Teesta erosion threatens NH10, officials consider post-monsoon tunnel

Why in news

The Teesta River's erosion and landslides have severely damaged NH10, leading to plans for a tunnel to ensure the stability of Sikkim's critical supply chain.

Background

NH10 connects Sikkim with West Bengal. A landslide on July 7 caused a 250-metre blockage. Officials are evaluating a post-monsoon tunnel to counter Teesta River erosion.

Facts for Prelims

• PlaceNH10: A vital highway connecting Sikkim to West Bengal.
• FactThe July 7 landslide measured approximately 250 metres in length.
• S&TTunneling is being considered as a long-term engineering solution to river erosion and landslide-prone terrain.

For Mains

Q. Discuss the challenges of infrastructure development in the Himalayan region and the importance of resilient connectivity for the socio-economic stability of border states.

Dimensions to cover in your answer

• geological hazards
• supply chain resilience
• climate change impact on infrastructure

Keywords: geological instability · supply chain · resilient infrastructure · connectivity

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