Situation Overview:
On 11 October 2026 (25 Asoj 2083), a major debris-laden flood occurred in the Budhi
Gandaki River basin of Gorkha District, following a large ice and debris avalanche in the
upper catchment of Chumnubri Rural Municipality-6. Preliminary technical assessments
indicate that debris accumulated at the confluence of the Ungdilung and Syar streams,
causing temporary river blockages and subsequent outburst-like releases that generated
multiple flood surges downstream. The flood caused extensive damage to settlements,
bridges, hydropower infrastructure, roads, public facilities, and livelihood assets across
northern Gorkha and downstream areas.
According to the latest available information, the flood has affected 146 households, three
hydropower projects under construction, two permanent bridges, one Bailey bridge, six
suspension bridges, three vehicles, and Bikash Primary School in Ghattikhola, Chumnubri-3.
Additionally, six local residents remain still out of contact.