Flash flood sweeps away houses and bridges in Nepal's Gorkha district

On October 11, 2026, a dry landslide blocked the Budhi Gandaki River in Nepal's Gorkha district, unleashing a sudden flash flood that swept away over 35 houses, multiple suspension bridges, and a major highway bridge. Authorities deployed helicopters, police, and the Nepal Army to evacuate communities across five districts. While no casualties were reported, the disaster struck a region still recovering from an August 2026 flood that killed 1,457 people.

Budhi Gandaki River flash flood

• ▪No casualties were immediately reported following the October 11, 2026 flash flood in Nepal's Gorkha district
• ▪The October 11, 2026 Budhi Gandaki River flood occurred in the same watershed region where an August 2026 glacial collapse killed 1,457 people and left thousands missing
• ▪A debris-laden flash flood struck the Budhi Gandaki River in Nepal's Gorkha district on October 11, 2026, downstream into the Trishuli River basin

Landslide blockage trigger

• ▪Residents in Chumnubri reported hearing roaring sounds around 4:00 AM on October 11, 2026, suspecting the Syar stream tributary of the Budhi Gandaki River had been temporarily blocked
• ▪Authorities reported that a dry landslide in Chumnubri village above Siuribas blocked the Budhi Gandaki River, triggering the October 11, 2026 downstream flash flood

Houses swept away

• ▪Residents in riverside settlements including Chumling and Lokpa fled early on October 11, 2026 without retrieving their belongings as floodwaters rapidly inundated homes and sheds
• ▪The October 11, 2026 flash flood in the Budhi Gandaki River swept away more than 35 houses across settlements in northern Gorkha, including Salleri, Paiyuka, and Jagat

Bridge destruction

• ▪Floodwaters from the Budhi Gandaki River washed away a highway bridge connecting Gorkha district with the neighboring Dhading district
• ▪The October 11, 2026 flash flood destroyed a suspension bridge connecting wards in Chumnubri-3 and a bridge linking Nyakchet to Philim bazaar

Evacuation operations

• ▪Local authorities in Gorkha district used loudspeakers in riverside communities including Chumling, Lokpa, and Arughat to urge residents and tourists to evacuate to higher ground
• ▪The National Disaster Risk Reduction and Management Authority issued evacuation alerts for riverside settlements across Gorkha, Tanahun, Chitwan, East Nawalparasi, and West Nawalparasi districts on October 11, 2026

Helicopter rescue deployment

• ▪The Nepal Army rescued six people stranded at risk of landslides in Jagat on October 11, 2026
• ▪Mobilized search and rescue personnel from the Nepal Army and Police deployed helicopters on October 11, 2026 for evacuations, monitoring, and relief distribution in Gorkha district

Debatable claims

• ▪Nepal's emergency alert system was effective in preventing casualties during the Gorkha flash flood
• ▪Hydroelectric development on the Budhi Gandaki River poses unacceptable safety risks in landslide-prone mountain zones