Massive Flash Flooding and Waterlogging in Chattogram: 450,000+ People Impacted and Army-led Relief Operations
Beginning July 4, 2026, heavy rainfall and upstream hilly runoff caused severe flash flooding and waterlogging across Chattogram, particularly in Satkania and Lohagara upazilas. Over 450,000 people have been impacted, with 23,750 families specifically identified as affected in Lohagara alone. Damage to infrastructure, agriculture, and utility services reported, with financial losses estimated at over 433 million BDT. Bangladesh Army's 10th and 24th Infantry Divisions deployed.
Hazard specifics
Flood category
Flash Flood
River
Sangu, Dolu, Shankho, Halda, and Tonkabati Canal
Water depth (m)
1
Duration (days)
5
Trigger / cause
Heavy rainfall
Affected scope
2 Records| Scope | Source wording |
|---|---|
| 15 · upazilla | চট্টগ্রামের ১৫টি উপজেলা |
| 1 · district | চট্টগ্রাম জেলা |
15 · upazilla
চট্টগ্রামের ১৫টি উপজেলা1 · district
চট্টগ্রাম জেলাInvolved entities
8 Records500 mud-built homes
Chattogram-Bandarban Road
Dolu River Bridge / Culverts
Chattogram-Cox's Bazar Highway
Coastal Embankment
Sangu, Dolu, Shankho, Halda River and Hathiyar Canal
CNG-run autorickshaw
Labu's shop
Causative Person
3 Records| Name | Age | Role | Legal status |
|---|---|---|---|
| Md. Ruhul Amin | — | Upazila Nirbahi Officer (UNO) | — |
| Israel Haque | — | Forest Ranger | — |
| Abdul Kader | — | Affected Resident | — |
Md. Ruhul Amin
Upazila Nirbahi Officer (UNO)Israel Haque
Forest RangerAbdul Kader
Affected ResidentAgencies deployed
Bangladesh Army
National military force for land-based operations and disaster response
Deployment of 10th and 24th Infantry Divisions for search, rescue, and relief operations.
Local Administration
District or Upazila level government authorities
Monitoring flood, coordinating evacuations, providing relief. Opened 89+ emergency shelters.
Shelters opened: 110
Fire Service and Civil Defence
First responder for fire, rescue, and medical emergencies
Rescued 14 individuals using boats and relocated them to shelters.
Personnel deployed: 8
Bangladesh Police
Law enforcement agency maintaining public order and security
Highway police stationed to monitor traffic on the submerged highway.