake Hallwil are to be carried out in the 'Special Area Hallwilersee'. The dataset consists of four levels: 1. Perimeter, 2. Drained surfaces, 3. drainage pipes and 4. Shafts to the drainage lines, whereby the data on the drainages were collected only within the specialty Hallwilersee. Different, partly historical drainage plans form the basis.