Hundreds of hydropower workers in Nepal are feared trapped in mud-choked tunnels as rescuers fight rising water, unstable debris, and time.
Story Snapshot
- Nepal deployed about 10,000 troops and heavy equipment to open blocked tunnels.
- Officials say the main focus is reaching people believed trapped across multiple projects.
- Rescuers cleared one tunnel entrance, marking a key breakthrough.
- Reports confirm hundreds already rescued while searches continue for many more.
Rescue Command Pivots To Tunnels After Deadly Flooding
Nepal’s government said rescue operations are underway at five hydropower projects after floods blocked access tunnels. Officials said the main priority is to reach workers believed to be trapped underground and to restore safe passages. Nepal’s rescue teams are working with specialists from India and China. Crews are using controlled blasts, excavators, pumps, and search lights to cut through mud and debris. Authorities are moving equipment by air where roads are washed out.
The Nepali Army reported an early win on Sunday. Soldiers and engineers reached one tunnel entrance and began clearing the blockage. That step opened a path for deeper searches and deliveries of air, light, and supplies. Commanders said teams must work slowly to avoid new collapses. The terrain, fast water, and weak rock make every move risky. Leaders said more openings are planned as machinery arrives and weather allows safe work.
Scale Of The Emergency And Conflicting Headcounts
Officials and media gave different numbers for how many people remain underground. Reuters cited figures that rescue teams are trying to reach hundreds of workers across 11 hydropower sites. Government ministries also reported that more than 100 people were still inside tunnels at some projects. These totals changed during the weekend as lists were checked and new rescues occurred. Authorities warned that counts may shift as contact improves.
Amid the chaos, some rescues have been confirmed. Local reporting said army teams pulled 350 workers and residents alive from the Upper Trishuli project tunnel. That operation showed that pockets of survivors can exist even in flooded, mud-filled spaces. Commanders said searches will continue for those still missing. Families gathered near sites are waiting for updates as teams drill and pump through the night.
How Crews Work In Hazardous Himalayan Tunnels
Army and engineering teams face classic Himalayan tunnel hazards. Steep valleys funnel water and debris. Weak rock and fault lines can shift under pressure. Floods turn tunnels into long, dark chambers that hold mud, silt, and low oxygen. Rescuers use staged blasting to break boulders without causing collapse. Pumps and excavators clear wet sediment to restore footing and sight lines. Air monitors and lighting help teams spot voids where survivors may have sheltered.
Nepal rescue crews are working to reach hundreds of workers trapped inside flood-blocked hydropower tunnels as mountain guides join the operation. #NepalRescue #NepalNews #NepalBreakingNews #NepalFloods #Nepal pic.twitter.com/LE0SBoFNvk
— NewsX World (@NewsX) August 31, 2026
Disaster managers said the national response includes airlifts of heavy gear to remote sites. China and India sent specialists with mountain and tunnel experience. Planners said each portal needs a custom plan due to ground conditions and distance to the work face. Officers stressed speed and caution in equal measure. Any rush could trigger sidewall failure or new flooding inside the works. Weather forecasts and river levels shape each day’s task list.
Why This Matters Far Beyond Nepal
This crisis highlights a hard truth about modern infrastructure in the Himalayas. Countries across the region are building run-of-river dams and long tunnels to meet energy needs. These projects sit in landscapes prone to landslides, outburst floods, and unstable rock. Research on Nepal’s hydropower sector has flagged subsurface geology, force majeure events, and tunnel stability as top risks. The current emergency fits that risk profile and shows why safety planning matters.
Sources:
kathmandupost.com, bbc.com, tbsnews.net, aninews.in



