What Happened on Rattanathibet Road, According to News Reports

According to The Bangkok Insight, at about 15:30 on 26 September 2026, heavy rain flooded the road surface of Rattanathibet Road from the front of the Nonthaburi Government Center to the Khae Rai Junction area, with water roughly 15 to 20 centimetres deep. Nakhon Nonthaburi Municipality advised small vehicles to avoid the route. That figure is a snapshot of the moment it was reported; water levels on city roads change through the day with rainfall and drainage capacity, so readers should always follow the latest announcements from the municipality and local authorities.

For national context, figures from the Department of Disaster Prevention and Mitigation, published by the Government Public Relations Department as of 06:00 on 7 October 2026, showed flooding affecting 27 provinces plus Bangkok, covering 123 districts, 984 subdistricts, 1,154,875 households and more than 3.1 million people. These numbers change daily, but they show how many homes, shops and workplaces had to deal with floodwater, and the germs that come with it, during the 2026 rainy season.

Rattanathibet Road is one of Nonthaburi's main arteries. Along it sit government offices, office towers, condominiums, shopping malls, restaurants, convenience stores, clinics, car repair shops and elevated train stations. When the road floods, the water does not stay on the asphalt. Passing traffic pushes waves onto the pavement, into shopfronts and down car park ramps. Pedestrians wade to bus stops, staff walk through water to reach their buildings, and small cars that drive through carry water up into their carpets. That is why even shallow urban street flooding is a real hygiene problem.

Example Case: A Coffee Shop Below an Office Building on Rattanathibet Road

Note: this is a typical scenario compiled from situations commonly seen after urban street flooding. It is not the account of any specific customer.

May runs a small coffee shop on the ground floor of a shophouse facing Rattanathibet Road. Most of her customers work in nearby government offices and companies. On the afternoon of the heavy rain, she watched the water rise past the kerb. Each passing car sent a murky wave against her glass door, and grey, foamy water carrying leaves and plastic bags seeped under the threshold. A long strip of floor in front of the counter was soaked, and chair legs, table legs and boxes of supplies stored on the floor stood in water.

When the rain stopped and the road drained in the evening, May and her staff mopped up, washed the floor with an ordinary floor cleaner and ran fans overnight. The shop opened as usual the next day. Then a musty smell began rising from under the counter, spots appeared along the bottom of the walls, and the doormat still smelled after a day in the sun. One staff member who had waded home developed itching between the toes. Another had grazed a shin on a branch in the water, and the scrape turned red and swollen. Regular customers started asking whether the shop was really safe.

May realised that a quick mop removed visible water and dirt, but not the germs that had soaked into grout lines, under furniture, into mats, down drains and into corners a mop never reaches. She contacted WHD to assess the shop, set out the right cleaning sequence, and then spray-disinfect the whole space, including the storeroom and staff toilet, before reopening fully. The same thing can happen to any shop, office, clinic or home on Rattanathibet Road or any other main road in Nonthaburi.

Why Shallow Street Flooding on Rattanathibet Road Carries So Many Germs

Many people see 15 to 20 centimetres of water on a road as a traffic nuisance. From a hygiene point of view, urban floodwater is dirtier than it looks. First, rain washes everything that has collected on roads and pavements into the water: dust, engine oil, tyre residue, animal droppings, rubbish and food scraps from street stalls. Second, when the drains cannot cope, water from the sewer network, which carries wastewater from buildings, can back up onto the road. Third, drains and gutters are home to rats and cockroaches, so standing water may contain rat urine.

Add heavy traffic splashing that water onto pavements, and it reaches the places where people actually live and work: shopfronts, lobbies, lifts, basement car parks, ground-floor storerooms and private cars. When the water dries, it leaves a thin film of sediment that feeds and shelters bacteria and mould, especially in air-conditioned buildings with damp corners. Mopping, fans and air fresheners deal with what you can see and smell; they do not reach germs in grout, under carpets or on the door handles and lift buttons touched hundreds of times a day.

Flood Germs on Rattanathibet Road, Nonthaburi: Know Them Before You Reopen

Urban floodwater is a mix of bacteria, viruses and fungi. Each has its own route of spread, hiding places, symptoms and risk groups. The information below is general prevention guidance, not treatment advice. Anyone who feels unwell should see a doctor and mention contact with floodwater.

1. Leptospira, the Cause of Leptospirosis

How floods spread it: rats living in drains, gutters and behind restaurants shed the bacteria in their urine. In standing water and mud it can enter the body through cuts, scrapes, skin softened by long soaking, or the eyes, nose and mouth. Where it hides afterwards: damp mud at shopfronts, drains, ground-floor storerooms, wet car park floors and shoes worn while wading. Symptoms and risk groups: sudden high fever, headache, muscle pain especially in the calves, and red eyes. People who waded for long periods, cleaners and anyone with leg or foot wounds face the highest risk. Prevention: wear boots and rubber gloves, cover wounds with waterproof dressings, wash feet with soap right after contact, and see a doctor promptly if fever follows wading within the next few weeks. Leptospira is a bacterium, within the bacteria group that WHD's product information says it covers in general; no organism-specific test result is listed, and readers can ask WHD for test data.

2. E. coli (Escherichia coli) from Drain Backflow

How floods spread it: E. coli lives in human and animal intestines and is the classic marker of sewage contamination. When drains overflow, wastewater can reach the road surface and ground floors. Where it hides: ground-floor toilets, restaurant kitchen drains, grout lines, doormats and furniture legs. Symptoms and risk groups: diarrhoea, stomach cramps and nausea; some strains cause bloody diarrhoea. Young children, older adults and people with weak immunity are most vulnerable. Prevention: discard food and ingredients touched by floodwater, wash hands before preparing food, and clean food-contact surfaces before disinfecting them. E. coli belongs to the bacteria group the product says it covers in general, without a specific listed result.

3. Norovirus in Offices and Restaurants

How floods spread it: norovirus spreads through faeces and vomit. Contaminated water or hands bring it onto frequently touched surfaces. Where it hides: door handles, lift buttons, handrails, cash counters, taps and shared office toilets. Symptoms and risk groups: sudden vomiting, diarrhoea, stomach pain and mild fever; children, older adults and colleagues in close quarters can fall ill in clusters. Prevention: wash hands with soap and water rather than relying only on alcohol gel, and clean shared touch points often. According to WHD's product information, norovirus is one of the organisms CHEMGENE HLD4H is stated to cover.

4. Campylobacter from Food Waste and Animal Droppings

How floods spread it: Campylobacter lives in the gut of poultry and pets. Rain that washes food waste, restaurant rubbish and droppings off the road can carry it into kitchens and food preparation areas. Where it hides: back-of-shop kitchen floors, bins, grease traps and chopping boards or containers stored on the floor. Symptoms and risk groups: diarrhoea, cramps and fever; food businesses and their customers are most exposed. Prevention: separate raw and cooked food, discard flood-touched ingredients, and clean then disinfect kitchens before trading again. It sits within the bacteria group the product says it covers in general; ask WHD if you need specific test data.

5. Staphylococcus aureus and Wounds from Debris

How floods spread it: this bacterium lives on skin and in the environment. Cuts from glass, metal or branches hidden in street water, kept wet by dirty water, give it a way in. Where it hides: doormats, staff towels, reused cleaning tools and damp surfaces. Symptoms and risk groups: wounds that become swollen, red, hot or pus-filled; people with diabetes, older adults and those with chronic wounds are at higher risk of spreading infection. Prevention: wash wounds at once with clean water and soap, keep them covered and dry, see a doctor if redness spreads or fever appears, and ask a doctor about tetanus vaccination after a dirty cut. It belongs to the bacteria group the product says it covers in general.

6. Pseudomonas aeruginosa in Places That Stay Wet

How floods spread it: Pseudomonas loves moisture and thrives in still water, pipes and constantly wet surfaces, where it forms slimy biofilm. Where it hides: drains, sinks, air-conditioner drip trays, sponges and mops that never dry. Symptoms and risk groups: skin and wound infections, outer ear infections, and serious infections in people with weak immunity or burns. Prevention: dry areas quickly, replace or disinfect cleaning tools, and scrub drains and basins before disinfecting. It is within the bacteria group the product says it covers in general, with no specific listed result.

7. Adenovirus and Post-Flood Conjunctivitis

How floods spread it: eye infections often rise during floods as dirty water splashes into eyes and people rub their eyes with wet hands. Adenovirus also spreads via shared surfaces and droplets. Where it hides: shared towels, phones, keyboards and handrails. Symptoms and risk groups: red, watery, itchy eyes with discharge, sometimes fever and sore throat; students and office workers sharing equipment pass it on easily. Prevention: avoid rubbing eyes, do not share towels, wash hands often and see a doctor for red eyes. Adenovirus belongs to the virus group the product says it covers in general.

8. Influenza Virus in Crowded Buildings During Storms

How floods spread it: flu does not come from floodwater itself, but storms push crowds together in lobbies, shops and train stations, and wet, tired bodies resist infection less well. Where it hides: lift buttons, fingerprint scanners, meeting tables, handrails and service counters. Symptoms and risk groups: high fever, body aches, cough and sore throat; older adults, pregnant women, young children and people with chronic illness face more complications. Prevention: wear a mask when sick, wash hands, clean shared touch points and ask a doctor about annual vaccination. According to WHD's service and product information, influenza H1N1 and H5N1 are among the organisms stated to be covered.

9. Dermatophytes and Athlete's Foot

How floods spread it: people who wade along the road and then wear wet shoes all day soften the skin between their toes, letting skin fungi such as Trichophyton take hold. Where it hides: damp shoes, doormats, shower floors and staff locker rooms. Symptoms and risk groups: itching, peeling, redness, stinging and odour, sometimes with secondary bacterial infection; delivery riders, people who stand all day and people with diabetes are most at risk. Prevention: wash and dry feet carefully, change socks, never reuse wet shoes, and see a doctor if a rash persists. According to the service information, fungi are a group the service is stated to cover.

10. Mould in Buildings and Cars: Aspergillus and Penicillium

How floods spread it: mould spores are everywhere, but they grow fast on materials that stay wet for more than 24 to 48 hours: carpets, gypsum ceilings, wall bases, wooden cabinets and the floor carpets of cars that drove through flooded roads. Where it hides: behind cabinets, under carpets, in lower walls, air-conditioner vents, document stores and car interiors. Symptoms and risk groups: stuffy nose, sneezing, coughing and eye or throat irritation; people with asthma, allergies or weak immunity may react more strongly. Prevention: dry quickly, discard soaked and mouldy materials, scrub mould before disinfecting, and consider an ozone treatment for musty enclosed spaces. According to WHD's service information, fungi and mould are within the groups the spraying service is stated to cover.

How Cleaning and Spray Disinfection Work Together on Rattanathibet Road

The World Health Organization and the US Centers for Disease Control and Prevention both advise cleaning flood-contaminated surfaces to remove mud and dirt first, then disinfecting, because dirt reduces how well disinfectants work. Absorbent materials should be dried within 24 to 48 hours to limit mould. This applies equally to a small shop, a large office tower and a family home.

According to WHD's product and service information, CHEMGENE HLD4H is stated to cover organisms including SARS-CoV-2 (COVID-19), human coronavirus 229E, RSV, influenza H1N1 and H5N1, norovirus, hand, foot and mouth disease virus, Salmonella, Bordetella pertussis, mycobacteria, and bacteria and fungi in general, with the service page claiming 99.99%. For organisms not on that list, such as Leptospira, E. coli, Campylobacter, Pseudomonas or adenovirus, treat them as members of the bacteria or virus groups the product says it covers, and ask WHD for organism-specific test data if you need it. Spraying never replaces cleaning, drying or medical care. It is the final step that reduces germs left on surfaces after cleaning.

WHD's Post-Flood Spraying Process for Shops, Offices and Homes in Nonthaburi

According to the service information, WHD's trained technicians spray and/or ULV-fog (Ultra Low Volume fine mist) CHEMGENE HLD4H, a medical-grade disinfectant from the United Kingdom containing benzalkonium chloride and didecyldimethylammonium chloride. The service page lists approvals and endorsements including the Department of Medical Sciences, Mahidol University, NHS England and EN 14476:2013+A2:2019. The typical process:

1. Survey: contact WHD by phone or LINE with photos of the shopfront, storeroom, toilets and the flood line so the team can assess size and risk.
2. Mud removal and washing first: clear debris, scrub off mud, discard soaked and damaged materials, and ventilate to dry as much as possible. Spraying works best on surfaces that are already clean.
3. Zoning: divide the shop floor, kitchen, toilets, storeroom, lobby or car park so each zone is covered thoroughly.
4. Everyone leaves the zone: staff, customers and pets leave during application, and food, utensils and personal items are put away.
5. Spraying: floors, lower walls, furniture, touch points and hidden corners are treated.
6. Re-entry: according to the service information, wait about 30 minutes before using the space normally, always following the technicians' instructions on site.

WHD is based in Bang Khae, Bangkok 10160, with no branch in Nonthaburi. Jobs in the surrounding provinces are arranged by phone and LINE according to the team's schedule, so please book ahead. Pricing depends on size and condition. Current promotions in the service information include a free CHEMGENE spray bottle and WELLGIENIC wet tissues, and tax invoices are available. Customers include hospitals, schools, malls, airports, offices, airlines, banks and residential buildings.

10 Reasons Rattanathibet Road Businesses Should Disinfect After the Flood

1. Main-road floodwater mixes with drain backflow that may carry invisible sewage germs.
2. Many customers and staff cross the same floor every day, so germs spread fast.
3. The WHD disinfection spraying service uses a medical-grade product stated to cover viruses, bacteria and fungi.
4. ULV fine mist reaches corners and surfaces a mop cannot.
5. It reassures regular customers who ask whether the shop is safe.
6. About 30 minutes of waiting, per the service information, before normal use resumes.
7. Trained technicians follow a safe sequence for building users.
8. Standards and institutions such as EN 14476 and the Department of Medical Sciences are cited in the service information.
9. Tax invoices suit companies, agencies and shops that need paperwork.
10. It closes the recovery process properly, helping you prevent and eliminate post-flood germs before reopening.

Before and After Spraying

Recovery Checklist for Rattanathibet Road Shops and Offices

• Photograph the damage before cleaning, for insurance or authorities.
• Switch off power in flooded zones; get an electrician if unsure.
• Wear boots, rubber gloves and a mask while removing mud.
• Discard food, ingredients and packaging touched by floodwater.
• Scrub floors, lower walls, furniture legs and drains.
• Throw out soaked or mouldy carpet, ceiling boards and similar materials.
• Ventilate and dry within 24 to 48 hours.
• Clean car carpets and mats if you drove through water.
• Book WHD spraying and tell staff when to leave the area.
• Watch for fever, calf pain, diarrhoea or infected wounds, and see a doctor if they appear.

FAQ: Post-Flood Disinfection in Nonthaburi

Q: The water was only on the road surface. Do I still need spraying?
A: If water entered your shop, building or toilets, clean first and then disinfect, because street water can contain drain backflow and rat urine.

Q: Should I wash first, or can the team spray straight away?
A: Remove mud and wash first. Dirt reduces disinfectant performance, so spraying always follows cleaning.

Q: Can we stay inside during spraying?
A: No. People and pets leave the zone and return when the technicians say so, typically about 30 minutes per the service information.

Q: What product is used?
A: CHEMGENE HLD4H, a medical-grade disinfectant from the UK, stated to cover a range of viruses, bacteria and fungi.

Q: Does WHD have a Nonthaburi branch?
A: No. WHD is in Bang Khae, Bangkok. Nonthaburi jobs are booked via 065-556-6294 or LINE @whd268, subject to scheduling.

Q: Is there zero residue?
A: We make no such claim. Follow the technicians' advice on ventilation and wiping food-contact surfaces afterwards.

The Water Is Gone. Let WHD Help Prevent and Eliminate the Germs It Left on Rattanathibet Road

Whether you run a shop, manage an office building or condominium, or live along Rattanathibet Road in Mueang Nonthaburi, once cleaning is done, WHD's disinfection spraying service is the final step that helps prevent and eliminate the germs floodwater left behind, so your space is ready to use with confidence.

Book Post-Flood Disinfection Spraying

Call 065-556-6294 | LINE @whd268

Related Links

• WHD Disinfection Spraying Service
• CHEMGENE HLD4H Disinfectant
• Residential and Building Ozone Disinfection for musty odours

References

• The Bangkok Insight (26 September 2026), street flooding on Rattanathibet Road from the Nonthaburi Government Center to Khae Rai Junction: https://www.thebangkokinsight.com/news/politics-general/general/1700889/
• Government Public Relations Department, citing DDPM data as of 06:00, 7 October 2026: https://www.prd.go.th/th/content/category/detail/id/33/iid/548715
• CDC, Floods: https://www.cdc.gov/floods/
• World Health Organization, Fact sheets: https://www.who.int/news-room/fact-sheets
• Department of Disease Control, Thailand: https://ddc.moph.go.th/