World longest tunnel | World’s longest high-altitude tunnel | Shinku la tunnel

World longest tunnel | World’s longest high-altitude tunnel | Shinku la tunnel
Amid the heightened border tension with both China and Pakistan in the Himalayas, road infrastructure projects have been given a push with completion of a marvel of engineering motorways — the Rohtang Pass highway tunnel.
The Centre has set the ball rolling for the construction of another high-altitude tunnel under the 16,730-ft-high Shinku La (pass) in Himachal Pradesh.
The National Highways and Infrastructure Development Corporation Limited (NHIDCL) under the ministry of road, transport and highways has speeded up the detailed project report (DPR) work on the 13.5-km Shinku La Tunnel connecting the Union Territory of Ladakh and tribal Lahaul and Spiti district of Himachal Pradesh. Though Shinku La has no glacier, it is prone to avalanches during the snow season that hampers vehicular movement.
Three years ago, Border Roads Organisation (BRO) completed the 39.6 km stretch connecting Lahaul valley with Zanskar. The stretch connecting Darcha with Shinku La drastically reduces the distance between Manali and Leh.
The road is not only of strategic importance as it provides easier access areas on the Indo-China border but also comes as a relief for the 15-odd villages in Zanskar valley where residents have to walk for five to six days to either reach Leh or Manali.
The BRO has already conducted feasibility studies to bore a tunnel under the 11,575-ft Zoji La connecting Srinagar and Leh. Zoji La is the second highest pass after Fotu La on the Srinagar-Leh highway, which often remains closed during winter.

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