Manaslu Flood has recently caused a threat to many lives and property in Nepal.
It has destroyed the houses, bridges, and infrastructure that had been connected to many hydropower projects in Nepal's Gorkha district.
The Manslu flood disaster trapped many settlements in Chumnubri and Dharche rural municipalities on Sunday, October 11, 2026. It disrupted local transportation and raised concerns about communities that had been living there for many years.
As per the reports, the landslide may have blocked a river or stream before the accumulated water broke through, and then it led to a powerful surge downstream.
However, authorities are still investigating the exact cause of how the flood initially started.
According to The Kathmandu Post, there were 35 to 40 houses that were swept away in the places of Jagat Bagar, Salleri, and Ghattikhola in Chumnubri Rural Municipality in Gorkha District.
The Kathmandu Post is one of Nepal’s leading English-language daily newspapers that reports on national news, politics, society, business, and current events.
There are several bridges that has also been destroyed, while a hydropower construction camp and equipment were also damaged.
Note : Five people were reported missing in the newspaper's latest account. The number and circumstances of those unaccounted for are still under investigation.
The National Disaster Risk Reduction and Management Authority (NDRRMA) issued warnings to people living along the Budhi Gandaki River and other connected waterways.
The authorities have also urged residents in downstream areas to move to safer locations as the floodwater carried mud, gravel and debris. There are many rescue teams, including the Nepali Army and police, that have been responding to such emergency situations.
The army rescued six people from Jagat after landslides put their lives at risk. Meanwhile, 18 workers at a nearby hydropower project managed to escape safely.
The disaster has also raised important concerns for international trekkers and mountaineering teams that had plans to visit the Manaslu region during Nepal's peak trekking season.
The region's trails, bridges and riverside settlements are risky when floods and landslides disrupt access to remote mountain communities.
Important update: The figures above are preliminary reports published on October 11, 2026. The number of missing people, the full extent of the damage, and the status of individual trekking routes may change as official assessments continue.
Where is Manaslu located in Nepal?
Manaslu is located in northern Gorkha district in Gandaki Province, close to Nepal's border with Tibet. Mount Manaslu rises to 8,163 metres above sea level, making it the eighth-highest mountain in the world.
The mountain lies within the Manaslu Conservation Area in Nepal. The Manaslu Conservation Area in Nepal is a protected region known for its mountain landscapes, traditional settlements, forests and diverse wildlife.
The Budhi Gandaki River flows through the surrounding valleys of the Manaslu Region. It connects remote communities and forms part of the landscape crossed by the Manaslu Circuit Trek.
The region is a major destination for trekkers, climbers, and travellers who want a better mountain experience than some of Nepal's busier trekking areas like Annapurna Base Camp and Everest Base Camp.
Why Is the Manaslu Region Famous in Nepal?
The Manaslu Circuit Trek takes trekkers through forests, glacial valleys, traditional settlements, and high mountain landscapes around Mount Manaslu. Mount Manaslu is also the eighth-highest peak in the world.
This Manaslu is one of the most famous destinations for its stunning Himalayan views, remote mountain villages, rich Tibetan Buddhist culture, and the challenging Larkya La Pass.
You can see below what the Manaslu destination has to offer you:
Mount Manaslu: At 8,163 metres, it is one of the world's highest mountains. This is also a major place for high-altitude mountaineering.
Manaslu Circuit Trek: The Manaslu Circuit route circles the mountain through deep valleys, mountain villages, forests, and high-altitude landscapes.
Larkya La Pass: Larkya La Pass is a high mountain pass that is approximately 5,106 metres above sea level. This is one of the most demanding and memorable sections of the Manaslu Circuit Trek.
Tibetan-influenced culture: Villages in the upper region of the Manaslu Circuit Trek preserve different traditions, monasteries, prayer flags, and Buddhist cultural practices.
Manaslu Conservation Area: The protected region supports Himalayan wildlife and varied ecosystems, from subtropical forests to alpine terrain.
Remote mountain settlements: Places such as Namrung, Samagaun, and Samdo provide insight into life in the high Himalayas.
Mountaineering and adventure tourism: Manaslu attracts international climbing expeditions, especially during the spring and autumn climbing seasons.
The same remote geography that makes Manaslu attractive to visitors also creates serious challenges during natural disasters.
Many settlements depend on a limited number of footbridges, narrow trails, and river crossings. When a bridge is swept away, or a trail collapses, the local people and the travellers can lose access to food, medical services, communication, and evacuation routes.
What Caused the Manaslu Flash Flood in Nepal?
The government authorities have not yet confirmed what caused the flash flood on October 11. However, early reports suggest that a possible landslide temporarily blocked a river or side stream in the upper Budhi Gandaki hydrological area.
According to OnlineKhabar, the National Disaster Risk Reduction and Management Authority said that there was no recorded rainfall in the upper catchment at the time of the initial judgment.
Authorities therefore considered the possibility that a landslide had blocked the watercourse and that the temporary natural dam later broke.
Note : A flood of this kind can develop even without heavy rain falling directly over the affected village.
How a Landslide Can Trigger a Flash Flood in Nepal?
A landslide blocks the watercourse. Soil, rocks, and debris fall into a river or stream, restricting its normal flow.
Water builds up behind the blockage. The temporary barrier creates a natural reservoir, sometimes without being visible to communities downstream.
The barrier weakens or breaks. Pressure from accumulated water can cause the blockage to fail. A sudden surge travels downstream. Water mixed with mud, stones, and debris can move rapidly through narrow valleys.
Settlements and infrastructure are struck. Bridges, houses, riverside buildings and roads can be damaged or swept away.
This sequence is a plausible explanation for the Manaslu disaster, not a confirmed reconstruction of every event. The final cause must be established by the relevant authorities.
The risk is particularly serious in steep Himalayan valleys, where narrow river channels can concentrate floodwater and debris. Communities downstream may have little time to respond if a natural dam collapses without warning.
The incident highlights the need for stronger monitoring of landslide-prone river systems, reliable early-warning systems and evacuation plans for isolated mountain settlements.
What Has Been Destroyed by the Budhi Gandaki Flood?
The flash flood has damaged homes, bridges, roads and hydropower infrastructure in several parts of Gorkha district. Initial reports indicate that the destruction extends beyond one settlement, affecting connections between communities on both sides of the river.
The full financial cost has not yet been established.
Around 35 to 40 Houses Swept Away
According to The Kathmandu Post, approximately 35 to 40 houses were swept away in Jagat Bagar, Salleri and Ghattikhola in Chumnubri Rural Municipality.
Other preliminary reports describe additional damage in Sirdibas and Machhakhola, where floodwater entered houses and sheds. The Gandaki Province Ministry of Health also reported that 20 to 22 houses in Salleri, Dharche Rural Municipality, were at risk.
These figures should not be added together as if they represent separate confirmed losses. The reports cover different settlements and stages of assessment, and the final number of damaged or destroyed homes remains uncertain.
For affected families, losing a house can mean losing food supplies, clothing, documents, household belongings, and the savings invested in building a home. Families may also be separated during evacuation, especially when floodwater rises quickly at night or in the early morning.
Several Bridges Destroyed
The flood swept away multiple bridges that connected villages and supported daily travel.
Reported damage includes:
- The suspension footbridge connecting Nyakchet and Sirdibas.
- The suspension bridge connecting Machhakhola and Kerauja.
- The steel bridge at Soti, linking wards 2 and 3 of Arughat Rural Municipality.
- A section of the bridge connecting Arughat in Gorkha with Dhading district.
- Damage to another bridge linking Nyakchet and Philim Bazaar, according to reporting on the incident.
Note: The Gandaki Province Ministry of Health's preliminary assessment also recorded the loss of an old suspension bridge between Nyakchet and Sirdibas and the bridge between Machhakhola and Kerauja.
Bridge destruction is particularly serious in remote mountain areas. Residents may need to walk long distances to reach schools, health posts, markets and government offices. Emergency teams can also face delays when roads and footbridges are no longer usable.
The loss of the bridge section at Nayapul near Arughat has also left the road connection blocked, according to the preliminary provincial report.
Hydropower Infrastructure Damaged
The flood also damaged construction infrastructure and equipment associated with hydropower development in the region.
Reports from The Kathmandu Post and OnlineKhabar describe damage to a hydropower construction camp, equipment and a powerhouse under construction. A number of nearby houses were also reported destroyed or at risk.
A complete financial estimate of the damage to the project has not yet been released. It is therefore too early to state the total economic loss or the cost of repairs.
Hydropower infrastructure is important in remote settlements where local electricity supplies support lighting, communication and other daily services. Damage to power facilities can compound the effects of destroyed bridges and disrupted roads.
People Reported Missing as Rescue Operations Continue
The situation remains especially concerning for people who may have been caught near the river when the flood struck.
The Kathmandu Post reported five people missing in connection with the incident, including people believed to have been staying in a shed near the Ungilung River in Chumchet. Four to five herders travelling from Sirdibas towards Chumling were also reported out of contact in the same report.
These reports do not necessarily refer to the same group of people, and their status requires official confirmation. The initial reports did not confirm any deaths or injuries, but the missing-person reports mean that the human toll remains uncertain.
The Nepali Army rescued six people from Jagat, while 18 workers at a hydropower project reportedly reached safety. Search and rescue teams have been deployed as authorities continue to assess the situation.
Families awaiting information about missing relatives need clear, regular updates from rescue authorities. Officials should avoid declaring people safe or deceased until there is reliable information.
Downstream Communities Face Further Risk
The danger is not limited to the places where houses and bridges have already been damaged.
The Budhi Gandaki River flows downstream towards Arughat and joins the wider Trishuli River system. Floodwater carrying silt, gravel and debris can threaten additional settlements as it moves through the valley.
The NDRRMA warned people living along the riverbanks to remain alert. The Department of Hydrology and Meteorology also issued warnings through SMS messages to communities in potentially affected areas.
Residents in riverside settlements should follow official evacuation instructions and avoid returning home until local authorities confirm that the danger has passed.
How Is the Government Handling the Flood Situation in Manaslu Region?
The government response has focused on evacuation warnings, rescue operations, monitoring river conditions, and preparing medical teams.
As of October 11, the situation was still developing. A full damage assessment, the final number of missing people, and a complete recovery budget had not yet been established.
Evacuation Warnings for Vulnerable Settlements
The National Disaster Risk Reduction and Management Authority urged residents living along the Budhi Gandaki River to move to safer places and remain alert.
Warnings covered communities potentially affected along the river corridor, including areas around Sirdibas, Jagat, Yari, Tatopani, Machhakhola, Soti, Aarukhet and Arughat.
The Department of Hydrology and Meteorology's Flood Forecasting Division also sent SMS alerts to residents along the riverbanks. Such alerts are important because floodwater from a blocked river can arrive with little warning.
Authorities must continue communicating with communities that have limited mobile coverage or electricity. Local representatives, police, community groups, and radio stations can help relay evacuation messages when digital communication fails.
Army and Police Rescue Operations
The Nepali Army and police have been involved in emergency response efforts. The army rescued six people from Jagat, where landslide danger threatened their safety.
The reported escape of 18 hydropower project workers also prevented further immediate danger to those workers.
Rescue operations in remote mountain valleys require careful coordination. Teams must assess river levels, unstable slopes, damaged bridges and possible helicopter landing areas before moving into dangerous locations.
The priority should remain the safety of residents, missing people, rescue workers and travellers who may be stranded.
Medical Teams Placed on Standby
The Gandaki Province Ministry of Health reported that district-level Rapid Response Teams in Gorkha, Lamjung and Tanahun, along with Emergency Medical Teams at provincial hospitals, had been placed on standby.
The ministry also said that health institutions in Philim, Salleri, Jagat and Machhikhola were at lower risk because they were situated at higher elevations.
Medical readiness is essential after a flood because survivors may need emergency treatment for injuries, exposure, dehydration and other conditions. Displaced families may also require clean drinking water, sanitation facilities, essential medicines, and temporary shelter.
The next stage of the response should include checking whether health facilities remain accessible and whether medical supplies can reach communities cut off by damaged bridges.
Damage Assessment and Restoration of Access
Authorities must now establish the full extent of the damage, identify people who remain missing, assess homes and public infrastructure, and determine which settlements need immediate assistance.
The loss of bridges and road connections makes this task more difficult. Emergency teams may need alternative foot routes, helicopters or other carefully assessed access methods.
Restoration should begin only after engineers and local authorities determine that the affected riverbanks and structures are safe. Reopening a crossing without checking its stability could put residents and rescue workers at further risk.
Stronger Early-Warning Systems Are Needed
The disaster has renewed concerns about whether remote mountain communities have enough warning before a sudden flood reaches them.
A report published by The Rising Nepal described young people staging a fast-unto-death protest at Mount Manaslu base camp to demand government action on a flood-warning system. The demand highlights the need for better monitoring and communication in the region.
A more effective system could combine river-level monitoring, landslide detection, rainfall data, community sirens, mobile alerts, and clear evacuation procedures. It should also include routine testing so that residents know what to do when an alert arrives.
For the long term, the government should consider hazard mapping, safer bridge designs, emergency shelters, resilient communication systems, and support for communities whose livelihoods depend on mountain tourism.
These are important priorities for recovery and disaster preparedness. They should not be mistaken for measures already completed by the government.
How Can Flood Victims Be Supported Mentally and Emotionally?
Recovering from a flash flood involves more than rebuilding houses and bridges. People who have lost family members, homes, belongings, or their source of income may experience deep emotional distress.
Some may also struggle with uncertainty while waiting for news about missing relatives.
Mental health support should therefore be included in the emergency response, alongside food, shelter, medical care and financial assistance.
Provide Immediate Psychological First Aid
Trained health workers, counsellors and community support workers should offer psychological first aid to survivors.
This means listening without pressure, helping people feel safe, identifying urgent needs and connecting them with practical support. Survivors should be allowed to describe their experiences if they wish, but they should not be forced to discuss traumatic events.
Officials and aid workers should use calm, clear language and explain what is known, what remains uncertain, and where people can receive help.
Help Families Waiting for News
Uncertainty about missing relatives can be extremely distressing. Families need a reliable way to receive updates from rescue teams and local authorities.
A designated information centre or contact person could help families check reports, register missing relatives, and receive verified updates. Information should be shared with care, respecting the privacy of affected people.
Authorities should also explain the process for receiving assistance and reporting missing family members. This can reduce confusion during an already difficult period.
Restore Safety and Daily Routines
Temporary shelters should offer more than a place to sleep. Families need safe drinking water, nutritious food, toilets, warm clothing, privacy, and access to medical care.
Where possible, families should stay together. Children should have safe spaces to play and learn, while older people and people with disabilities may need additional assistance.
Restoring familiar routines can help survivors regain a sense of stability. Community activities, school support and opportunities to reconnect with neighbours can also make recovery easier.
Train Local People to Recognise Distress
Local health workers, teachers, community leaders and volunteers can help identify people who need additional support.
Signs of serious distress may include persistent sleep problems, panic, withdrawal from others, difficulty carrying out daily activities or overwhelming grief. These reactions do not automatically mean someone has a mental health disorder, but they may indicate a need for professional help.
People experiencing severe or persistent distress should be offered confidential assessment and appropriate mental health care. Anyone at immediate risk of harming themselves or others needs urgent professional assistance.
Provide Long-Term Support, Not Just Emergency Relief
Emotional recovery may take longer than the initial rescue and rebuilding period. Some survivors may begin to struggle after temporary shelters close or public attention moves elsewhere.
Local governments and health services should arrange follow-up support, including counselling referrals, community-based care and assistance for families facing financial hardship.
Compensation, housing support and livelihood recovery also matter. Emotional distress can become harder to manage when people have no secure place to live, cannot return to work or are unsure how to support their children.
The goal should be to help survivors regain safety, dignity, social connection and control over their daily lives without expecting them to recover on a fixed timetable.
What Should Trekkers Know Before Travelling to Manaslu?
The Manaslu Circuit Trek is popular during autumn, but a scheduled trip should never take priority over safety. The October 11 flood has affected homes, bridges and infrastructure in the wider region, making it essential to verify current conditions before travelling.
Earlier in September, floods in the Budhi Gandaki and Therang rivers also damaged bridges and hydropower structures around Namrung. The Gorkha District Administration Office suspended travel on the Manaslu and Larke Pass trekking routes at that time. Nepal News reported that hundreds of trekkers were affected by the disruption. Source: Nepal News.
The Nepal Tourism Board later reported on September 11 that the previously affected section around Namrung had been restored to a condition suitable for trekking and that the earlier restriction had been lifted.
That notice referred to the September incident, however, and must not be treated as confirmation that the route is safe after the new October 11 flood. Source: Nepal Tourism Board.
Trekking Safety Tips for Manaslu
Check official route notices before departure.
Contact the District Administration Office in Gorkha, the Nepal Tourism Board, your trekking agency, and your local guide. Ask specifically whether your intended route is open after the October 11 flood.
Postpone your trek if authorities advise against travel.
Do not enter a closed route or continue towards a damaged bridge because you have already paid for accommodation, permits or transport. Ask your operator about rescheduling, alternative itineraries and applicable cancellation terms.
Never cross a flooded river on foot.
Fast-moving water can knock a person off their feet, even when it appears shallow. Do not attempt to cross a river on a damaged bridge, an improvised rope crossing, or a route that has not been confirmed safe.
Stay away from riverbanks and fresh landslides.
Floodwater can rise suddenly, and slopes weakened by erosion may collapse without much warning. If you hear a loud rumble, notice unusual water movement, or receive an evacuation alert, move to safer ground away from the river channel.
Keep in contact with your guide and trekking agency.
Your guide should monitor local conditions and communicate with authorities and communities along the route. Travellers should share their itinerary, accommodation details, and emergency contact information with someone outside the trekking group.
Carry essential supplies.
Pack a first-aid kit, personal medicines, warm layers, waterproof clothing, a headlamp, a power bank and some extra food. A satellite communication device may be useful in remote areas with limited mobile coverage. These supplies are a backup, not a reason to enter an unsafe area.
Prepare for delays and changes.
Damaged roads and bridges may disrupt transport, accommodation, and helicopter access. Keep extra time in your itinerary and enough funds for unexpected overnight stays or alternative transport.
Follow instructions from local authorities.
If officials order an evacuation or suspend trekking, follow their instructions promptly. Do not rely solely on social media videos or reports from other travellers, as conditions can vary between locations.
How Should Travellers Reach or Leave the Manaslu Region Safely?
The Manaslu Circuit normally begins with overland travel from Kathmandu towards the Gorkha region, followed by a trek through the Budhi Gandaki valley. However, flood damage can make the usual approach unreliable.
Travellers should follow these steps before setting out:
Confirm the road conditions: Check whether the road to your starting point is open and whether bridges along the route are usable.
Verify the trekking trail: Ask about the specific sections affected by the flood, not just whether the wider Manaslu region is open.
Use registered, experienced operators: A reliable operator should communicate with local authorities and provide clear advice about postponements or changes.
Avoid unofficial detours: Do not take unfamiliar paths across unstable slopes or use damaged bridges to stay on schedule.
Keep emergency contacts accessible: Save your guide's number, your agency's contact details, local police contacts, and available emergency coordination numbers offline.
Inform family or friends: Share your itinerary and agree on when you will check in.
Reconsider helicopter travel carefully: A helicopter is not a guaranteed escape route. Weather, visibility, landing conditions, and aviation safety may prevent a flight. Any evacuation should be coordinated through authorised operators and emergency services.
If you are already on the trail, stay with your guide and follow official instructions. If the route ahead is blocked, do not attempt to cross the damaged section independently. Wait in a safe location and coordinate your next move with local authorities.
Travellers should also understand that a trekking route may be technically open while particular sections remain dangerous. Conditions can change after fresh rain, landslides or rising river levels.
What Does the Flood Mean for Nepal's Trekking Industry?
Manaslu is an important destination for local guides, porters, lodge owners, transport providers and other tourism workers. A major flood can interrupt this source of income just as the autumn trekking season is underway.
When bridges are destroyed, tourism workers may lose access to employment, while lodges may struggle to receive supplies or accommodate visitors. Trekkers can also face unexpected costs if their itineraries are delayed or cancelled.
The immediate priority must be protecting lives and supporting affected communities. Once authorities confirm that routes are safe, tourism businesses can help by communicating accurate updates, offering flexible arrangements and avoiding pressure on travellers to continue through unsafe areas.
Travel operators should also coordinate with local communities when assessing route conditions. Residents often have valuable knowledge of damaged crossings, changing river behaviour and access problems that may not yet appear in official notices.
In the longer term, the disaster underlines the need for stronger bridges, better emergency communications, flood monitoring and clear procedures for suspending and reopening trekking routes.
Conclusion
The October 11, 2026, flash flood in the Budhi Gandaki River has caused serious damage in Gorkha's Chumnubri and Dharche rural municipalities.
Preliminary reports indicate that around 35 to 40 houses and several bridges were swept away, hydropower infrastructure was damaged, and people were reported missing as rescue operations continued.
Authorities have issued warnings, carried out rescues, and placed medical response teams on standby. However, the full damage assessment and the status of missing people remain uncertain.
The disaster is a reminder that remote Himalayan communities face serious risks when landslides block rivers and sudden floods destroy vital infrastructure. Recovery will require rescue operations, reliable information, mental health support, financial assistance, and safer transport connections.
For trekkers, the most important step is to verify the latest official guidance before travelling. Do not enter closed or damaged routes, attempt unsafe river crossings or assume that a previous route-opening notice still applies.
Manaslu remains an important destination for Nepal's trekking industry, but safe travel depends on current conditions, responsible decisions, and respect for local emergency instructions. Lives and community recovery must come before any trekking schedule.
