- The grandstand at Grenchen swimming pool was built nearly 60 years ago.
- It consists of cantilevered supports made of site concrete and prefab concrete elements laid on top.
- The concrete structure was not watertight and led to significant corrosion damage.
- The 1st step involved refurbishing the concrete structure.
- The 2nd step involved waterproofing the grandstand from the top.
Total construction sum CHF 116,000