Silkyara 'rat miners' volunteer for Nepal tunnel rescue as families await news
On Tuesday, a tunnel under the Annapurna Highway collapsed, trapping a crew of twelve construction workers at a depth of about 30 meters. Within hours, a team of 23 rat miners from the nearby village of Silkyara arrived at the site, offering to assist the official rescue teams. Their unique experience navigating narrow, unstable passages could prove decisive. The development adds a new dimension to a rescue effort already under intense public scrutiny.
What happened: timeline of the Annapurna tunnel incident
The incident occurred at 07:42 a.m. local time on 3 September 2023, when a section of the newly built tunnel near the town of Besisahar gave way under the weight of a concrete slab. According to a police report filed by Inspector Rajendra Shrestha, the collapse created a 12‑meter‑wide opening and trapped a crew of twelve workers, including foreman Suraj Koirala, who were inside the tunnel for routine reinforcement work. Emergency services were dispatched within ten minutes, and the Nepalese Army’s Engineering Corps set up a command post on the site. By 09:15 a.m., the first rescue team had begun to clear debris with hydraulic breakers, but progress was slow due to the fragile surrounding rock. At 11:30 a.m., the Silkyara rat miners—identified by local leader Dorje Lama—arrived with hand‑carved wooden ladders and a portable gas lantern, offering to guide rescuers through the narrow voids they regularly use to harvest bat guano. A small concrete slab, still wedged in the tunnel, was noted by the rescue chief as the most precarious obstacle. The miners’ knowledge of the local geology, honed over generations of extracting guano from rat burrows at elevations above 2,800 meters, is seen as a potential asset. The Nepal Police confirmed that the miners have been formally briefed on safety protocols before being allowed to assist.
Why it matters: broader implications for disaster response in remote Nepal
The involvement of the Silkyara rat miners highlights a growing trend of integrating indigenous expertise into formal emergency operations. First, it underscores the limitations of conventional rescue equipment in rugged, high‑altitude terrain. Heavy machinery often cannot be maneuvered through the narrow, winding shafts that characterize many of Nepal’s mountain tunnels. By tapping into the miners’ intimate knowledge of the subterranean environment, authorities can potentially reduce rescue time and minimize further collapses. Second, the episode brings attention to the socioeconomic role of rat mining in remote villages. The practice, which dates back to the 1970s, provides a seasonal income for families like the Tamangs and Gurungs of Silkyara, who otherwise rely on subsistence farming. Their willingness to assist in a high‑risk operation may foster greater community trust in state institutions, a crucial factor after the 2015 earthquake when many locals felt neglected. Third, the situation may influence future policy on disaster preparedness. If the miners’ contribution proves effective, the Ministry of Home Affairs could formalize a volunteer registry for specialized local workers, ensuring rapid mobilization in future incidents. For ordinary Nepalis, such a development could mean faster, safer rescues, and a clearer pathway for community members to be recognized for their unique skills. Finally, the incident shines a light on the need for improved tunnel safety standards. The collapse has already prompted the Department of Roads to order an audit of all ongoing tunnel projects, a move that could prevent similar tragedies and protect both workers and nearby residents.
“Rescue chief Colonel Anil Gurung told reporters that "the rat miners’ familiarity with these narrow passages is unmatched, and their willingness to help under such dangerous conditions is commendable," emphasizing that their input will be coordinated with the army engineers to avoid any further destabilization of the tunnel.”
What we don’t know yet: unanswered questions and gaps
Despite the optimism surrounding the miners’ involvement, several critical uncertainties remain. First, the structural integrity of the remaining tunnel walls is still unknown; geotechnical surveys scheduled for later today have been delayed by heavy rainfall, which could alter the rock’s stability. Second, the exact health status of the trapped workers is unclear; while a portable medical kit was delivered to the site, no direct communication has been established with the victims, leaving families in a painful limbo. Third, the legal framework governing civilian participation in rescue operations is ambiguous. Nepal’s Disaster Management Act permits volunteer assistance, but it does not specify liability protections for non‑professional rescuers, a point that could become contentious if an accident occurs. Fourth, the miners’ equipment—primarily wooden ladders and lanterns—has not been tested against the possible presence of hazardous gases such as methane, which can accumulate in collapsed tunnels. Finally, the timeline for a successful extraction is still speculative. Rescue officials have projected a window of 48‑72 hours, but this estimate hinges on weather conditions and the ability to safely remove the obstructing concrete slab. Until these variables are clarified, the outcome remains uncertain.
Key Takeaways
- A tunnel collapse near Besisahar on 3 Sept 2023 trapped 12 workers at 30 m depth, prompting a multi‑agency rescue.
- Silkyara’s 23 rat miners offered expertise in navigating narrow passages, bringing local knowledge to the effort.
- Their involvement could reshape Nepal’s disaster response by formalizing community‑based volunteer roles.
- Key uncertainties include tunnel stability, victims’ health status, and legal liability for civilian rescuers.
- Upcoming audits, weather changes, and the deployment of a remote drilling rig will dictate rescue progress.
What to watch: developments over the next 24‑72 hours
The next day will be crucial for several reasons. First, the Department of Roads is expected to release the preliminary findings of its tunnel safety audit, which could either validate the current rescue strategy or prompt a complete overhaul. Second, the Nepalese Army’s Engineering Corps plans to deploy a remote‑controlled drilling rig by evening, a move that will test the coordination between military technology and the rat miners’ manual techniques. Third, weather forecasts from the Nepal Meteorological Department predict intermittent showers and a temperature drop to 8 °C, conditions that could slow both debris removal and the miners’ progress. Fourth, families of the trapped workers, led by Suraj Koirala’s wife, Maya Tamang, are scheduled to meet with Prime Minister Pushpa Kamal Dahal’s liaison office, potentially influencing political pressure on the rescue timeline. Finally, international observers from the International Search and Rescue Advisory Group (INSARAG) will arrive on Thursday to assess the operation and offer technical advice. Monitoring these events will give a clearer picture of whether the rescue can be completed within the projected window or if additional external assistance will be required.
The Silkyara rat miners harvest an average of 1.2 kg of bat guano per night, a product exported to Japan for fertilizer, according to a 2022 study by the Nepal Agricultural Research Council.
The rescue of the twelve trapped workers remains a delicate balance of technology, local skill, and unpredictable mountain weather. As the rat miners from Silkyara work side by side with army engineers, their shared goal is simple: bring the men safely back to their families. For the villagers waiting at the edge of the tunnel, each hour is a blend of hope and anxiety. Whether the operation succeeds or not, the collaboration itself may set a precedent for future emergencies in Nepal’s rugged terrain, reminding us that solutions often emerge from the most unexpected sources.

