Hydropower Workers Trapped as Nepal Flood Deaths Top 900

Estimated reading time: 6 minutes · Last updated: 31 August 2026

Nepal floods have left 903 people dead in Nepal and thousands missing as rescuers race to reach workers believed trapped inside hydropower tunnels, a bottleneck in relief and recovery. The country’s disaster agency counted 903 deaths and 4,247 people missing in Nepal, and a private-sector power association said at least 900 workers were unaccounted from 12 hydropower projects, with Mohan Kumar Dangi of the Independent Power Producers’ Association, Nepal (IPPAN) estimating about 500 could be inside tunnels. The humanitarian and infrastructure crisis followed a glacial collapse that sent rock and meltwater downstream. As first reported by The Associated Press, rescuers face mud-choked sites, flooded roads and collapsing access routes.

We are working in search and rescue of the stranded people from hills, settlements and river areas.

Brig. Gen. Raja Ram Basnet, Nepal’s army spokesman

Why hydropower tunnels became life-or-death spaces

The immediate cause of the crisis was a glacial collapse high in the Himalayas that carried rock and melted ice downstream in a destructive surge. Scientists who studied satellite images said the bedrock under a glacier collapsed and part of the glacier fell, producing a rockfall that registered as a magnitude 5.2 seismic event and then swelled the rivers below. That torrent swept away bridges, buildings and riverside installations in Tibet and Nepal and buried valley infrastructure in mud.

Hydropower stations in the affected valleys rely on engineered tunnels to divert and control river water for turbines. These tunnels are typically large access ways, and rescuers and engineers have treated them as places where workers could shelter. Jakob Steiner, a geoscientist at the University of Graz, said the tunnels are large enough for vehicles and that in at least some locations teams have managed to get oxygen to people inside, which has shaped the rescue effort.

KeyPhrase: hydropower tunnels

The human and numerical scale of the disaster

The numbers published by official agencies and sector representatives underline the scale. Nepal’s disaster agency reported 903 deaths in that country and 4,247 people missing, and it specified that 592 of the missing were foreigners. On the Chinese side, authorities reported 16 deaths and 546 missing; Chinese state media said 261 of those missing were foreigners, including more than a hundred Nepalis.

Power-sector reporting has its own toll: the Independent Power Producers’ Association, Nepal (IPPAN) said at least 900 workers were unaccounted from 12 hydropower projects damaged in Rasuwa and Nuwakot districts. Mohan Kumar Dangi, IPPAN’s president, estimated about 500 of the 900 could be inside tunnels. At the Upper Trishuli-1 Hydropower Project in Rasuwa, Dangi said at least 576 were missing and roughly 300 were believed to be trapped in the project’s tunnel.

These figures are the working totals for rescue coordinators and family members trying to locate loved ones and to prioritise where search teams and equipment are dispatched.

How rescuers are operating and what is slowing them

Rescue teams include military units, private teams and international assistance working under difficult conditions. Brig. Gen. Raja Ram Basnet, Nepal’s army spokesman, said ground and air assets are being used and that crews were descending into damaged tunnels to reach workers. At Trishuli-3 Hydropower Project, Basnet said crews were working to descend about 15 meters (50 feet) into a tunnel to reach people believed trapped inside.

Obstacles are practical and immediate: rivers and access roads have been washed away or remain under water, muddy debris has buried lower works, and heavy rain continues to hamper movement. Chinese state broadcaster CCTV showed efforts to repave the road to Gyirong Port at the China–Nepal border, a worksite now under about 2 to 3 meters (6.6 to 9.8 feet) of water in places and described as just over a kilometre (0.62 miles) from the border. Those conditions limit how quickly heavy rescue machinery and supplies can reach the worst-hit valleys.

KeyPhrase: rescue teams

Stories from the valleys and the wider regional impact

Families have mounted their own searches for missing relatives across morgues, relief centres and damaged villages. Maraval Nagappan, who runs a Chennai travel company, travelled to Nepal to find his son, Sathya Narayan, who was among 49 Indian devotees returning from Mount Kailash and was last seen at an immigration complex swept by floodwaters. Surveillance footage captured people scrambling as water surged through the crossing.

Beyond the immediate human toll, the floods have damaged energy nodes that supply tens of thousands of customers in hill districts: workers cleaning a ravaged station in Dhading told reporters the station supplies power to over 20,000 people in the region. Repairing that infrastructure will be a multi-stage task that depends on restoring road and river access, clearing mud and debris from gates and tunnels, and mapping which sections of tunnels and shafts remain stable.

KeyPhrase: Mount Kailash

How the rescue and recovery could play out

The bottom line

The humanitarian emergency from the Himalayan glacial collapse has two linked threads: an urgent search for people trapped in mud-choked hydropower tunnels and a wider recovery challenge of roads, power nodes and river systems. Official tallies — 903 dead in Nepal and thousands missing, plus at least 900 hydropower workers unaccounted from 12 projects — drive immediate priorities for oxygen, extraction and stabilising damaged tunnels. Whether more survivors can be reached will depend on clearing access routes, maintaining air and supply lines into tunnels and whether rain and river flows abate enough to let heavy equipment through.

What to watch

• Watch for updated casualty and missing-person tallies from Nepal’s disaster agency; no date has been set.
• Watch for official confirmation that rescue crews have reached workers inside Upper Trishuli-1 or Trishuli-3 tunnels; no date has been set.