Allocation of work Gotthard Base Tunnel
aerial view of erstfeld area (north portal) in 2009
the contracts awarded in sections:
erstfeld (the 7.7 km (4.8 mi) section erstfeld amsteg), 2 tunnel boring machines (tbm) boring 2 tubes. break-through of east tube between erstfeld , amsteg took place on 15 june 2009. portal area surface-mined.
amsteg (the 11.3 km (7.0 mi) section amsteg north of sedrun), arge agn (strabag , züblin murer) received contract work in sector. on 9 december 2009, amsteg section officially delivered owner fitting-out, civil engineering, construction, concrete , lining work completed in 2010.
sedrun (the 8.6 km (5.3 mi) east tube , 8.7 km (5.4 mi) west tube in section north , south of sedrun), along work performed transco (bilfinger se, implenia, frutiger , impresa pizzarotti). final breakthrough in west tube occurred in march 2011. northbound tubes amsteg sedrun multifunction station (north) handed on railway systems contractor transtec gotthard on 15 september 2011, date specified in construction schedule.
faido (13.4 km (8.3 mi) east tube , 13.6 km (8.5 mi) west tube in section south of sedrun faido), consorzio tat (alpine mayreder bau, csc impresa costruzioni, hochtief , implenia , impregilo).
bodio (15.9 km (9.9 mi) east tube , 15.6 km (9.7 mi) west tube in section faido bodio), work performed consorzio tat (alpine mayreder bau, csc impresa costruzioni, hochtief, implenia , impregilo). civil engineering construction, concrete , lining works completed in 2010.
^ projektbeschrieb (in german). agn strabag. 24 september 2010. retrieved 19 october 2010.
^ structurally complete tunnels of amsteg section handed on . lucerne, switzerland: alptransit gotthard ag. 10 december 2009. retrieved 12 november 2011.
^ gotthard approaches final breakthrough, ceneri starts main drive . lucerne, switzerland: alptransit gotthard ag. 31 march 2010. retrieved 12 november 2011.
^ transco sedrun (in german). transco. archived original on 29 may 2010. retrieved 15 october 2010.
^ booth, martina (29 april 2010). gotthard: titanic tunnel . new civil engineer. emap publishing limited. retrieved 15 july 2015.
^ final breakthrough of longest railway tunnel in world . lucerne, switzerland: alptransit gotthard ag. 15 october 2011. retrieved 12 november 2011.
^ installation of railway systems in north has begun . lucerne, switzerland: alptransit gotthard ag. 2 september 2011. retrieved 12 november 2011.
^ st. barbara celebration 2012 (in german). consorzio tat. archived original on 13 september 2012. retrieved 11 april 2013.
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