Gorkha Flood Response (Situation Bulletin) 29 October 2026

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