Cervical spine Ägena

• Client: Municipality of Obergoms
• Site management/reference person: SRP Ingenieur AG
• Site manager: Rafael Millius
• Foreman: Diego Bodenmann
• Construction period: April 2023 - December 2024
• Construction costs: 3.60 million

Technical data:

• Logging and clearing approx. 9'000 m²
• Soil removal & excavation pits approx. 25,000 m³ solid
• Embankment fills approx. 10,000 m³ solid
• Block set shoring approx. 6'000 m³ solid
• Filter and drainage layers approx. 3,500 m³ solid
• Seepage pipes approx. 500 m
• PE pipes approx. 250 m
• Cable protection pipes approx. 400 m
• Geotextiles approx. 15,000 m²
• Nail walls shotcrete approx. 750 m²
• Anchors approx. 120 pieces
• Bridge demolition/new construction 2 pieces
• Formwork approx. 1'100 m²
• Reinforcement approx. 70 tons
• Concrete approx. 500 m³
• Surfacing work approx. 500 m²
• Building demolition 4 pieces
• Culvert structure 4 x DN600, approx. 20 m

Project description:

The Ägene flood protection project in Ulrichen comprises comprehensive structural measures to improve protection against flood events and to enhance the ecological value of the watercourse.

• Dam construction along the right bank of the Ägene / terrain adjustments
• Construction of two bridges (concrete structures); bridge to the campsite & bridge to the hole
• Extension of the Langlauf bridge (left bank)
• Hydraulic engineering design of the banks and estuary area
• Watercourse structuring
• Catchment structures & pipes to secondary channel (Wiesengbach)
• Demolition and dismantling (bridges, buildings, decking, fences and fireplaces)
• Culvert structures
• Construction of an alluvial wood screen
• Surfacing work
• Excavation work and securing
• Miscellaneous ancillary work

Requirements:

• Construction in water & dewatering
• Construction logistics
• Environmental regulations and occupational safety during flooding