- Client: Canton of Valais, District 1 - Upper Valais, Mobility Department
- Site manager/reference person: Gaston Roth / Canton of Valais
- Site manager: Celine Ludi
- Foreman: Alain Ritz
- Construction period: June 2025 and October 2025
- Construction costs: 885'000.-
Technical data:
- Excavation/removal 469 m³
- Nail wall 333 m²
- Nails 343 m1
- In-situ concrete 160 m³
- Formwork 474 m²
- Reinforcement 26`777 kg
- UnGe 0/45 134 m³
- Pipes 18 m
- Inlet and inspection shafts 2 pcs
- Waterproofing 247 m²
- Scaffolding 520 m²
- Covering 147 tons
Project description:
The affected road section in the Parlei area (municipality of Törbel) was widened to optimize the alignment and to widen the valley side. For this purpose, a new leaning structure was built, whose 40 cm thick bridge deck was founded directly on the rock or on concrete ribs, depending on the section. The first 22.03 m lay directly on the rock without ribs. Between QP 11 and QP 13, the construction was supported by concrete ribs for 15.37 m. From QP 13 to QP 15, a 7.26 m long bridge slab was built underneath the existing one, which was only removed after the new waterproofing and protective fleece had been installed. From QP 15 up to the end of the project, the backrest construction was again supported on the rock. The 50 cm wide concrete ribs were founded in the rock and anchored back with SpannTop anchors (? 28 mm). The bracket head was hydrophobized; an OS 7 collar seal, EP5 waterproofing and a protective fleece were applied to the concrete slab. An OS 7 collar seal was applied to the concrete slab before the EP5 waterproofing was laid and protected by a protective fleece.
Requirements:
- Working under traffic
- Working on steep terrain
