||1975 - 1979 |
|Placed into commission
|Length of tunnel
||Drill and blast method|
||Tunnel: cast-in-situ reinforced concrete|
||Far East railway, Berkakit-Tynda section|
Nagorny tunnel is the first Russian railway tunnel headed in permafrost ground. It is situated in the zone of high-temperature permafrost. Seismic activity of the area is 8 points. Preliminary design and design drawings for the tunnel construction were performed by “Lenmetrohyprotrans”.