Description Gotthard Base Tunnel

the alps influence european climate – , of switzerland in particular – , there can substantially different weather conditions @ each end of gbt, described ticinese architect mario botta: light changes @ gotthard: of mediterranean sea not same of continent, of central lands, of europe far away sea. on average, temperature 2 to 3 °c (4–5 °f) higher on south side north side, on days, temperature differences on 10 °c (18 °f).

the north portal lies in north of municipality of erstfeld @ elevation of 460 metres (1,510 ft), east of reuss. there, tunnel penetrates western slopes of bälmeten , chli windgällen (although marginally) before passing below valley of chärstelenbach, creek in maderanertal. there, tunnel runs parallel small valley of etzli, below witenalpstock. main crest of glarus alps, watershed between reuss , anterior rhine, crossed below chrüzlistock, crest having elevation of 2,700 metres (8,900 ft) @ point. crest , border, tunnel runs parallel small valley of river strem (val strem) before passing below sedrun , anterior rhine. bottom of valley, tunnel proceeds towards valley of rein da nalps (val nalps) , passes east of lai da nalps, before crossing gannaretsch range below western summit of piz vatgira (2,981 metres (9,780 ft)). deepest point of tunnel, rock layer of 2,450 metres (8,040 ft) above it. tunnel passes below valley of rein da medel (val medel) , west of lai da sontga maria. after few kilometres tunnel crosses watershed between anterior rhine , ticino, north of pizzo dell uomo (2,525 metres (8,284 ft)). point corresponds main chain of alps, , main drainage divide between rhine , po. few kilometres, tunnel passes below 2 western tributaries of brenno in valle santa maria before crossing last range, west of passo predèlp (about 2,500 metres (8,200 ft)) , east of faido. follows eastern slopes of large valle leventina, valley of ticino, 18 kilometres (11 mi) south portal @ bodio, @ elevation of 312 metres (1,024 ft), 3 kilometres (1.9 mi) before biasca, brenno converges ticino.

the closest railway stations portals altdorf , biasca. first regularly served railway stations on base line (as of 2016/17) of arth-goldau (schwyz), railway node links lucerne , zürich, , bellinzona (the gate of ticino ), links locarno, luino , lugano (via monte ceneri rail tunnel). journey arth-goldau bellinzona takes not more hour. station of altdorf planned served 2021. there have been talks of using of biasca. travel between altdorf , biasca last less 25 minutes.

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