Integrated Flood Risk Management Strategy for Ho Chi Minh City, Viet Nam
Urban water management
The Steering Centre of Urban Flood Control of Ho Chi Minh City
In order to decrease the frequent flooding of residential areas in Ho Chi Minh City, the Steering Centre of Urban Flood Control commissioned a study to develop an integrated flood risk management strategy for the city and its surrounding districts. The area is subject to high tides, spilling from Tri An and Dau Tieng reservoir, diverted flood waters from the Mekong river and high intensity rainfall. The city’s residents face frequent flooding due to one or a combination of these factors. The client developed three strategies to eliminate frequent flooding and asked the consortium to assess these strategies with a multi-criteria assessment including cost-benefit analysis.
The study comprises the following components:
- Flood modelling, developing a numerical model which integrated the description of rainfall-runoff processes in both urban as rural areas, urban drainage through pipes, open channel drainage and operational control of structures;
- Probabilistic modelling, execution of a probabilistic analysis in which potential flood events were identified and the probabilities of these events were quantified;
- Flood risk management strategies, assessing the impact of different flood management strategies on their potential contribution to reduce the flooding in Ho Chi Minh City and increase its resilience, also scenarios on climate change, land subsidence and spatial planning were included;
- Capacity building, providing trainings consisting of various elements like workshops and on-the-job training.
For more information: Flood Risk Management Strategy for Ho Chi Minh City