Construction of New Kuznetsovsk Tunnel in Komsomolsk-na-Amure - Sovetskaya Gavan section of Far East Railway Line.
Start of construction – 2008, completion of construction – 2013.
The new tunnel is 3,890-meters long. The haulage and drainage gallery is 3,911-meters long.
Scope of Operations:
- new tunnel construction;
- haulage and drainage gallery construction;
- construction of railway approach lines;
- building a parallel service motorway (17.6 km) and entry-to-entry service motorway (11.5 km);
- building 17 bridges of a total length of 900 meters.
The gallery was driven by 4.3-meter diameter Robbins DS 1413-301 Tunnel Boring Machine, and the work was completed in December 2009. The main tunnel was driven using 9.5-meter diameter Lovat RME-375 SE Tunnel Boring Machine, and the work was completed in June 2011.