Vietnam has shifted from fighting floods to living with water, after a year of storms that exposed drainage limits in rapidly growing cities. Central planners are pairing hard infrastructure with nature-based measures, restoring wetlands and opening flood basins while tightening controls on building over canals and ponds.
The government has tabled a VNĐ161 trillion plan for landslides and flash floods that emphasises early warning, hazard mapping and targeted resettlement through 2035. Financing now blends public spending with multilateral loans and developer-led retrofits. Delivery capacity, not design concepts, will determine whether the pivot lowers losses and insurance risk.
Sponge city pilots shape urban retrofits
Urban pilots are coalescing around sponge city methods, particularly in mid-sized hubs that can still reclaim water space. In Vinh, the Priority Infrastructure and Urban Resilience Development Project allocates $129.6 million (C$176 million) to drainage, flood storage and greener public realms that absorb cloudbursts. The approach is pragmatic, using parks, lakes and widened canals to detain water rather than race it to the sea.
“If we plan based on past experience, we won’t be resilient in the future,” said Anna Beswick, a climate adaptation specialist, underscoring the need for forward climate baselines.
Results are emerging in the Mekong Delta, where the Can Tho Urban Development and Resilience Project protected about 420,000 residents and kept 2,500 hectares of the urban core dry during recent peak tides. Lessons from these pilots are informing codes and drainage standards in larger metros.
World Bank financing anchors delivery
External finance is tying resilience aims to procurement schedules and measurable outcomes. On September 30, 2025, the World Bank approved support for an Integrated Resilient Development Project in Da Nang and Gia Lai, including a flood bypass canal, restored river channels, and raised roads, backed by nearly $145 million (C$197 million).
The package links flood protection to logistics continuity by safeguarding evacuation corridors, schools and hospitals, and arterial links to Quy Nhon Port. “Viet Nam’s infrastructure really needs to be adapted for flooding and coastal resilience,” said Mariam J. Sherman, framing resilience as an economic enabler rather than a sunk cost.
Portfolio scale also matters, since replicable designs for sluice gates, pump stations and greenways can lower unit costs across cities. Governance will be tested by land acquisition timelines and coordination between transport and water agencies.
Mapping, relocation drive risk reduction
Beyond core works, the policy focus is shifting to where people live and how parcels drain. Authorities aim to complete commune-level risk maps, expand real-time hydromet monitoring, and roll out resettlement for households on unstable slopes and floodways.
In Ho Chi Minh City, officials have set a target to relocate 39,600 canal-edge homes by 2030, pairing social housing with right-of-way clearance that restores urban waterways. The national financing task is large, with adaptation needs estimated at up to US$92 billion this decade, so pipelines must mobilise private co-finance while keeping user charges affordable.
Success will hinge on integrating flood retention into transport projects and real estate schemes, not just standalone drainage, so that each new kilometre of road or metre of embankment also stores or slows water. The shift from reactive response to anticipatory planning is underway, and the next storm season will test it.