 Western entrance | |
| Overview | |
|---|---|
| Line | Koralmbahn |
| Location | Styria/Carinthia (Austria) |
| Coordinates | 46°45′12″N 15°1′52″E / 46.75333°N 15.03111°E |
| Status | under construction |
| Start | Frauental |
| End | Sankt Andrä |
| Operation | |
| Work begun | 2008 |
| Opens | 2026 |
| Traffic | railway |
| Technical | |
| Length | 32.9 km |
| No. of tracks | 2 single-track tunnels |
The Koralm Tunnel is a railway tunnel that is under construction in Austria under the Koralpe mountain range. It forms one section of the 130 km (81 mi)-long Koralm Railway which will link Graz with Klagenfurt.
Once complete, the Koralm Tunnel shall be Austria's longest railway tunnel, possessing a length of 32.9 km (20.4 mi) while running at depths of up to 1,250 m (4,100 ft) below ground.[1][2] It comprises a pair of tunnels running in parallel, each capable of carrying a single railway track, which will be linked together every 500 metres (1,600 ft).
- ^ Fleckl-Ernst, Johannes (May 2010). "Geodätische Herausforderungen beim Projekt "Koralmtunnel". Felsbau: 315–321. ISSN 1866-0134.
- ^ "Koralmbahnreport: Die Drehscheibe im Interview mit Projektleiter DI Dr. Klaus Schneider und ein Bericht von der Andrehfeier im Koralmtunnel" (PDF). Drehscheibe. March 2013. Archived from the original (PDF) on 2015-06-04. Retrieved 2013-08-01.