This Decision issues industry standards for flood prevention and control in the Red River Delta, applicable to planning projects for flood prevention and control systems. The standards specify frequency and design water levels for dikes based on different reservoir capacities.
Scope of application
State management agencies for agriculture and rural development, construction units building flood prevention and control works, and businesses related to the planning of these systems.
Key points
- This standard applies to the Red River Delta region, with particular emphasis on dikes of Class III and above in the Red River and Thai Binh River systems.
- Flood prevention frequency is specifically defined in Table 2.1, based on different reservoir capacities, with frequencies ensuring safety from 0.8% to <0.2%.
- Design water levels for dikes are also detailed in Table 2.2, with water levels at Hanoi and Pha Lai.
- When constructing new reservoirs on the Red River and Thai Binh River systems with a capacity of 300 million cubic meters or more, they must have flood prevention capacity according to economic and technical requirements and system needs, decided by the competent authority.
- This standard takes effect from the date of issuance.
🌐 Social impact of this document
- Positive impacts include enhancing flood prevention capabilities in the Red River Delta, protecting people's livelihood safety.
- Negative impacts may include high investment costs for flood prevention works, requiring significant financial and human resources.
❓ Frequently asked questions
To which area does this standard apply?
This standard applies to the Red River Delta region, particularly to dikes of Class III and above in the Red River and Thai Binh River systems.
How is the frequency of flood prevention specified?
Flood prevention frequency is specifically defined in Table 2.1, with frequencies ensuring safety from 0.8% to <0.2%, depending on reservoir capacity.
How is the design water level for dikes specified?
Design water levels for dikes are specified in Table 2.2, with water levels at Hanoi and Pha Lai, based on corresponding dike classes.
What requirements are there when constructing new reservoirs?
When constructing new reservoirs with a capacity of 300 million cubic meters or more, they must have flood prevention capacity according to economic and technical requirements and system needs, decided by the competent authority.
When does this standard take effect?
This standard takes effect from the date of issuance, specifically July 5, 2002.
Full text
DECISION OF THE MINISTER
MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT
Regarding the issuance of industry standards
THE MINISTER OF AGRICULTURE AND RURAL DEVELOPMENT
Pursuant to the Law on Water Resources dated May 20, 1998;
Pursuant to the Ordinance on Dike Management dated August 24, 2000;
Pursuant to the Ordinance on Flood and Storm Prevention and Control dated March 8, 1993, amended and supplemented on August 24, 2000;
Pursuant to the Ordinance on Exploitation and Protection of Irrigation Works dated April 4, 2001;
Pursuant to Decree No. 73/CP dated November 1, 1995 of the Government stipulating the functions, tasks, authorities, and organizational structure of the Ministry of Agriculture and Rural Development;
Pursuant to Circular No. 959/CP-NN of the Government dated October 24, 2001 regarding the assignment to the Ministry of Agriculture and Rural Development to establish and approve the Standard for Flood Prevention in the Red River Delta as the basis for constructing the Son La Hydropower Plant;
Pursuant to the regulation on the establishment, examination, approval, and issuance of industry standards attached to Decision No. 135/1999/QD-BNN-KHCN dated October 1, 1999;
Based on the proposal of the Director of the Department of Science, Technology and Product Quality, the Director of the General Department of Flood Prevention and Dyke Management, the Director of the Water Resources Management Department, and the Director of the Institute of Irrigation Planning;
DECISION:
Article 1. Issued with this decision is the industry standard: 14TCN 122-2002: Standard for Flood Prevention in the Red River Delta.
Article 2. This standard shall take effect from the date of issuance.
Article 3. The Head of the Office of the Ministry, the Director of the Department of Science, Technology and Product Quality, the Director of the General Department of Flood Prevention and Dyke Management, the Director of the Water Resources Management Department, the Director of the Institute of Irrigation Planning, and the Heads of related units are responsible for implementing this decision.
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THE MINISTER (Signed) Le Huy Ngo |
STANDARDS
INDUSTRY STANDARD 14TCN 122-2002: STANDARD FOR FLOOD PREVENTION IN THE RED RIVER DELTA
(Issued pursuant to Decision No. 60/2002/QD-BNN dated July 5, 2002 of the Minister of Agriculture and Rural Development)
1. General Provisions
1.1 This standard specifies the flood prevention frequency for the Red River Delta region and the design water level for dikes of Class III and above in the Red and Thai Binh Rivers systems.
1.2 This standard is used to approve planning projects for flood control systems in the Red River Delta, including reservoirs, dikes, and flood diversion and drainage works.
2. Flood Prevention Standard for the Red River Delta
2.1 The flood prevention frequency for the Red River Delta is specified in Table 2.1.
Table 2.1. Flood Prevention Frequency for the Red River Delta
| Flood Prevention Standards | Hanoi City Center | Other Areas |
| 1. Current Stage, Flood Prevention in August 1971 | ||
| - Assurance Frequency, % | 0,8 | 0,8 |
| - Recurrence Period, Years | 125 | 125 |
| 2. Post-Dai Thi Reservoir Stage | ||
| - Assurance Frequency, % | 0,4 | 0,67 |
| - Recurrence Period, Years | 250 | 150 |
| 3. Post-Son La, Dai Thi Reservoir Stage | ||
| a. Case where the flood storage capacity of reservoirs constructed on the Da River is 7 billion cubic meters of water | ||
| - Assurance Frequency, % | 0,2 | 0,33 |
| - Recurrence Period, Years | 500 | 300 |
| b. Case where the flood storage capacity of reservoirs constructed on the Da River exceeds 7 billion cubic meters of water | ||
| - Assurance Frequency, % | <0,2 | <0,33 |
| - Recurrence Period, Years | >500 | >300 |
Note: The flood prevention frequency in Table 2.1 includes measures such as reservoirs, flood retardation, dikes, and drainage works according to the flood prevention plan for the river system.
2.2 The design water level for dikes in the Red and Thai Binh Rivers systems is specified in Table 2.2
Table 2.2. Design Water Level for Dikes in the Red and Thai Binh Rivers Systems
| Flood Prevention Standards | Hanoi Dike (Special Class) | Class I, II, III Dikes |
| - Design Water Level for Hanoi Dike, m: | 13,4 | 13,1 |
| - Design Water Level for Pha Lai Dike, m: | - | 7,2 |
Note:
1. The design water level for Hanoi Dike (Hanoi Hydrological Station) and Pha Lai Dike (Pha Lai Hydrological Station) is specified in Table 2.2 based on the dike class for each corresponding dike level calculation;
2. The basis for selecting the water level at Pha Lai Dike at 7.2m is equivalent to the water level at Hanoi Dike at 13.10m;
3. The height is taken according to the national elevation system 14TCN 102-2002.
2.3 When planning and designing new reservoirs with a total capacity of 300 million cubic meters of water or more on the Red and Thai Binh Rivers systems, they must have flood storage capacity based on economic and technical comparisons and flood prevention requirements of the system, decided by the competent authority and agreed upon by the Ministry of Agriculture and Rural Development.
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