Full Breakdown
Flash Flood in Nepal’s Budhi Gandaki River Sweeps Homes, Bridges, and Hydropower Site
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Core Event
On Oct 11, 2026, a flash flood struck the Budhi Gandaki River in Gorkha district, central Nepal. A landslide near Chumnubri created a temporary dam that breached, sending water, mud and debris downstream. Dozens of houses, several bridges and part of a hydro-electric construction camp were swept away. The National Disaster Risk Reduction and Management Authority (NDRRMA) ordered evacuations along the river corridor and kept the area on alert through the evening.
Background & Context
The Budhi Gandaki is a tributary of the Trishuli River, which suffered a glacier-collapse flood on Aug 26, 2026 that killed more than 1,400 people. The October flood occurred weeks after recovery efforts began, underscoring the region’s vulnerability to mountain hazards.
Data & Statistics
- Housing damage: 35–40 homes swept away.
- Bridge loss: Four to six bridges destroyed, including a highway bridge linking Gorkha with Dhading.
- Hydropower impact: Damage to the construction camp for the 341 MW Budhi Gandaki project.
- Missing persons: At least five unaccounted for (some reports cite ten).
- Rescues: The Nepalese army rescued 49 people, including one foreign national.
Official Statements & Responses
The NDRRMA issued a social-media alert urging residents of six districts to move to safer locations and called for public assistance in rescue operations.
Dharmendra Kumar Mishra, senior Gorkha district official, reiterated the evacuation order for downstream villages.
Dharam Raj Uprety, chief of the NDRRMA, confirmed the loss of the highway bridge and noted a sharp rise in water level early morning.
Prime Minister Balendra Shah posted that the army had deployed air and land units for search-and-rescue, airlifting six people from the Jagat area.
Home Minister Sudan Gurung warned of further flood risk and urged residents to stay alert.
On-the-Ground Reports
Local officials described the event as “very scary.” Residents in Arughat heard loud roaring sounds around 4 a.m. before the surge and fled to higher ground. Shop owner Kamala Duwadi said she and neighbors evacuated after police announcements.
Conflicting Reports & Gaps
- Missing persons: NDRRMA cites five missing; other sources mention ten.
- Cause: Authorities attribute the surge to a landslide-dam breach; a few eyewitnesses suggest an upstream ice-avalanche, but no investigation is complete.
- Damage assessment: Counts of destroyed houses and bridges vary, and the full impact on the hydropower project remains under review.
Verbatim Quotes
- “We have asked villagers living along the river banks downstream to evacuate and remain safe,” — Dharmendra Kumar Mishra
- “The flood looked similar… It was very scary, and it still feels like a nightmare for us,” — local official
What’s Next
The NDRRMA will continue monitoring river levels along the Budhi Gandaki, Trishuli and Narayani corridors and maintain evacuation alerts for the six districts. ICIMOD plans a post-event analysis to refine early-warning systems for landslide-dam breaches. Rescue teams remain on standby, and authorities have pledged additional helicopter sorties to support displaced families and assess infrastructure damage.