This is the National Disaster Risk Reduction and Management Authority's (NDRRMA) Rapid Damage and Needs Assessment (RDNA) for the Rasuwa-Bhotekoshi Flood 2026, published in September 2026 under Government of Nepal leadership with support from the National Planning Commission. The report traces the disaster to an ice-and-rock avalanche on 26 August 2026 in the upper Lhende Khola watershed, roughly 20 km upstream of the Rasuwagadhi border, which triggered a debris flow and major flooding down the Bhotekoshi–Trishuli–Narayani river corridor (peak discharge of about 5,850 m³/s at Devghat), affecting Rasuwa, Nuwakot, Dhading, Gorkha, Chitwan, Tanahun, and Nawalparasi. Drawing on government sector submissions, satellite/drone imagery, and census data collected through 3 September 2026 (finalized 10 September), it estimates total disaster effects of roughly US$2.7 billion (US$883 million in economic losses plus asset damage), against total recovery needs of about US$4.77 billion — US$57.7 million for early recovery (0–6 months) and US$4.72 billion for reconstruction beyond six months. Reported impacts include over 7,570 private buildings, 48 public buildings, 18 schools, 7 health facilities, and 47 cultural heritage assets damaged; roughly 8,317 households and 33,000 people affected, with 3,685 people in 37 holding centers at the time of assessment; and major infrastructure losses concentrated in energy (US$889 million), roads (US$146 million), and bridges (US$75 million), alongside damage to irrigation, WASH systems, telecommunications, agriculture, and livestock. The document sets out sector-by-sector methodologies and cost estimates and is intended to guide government recovery planning, prioritization, and resource mobilization, while flagging areas needing further verification or a follow-on Post-Disaster Needs Assessment.