L25 Erlachgalerie avalanche gallery, Defereggental
Austria
The avalanche gallery extends 1093 m overall, of which 140 m were built as a closed tunnel and the remaining 960 m as a gallery structure with an arched cross-section open along one side. On the downhill side, each section of the arched gallery structure is carried on 3 piers instead of a wall. Along the entire length, each section of the gallery cross-section was cast monolithically, complete with the piers on the open, downhill side.
Project data
- Project duration
- 12 Months
- Country
- Austria
- Contractors
- Held & Francke Baugeses.mbH
- Structure
- Tunnel
- Type of structure
- Cut-and-cover tunnel
Partially monolithic construction method
- Construction method
- Partially monolithic
- Cross-sectional shape
- Curved/round
- Clear width
- 9.0 m
- Clear height
- 8.06 m
- Formed length of tunnel
- 1,093 m
- Length of concreting section
- 12 m
- Number of casting sections
- 92