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Bleßberg Tunnel
Facts and figures
| Tunnel length: | 8.314 m |
| Headroom: | 8,23 m |
| Clear width: | 13,64 m |
| Minimum depth below the surface: | 6 m |
| Maximum depth below the surface: | 330 m |
| Emergency exit: | 8 |
| Excavated cross-section of main tunnel tube: | approx. 130 m2 |
| Clear cross-section - after installation of inner skin above top of rail: | 92 m2 |
| Construction method: | as in mining |
At 8,314 metres, the Bleßberg Tunnel is the longest on the new Ebensfeld–Erfurt–Leipzig/Halle line. With a maximum depth below the surface of 330 metres, the tunnel passes under the main crest of the Thuringian Forest range between Truckenthal and Goldisthal. The famous Rennsteig hiking trail is 235 metres above the tunnel.
The tunnel is being built in two sections. For the 4.6 kilometre southern section, tunnelling started from an intermediate point near Stelzen in 2005. It runs for about 965 metres into the mountain from the side. From its end, tunnelling started for the main tunnel for 2 kilometres to the south portal as well as to the north. In a second stage, tunnelling is also proceeding from the north. To provide environmentally friendly access to the north portal, a further section of line, 5 kilometres in length, is being built.
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