Landslide Threat Blocks Chaulani River, Raising Flood Fears in Darchula, Nepal

In the early hours of September 5, a massive chunk of earth and rock tore down the slopes of Bhattar in Api Himal Rural Municipality, spilling into the Chaulani River. The landslide, which officials say is still being assessed, has blocked the river’s flow only partially, creating a precarious dam that could give way at any moment.

Local authorities were quick to sound the alarm. The Darchula district administration warned residents downstream that a sudden breach could trigger flash floods, urging families to keep essential supplies handy and to stay tuned to official updates. "We cannot be complacent," said Sudurpaschim Chief Minister Khagraj Bhatta, who has ordered security forces to remain on high alert.

Security personnel have been dispatched to vulnerable hamlets along the riverbanks, knocking on doors, distributing leaflets, and reminding people to move to higher ground if water levels rise. In addition, emergency contact numbers for flood‑related assistance have been published on local radio and social media – a small but vital lifeline in these remote hills.

The Armed Police Force reported that, for now, the Chaulani—also known as the Chamelia—continues to flow at a normal level. Nevertheless, troops from the Nepal Chameliya Hydropower Security Base in Balanch are keeping a watchful eye on the situation, ready to sound another warning if the river’s pressure builds.

Geographically, the Chaulani springs from the lofty Api Himal range before merging with the Mahakali River, the waterway that doubles as part of the Nepal‑India border. Its partially blocked state adds a fresh twist to a region still grappling with the aftermath of the massive August 2026 floods, which left thousands displaced and caused extensive damage across western Nepal.

Rainfall forecasts for the coming days suggest another bout of heavy showers, a scenario that could exacerbate the already unstable riverbed. "If more rain falls, the risk of the dam collapsing goes up dramatically," warned a local engineer who chose to stay anonymous.

While rescue and recovery teams are still busy rebuilding homes and clearing debris from previous floods, this new threat has reminded everyone that nature’s fury can be both sudden and relentless. Communities are therefore being urged to stay vigilant, keep emergency kits ready, and follow any instructions from the district administration.

In short, the landslide may be localized, but its potential consequences ripple far beyond the immediate site—underscoring once again how fragile life in Nepal’s far‑western hills can be when the mountains move.