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Temporary dam at 500 canal constructed with new technology, Khanh Hoi commune, U Minh District, Ca Mau within framework of Mekong Delta Climate Resilience Programme.

On February 24, 2022, GIZ in collaboration with Vietnam Disaster Management Authority (VNDMA), the Southern Institute for Water Resources Research and the Ca Mau Department of Agriculture and Rural Development (DARD) jointly organised the "Ceremony on handing over and guiding operation and maintenance procedures of the temporary dams for freshwater storage and salinity prevention" within the framework of the Mekong Delta Climate Resilience Programme (MCRP).  

At the ceremony, two temporary dams constructed with new technologies at canal 500 and Muong Chua were handed over to local management and operation units, namely Ca Mau Irrigation Sub-Department and Khanh Hoi Commune People's Committee. These two dams have many advantages compared to traditional temporary dams: simple structure, easily disassembled and relocated for reuse in the next dry seasons. Therefore, they help the local authority save considerable resources for new construction or renovation. The short construction duration and ease of operation makes this technology very suitable for grass-root management.

Overview of the event

Representative of the local management unit, Mr. Nguyen Thanh Tung - Deputy Director of Ca Mau Irrigation sub-department affirmed that the temporary dams are of great significance and necessity for Ca Mau province, which is located in the downstream, completely dependent on rainwater and groundwater. The construction and handover of these two temporary dams to the local authorities in the middle of the dry season is very timely for the complicated situation of saline intrusion.

The representative of VNDMA, Mr. Le Quang Tuan – Deputy Director of the Department of Science, Technology and International Cooperation shared that “Natural disasters prevention and control, particularly against drought and saltwater intrusion, is the long-term efforts that require a lot of resources. Therefore, diversification of financing mechanisms for disasters prevention is a practical need. It is necessary to have investment incentive policies to mobilise potential resources and promote the participation of the non-state sectors in disaster prevention and control as prescribed in the Law on Natural Disaster Prevention and Control. 

Mr. Le Quang Tuan - Deputy Director of the Department of Science, Technology and International Cooperation, VNDMA at the event

Along with the technology component, this activity also includes the institutional component to encourage the participation of non-state actors in the construction, management, operation, and maintenance of temporary dams. This policy will include important elements such as investment incentives, risk-sharing mechanism, and payment willingness and affordability of local people for irrigation services from temporary dams. After being developed and piloted in Ca Mau, this policy can be further modified for upscaling in other localities in the Mekong Delta.

Representatives of Southern Institute of Water Resources Research, VNDMA, People’s committee of Khanh Hoi commune, Ca Mau sub-department of irrigation, and GIZ at the event

Local communities and non-state actors are encouraged to participate in the process for the construction, operation and maintenance of the temporary dams