A massive glacier collapse along the Nepal-Tibet border has triggered catastrophic flooding, leaving hundreds of workers trapped in blocked hydropower tunnels.. The disaster has resulted in at least 903 deaths and left thousands of people missing across the mountainous region.
The 431.1-megawatt blow to Nepal's power grid
The Nepal Electricity Authority reported that the disaster has crippled a significant portion of the nation's energy infrastructure. Specifically, 11 hydropower stations and one solar power station—representing roughly 10 percent of the country's total installed electricity generation capacity—have ceased operations. This immediate loss of 431.1 megawatts is compounded by damage to 15 other power projects currently under construction,which have a planned capacity of 470 megawatts.
This sudden loss of power capacity threatens the stability of the regional grid during a period of intense humanitarian crisis. The destruction of these facilities, which were intended to bolster Nepal's energy independence, represents a massive setback for the country's long-term development goals.
Specialized teams navigate the Upper Trishuli and Chilime tunnels
International rescue efforts are currently concentrated on several critical sites, including the Upper Trishuli 3A, Upper Trishuli-1, and Chilime Hydro tunnels. As reported by the source, specialized rescue teams from India, China, and South Korea have joined the Nepal Army in a grueling effort to clear mud, rock, and sediment. At the Upper Trishuli-1 site, a Chinese team successfully entered approximately 300 meters into a tunnel but recovered only one body. Meanwhile, at the Chilime Hydro tunnel, Indian teams reached 100 meters before finding the passage blocked by debris, where they recovered two bodies.
Rescuers are employing a variety of heavy machinery and technical tactics to penetrate the blockages. At the Upper Trishuli 3A site, teams have used drilling and excavator machines to dig through mud-swamped sections, while Nepali Home Minister Sudan Gurung noted that teams have deployed pipes to attempt to send air through small openings to reach those trapped inside.
A massive toll of 933 workers missing in hydropower sites
The scale of the human tragedy is underscored by the fact that 933 people are missing specifically from hydropower projects in the flood-affected region. This figure is part of a much larger catastrophe that has left 4,247 people missing in total, according to Nepali authorities. The Red Cross estimates that more than 90,000 people have been affected by the disaster , which China has linked to the broader effects of climate change.
The impact extends across the border into China, where authorities in Gyirong County reported 16 deaths and 546 missing persons. Furthermore, Beijing has reported that 261 foreign nationals from 23 different countres are currently unaccounted for in the Tibet region near the Nepal border.
The silence inside the Upper Trishuli 3A tunnels
Despite the deployment of nearly 21,000 security personnel, the fate of the hundreds of workers trapped in the tunnels remains a harrowing unknown. Prime Minister Balendra Shah reported that when rescue members descended into the Upper Trishuli 3A section using ropes and called out to those inside, there was no response. It remains unverified whether the air being pumped into the tunnels will be sufficient to sustain life or if the workers are still alive beneath the debris.
Significant questions remain regarding the total extent of the devastation and the safety of the rescue operations. Nepal Army spokesman Raja Ram Basnet stated that the massive amount of deposited debris poses a major challenge to opening the tunnels, making a complete assessment of the damage and the number of survivors extremely difficult to compile.
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