What are the requirements for investment in construction of dams and reservoirs in Vietnam? What are the requirements for design and construction of dams and reservoirs in Vietnam?
What are the requirements for investment in construction of dams and reservoirs in Vietnam?
Pursuant to the provisions of Clause 1, Article 18 of the 2017 Law on Irrigation in Vietnam stipulating as follows:
Investment in construction of dams and reservoirs
1. Investment in construction of dams and reservoirs shall satisfy requirements set forth in Article 17 hereof and the following provisions:
a) The general layout and dam structure design shall facilitate control of safety for dams, response to any emergency, and maintain, upgrade and repair dams in case of any damage that may occur;
b) Procedures for operation of gates and valves, procedures for maintenance of specific parts of dams or reservoirs, together with design documentation, shall be established and approved and handed over to owners of dams or reservoirs upon the project transfer date;
c) With respect to overflowing occurring at dams or reservoirs with regulating gates and valves, the operational surveillance system, communication and alerting equipment for safety of dams and downstream regions, and dedicated instruments for hydro-meteorological measurement and observation installed at reservoir basins, shall be made in place;
d) With respect to large dams or reservoirs where uncontrolled overflowing occurs, communication and alerting equipment for safety of dams and downstream regions, and dedicated instruments for meteorological and hydrological measurement and observation installed at reservoir basins, shall be made in place.
Referring to Article 17 of the 2017 Law on Irrigation in Vietnam, the requirements that need to be met in the construction of dams and reservoirs are as follows:
- Accord with the irrigation plan;
- Apply measures to alleviate water loss and reduce land to be used for construction of these irrigation works or facilities;
- Take into account connection between irrigation projects, between irrigation projects and other relevant infrastructure projects, and between regions or water sources;
- Ensure that central irrigation projects, and inter-field and closed irrigation projects operate in a synchronous manner within the system of irrigation works and facilities;
- Duly coordinate the project approach with the non-project approach;
- Provide sufficient resources for safe construction of irrigation works or facilities during the flood proofing or control period;
- Ensure safety for irrigation projects.
- The general layout and dam structure design shall facilitate control of safety for dams, response to any emergency, and maintain, upgrade and repair dams in case of any damage that may occur;
- Procedures for operation of gates and valves, procedures for maintenance of specific parts of dams or reservoirs, together with design documentation, shall be established and approved and handed over to owners of dams or reservoirs upon the project transfer date;
- With respect to overflowing occurring at dams or reservoirs with regulating gates and valves, the operational surveillance system, communication and alerting equipment for safety of dams and downstream regions, and dedicated instruments for hydro-meteorological measurement and observation installed at reservoir basins, shall be made in place;
- With respect to large dams or reservoirs where uncontrolled overflowing occurs, communication and alerting equipment for safety of dams and downstream regions, and dedicated instruments for meteorological and hydrological measurement and observation installed at reservoir basins, shall be made in place.
What are the requirements for investment in construction of dams and reservoirs in Vietnam? What are the requirements for design and construction of dams and reservoirs in Vietnam? (Image from the Internet)
What are the requirements for design and construction of dams and reservoirs in Vietnam?
Pursuant to Article 5 of Decree No. 114/2018/ND-CP, the design and construction of dams and reservoirs must satisfy the following requirements:
(1) Design and construction of dams and reservoirs shall comply with provisions of the Law on Construction and other relevant law provisions, and the following regulations:
- Investment in dam and reservoir construction must satisfy requirements specified in Article 17 of the 2017 Law on Irrigation in Vietnam;
- General arrangement and design of dam's structure shall facilitate dam safety management, emergency response, maintenance, reform and repair of works when the dam is damaged;
- Gate operation procedure and maintenance procedure applied to each work item must be established and approved in conjunction with the design dossier and transferred to the dam and reservoir manager when the work is put into use;
- The spillway gate run by electricity must be supplied by at least two power sources including one source supplied by a backup power generator;
- Dam and reservoir monitoring device must be arranged under current national technical regulations and standards and relevant law provisions;
- Dams and reservoirs having gates to regulate flood flow must be equipped with operation surveillance system; device for notifying and warning of safety for dams and dam lowlands and dedicated hydrometeorology monitoring device in reservoir basin;
- Large dams and reservoir with uncontrolled spillways must be equipped with devices for notifying and warning of safety for dams and dam lowlands and dedicated hydrometeorology monitoring device in reservoir basin;
- Small dams and reservoir with uncontrolled spillways shall comply with regulations in Point g this Clause;
- A dam and reservoir database must be established.
(2) With regard to specially important and large dams and reservoirs:
In addition to compliance with regulations in Clause 1 this Article, the investor shall conform to the following regulations:
- Works for water retaining and discharging whose bottom is below the dam crest must have length and width suitable for work inspection and repair;
- Construction of management road for emergency response and operation station for management, operation and watchkeeping with the aim of preventing and controlling natural disasters attacking the work is required.
(3) As for small and medium-size dams and reservoirs:
The investor shall comply with regulations in (2).
What are the principles for dam and reservoir safety management?
Pursuant to Article 4 of Decree No. 114/2018/ND-CP stipulating the principles for dam and reservoir safety management as follows:
- Dam and reservoir safety assurance is the top priority in investment in construction, management and operation of dams and reservoirs.
- Dam and reservoir safety management must be performed regularly and continuously during the process of surveying, designing, constructing, managing, operating and protecting dams and dam reservoirs.
- Dam and reservoir owners shall take charge of safety of their own dams and reservoirs.
- Dam and reservoir operators shall take responsibility to manage, operate and ensure safety and efficiency of dams and reservoirs.
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