Category Civil Wire

Engineers and site staff present at the tunnel breakthrough stage inside a Himalayan road tunnel.

Shimla Bypass Tunnel (2025): Engineering Judgement and Risk Control in Himalayan Tunnelling

Scope note for engineers This article discusses tunnelling logic, geotechnical behavior, construction-stage decision-making, and risk control practices relevant to Himalayan…...

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Read MoreShimla Bypass Tunnel (2025): Engineering Judgement and Risk Control in Himalayan Tunnelling
Satellite imagery capturing the ash plume from the Hayli Gubbi volcano eruption in Ethiopia after 12,000 years, drifting across the Red Sea toward India. The high-altitude ash cloud entered Indian airspace over Gujarat and Delhi-NCR, posing risks to aviation but showing no measurable impact on surface-level air quality or Delhi’s AQI levels.

Delhi Air Pollution and Ethiopian Volcanic Eruption: Will Hayli Gubbi Ash Worsen India’s Air Quality Crisis? (2025)

On 23 November 2025, Ethiopia’s long-silent Hayli Gubbi volcano erupted for the first time in nearly 12,000 years, sending an…...

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Read MoreDelhi Air Pollution and Ethiopian Volcanic Eruption: Will Hayli Gubbi Ash Worsen India’s Air Quality Crisis? (2025)