Flood DefendTM
NF-70 High-Strength Demountable Flood Barrier for Civil Engineering Projects
A High-Strength Demountable Flood Barrier for Civil Engineering is a modular flood defense system engineered to withstand high water pressure while maintaining structural stability. Built for demanding environments, it combines robust performance with a lightweight design, ensuring reliable protection in large-scale infrastructure projects.
Unlike permanent flood walls, this demountable system allows fast installation and removal, offering greater flexibility for both temporary and semi-permanent applications. Its adaptable design makes it an ideal solution for modern civil engineering projects where durability, efficiency, and long-term reliability are essential
Key Features of the High-Strength Demountable Flood Barrier
- High-Strength Structural Panels: Engineered panels designed to resist high hydrostatic pressure and impact loads
- Modular Demountable Design: Individual components allow flexible configuration and scalable protection length
- Heavy-Duty Support Columns: Reinforced posts ensure structural stability under demanding flood conditions
- Advanced Sealing System: Precision sealing elements minimize water leakage during peak flood events
- Corrosion-Resistant Materials: Suitable for long-term outdoor use in harsh and coastal environments
- Fast Deployment Capability: Designed for rapid installation and dismantling during emergency response
- Reusable System Components: Optimized for repeated deployment across multiple flood events
Engineered for Civil Engineering Flood Defense – NEWFLAG Demountable Flood Barrier
The High-Strength Demountable Flood Barrier for Civil Engineering from NEWFLAG is designed to meet the demands of infrastructure-scale flood control. Constructed with reinforced panels and robust support systems, it provides reliable protection against rising water levels, storm surges, and surface flooding in urban and industrial settings.
This system is widely used in civil engineering projects where permanent flood walls are impractical or flexible protection is required. Its demountable design remains unobtrusive under normal conditions while enabling rapid deployment to support emergency response and planned flood management.
NEWFLAG supplies this solution for project-based procurement, wholesale supply, and OEM custom manufacturing, allowing contractors and engineering firms to define barrier heights, dimensions, and layouts based on site conditions and regulatory requirements.
How the Detachable Flood Barrier Ensures High Structural Strength
The NF-70 series is a strengthened metal flood board system engineered for extreme flood conditions. It uses high tensile 6005 aluminum alloy for the posts and increased thickness for both the central posts and barrier panels, providing enhanced strength to resist hydrodynamic waves and strong currents.
The system is designed with a maximum height of 3 meters. Heights below 3 meters can be achieved easily in 200mm increments by sliding the mobile stop logs in or out. For added stability, extra vertical reinforcement is welded at the base of each post, improving the overall structural strength.
NEWFLAG Flood Barrier Key Advantages
- Strengthened high tensile aluminum 6005 alloy： meets loading requirements while keeping the system lightweight.
- Impressive flood protection up to 3m water head： withstands heavy floods, storm surges, and high water pressure.
- 20-year guarantee on main parts： engineered for long-term reliability and durability.
- Height adjustable at will： modular stop logs allow flexible height adjustment in 200mm increments.
- Remarkable low seepage： PE and PU ground gaskets compensate for uneven ground and reduce water infiltration.
- Quick deployment and removal： fast installation and dismantling for emergency response and seasonal use.
- No visual intrusion after flood season： removable design restores landscape and avoids permanent structures.
- Unlimited length capability： modular posts allow continuous barrier runs and curved layouts.
Removable Flood Barrier Applications in Urban Flood Protection
Urban Flood Protection and Infrastructure
The High-Strength Demountable Flood Barrier is widely used in urban flood defense projects, protecting roads, bridges, and public facilities. Its modular design is suitable for densely populated areas where permanent barriers are impractical.
Industrial Sites and Critical Facilities
Industrial plants, power stations, and warehouses often require reliable flood protection to avoid operational disruption. NEWFLAG’s system provides dependable defense against water ingress and can be tailored to complex site layouts.
Coastal and Riverbank Flood Control
The barrier is also suitable for coastal and riverbank defense, where storm surges and high tides pose significant risks. Its high-strength design supports heavy water pressure and long barrier runs.
Temporary and Emergency Flood Response
For emergency flood response, the system can be rapidly deployed to protect critical areas. Its demountable design supports flexible use for short-term and seasonal flood management.
Temporary Flood Barrier Specifications
MAX. EFFECTIVE FLOOD HEIGHT (EFH): 1600-3000mm
DESIGN SPAN: 2000-3000mm depends on height MAX. SAFE SPAN: 2500mm-4000 depends on height
MATERIAL:
Side Post (6005-T6):
Height: Max. 2.95 m/ Section: T10.0*100*70mm/ Linear: 5.50Kg/m
Barrier Panel (6063-T5):
Supply Length: Max. 6 m/ Section: T4.0*70*200mm/ Linear: 5.85Kg/m
Central Post (6005-T6):
Height: Max. 2.95 m/ Section: T20.0*120*186mm/ Linear: 15.54Kg/m
SEALS:
Panels and posts: EPDM (Ethylene Propylene Diene Monomer rubber)
Ground: PE&PU composed
COLOUR: Anoidzed (Silver/Black)/ Powder Coated (White, Black,Grey)/ Heat Transfer (Wood Grain)
WEIGHT:
For EFH 3.0m*L100m, it is 37kg/m2 (each span 2.5m)
Why Civil Engineering Projects Choose Deployable Flood Barriers
| Why It Fails in Civil Engineering | NEWFLAG High-Strength Demountable Flood Barrier Advantage |
|---|---|
| Traditional sandbags are slow to deploy, manpower-intensive, hard to store, and generate waste after use. | Rapid deployment, reusable, easy storage, and lower lifecycle cost. |
| Permanent concrete flood walls involve high cost, long approval time, landscape disruption, and environmental objections. | Demountable design avoids permanent landscape changes and reduces project complexity. |
| Ordinary temporary flood boards have weak stability and can collapse in heavy rain, causing flooding and project delays. | High-strength structure and reinforced support ensure stability under severe conditions. |
| Limited-height temporary solutions cannot adapt to sudden water level rise, leaving risks unprotected. | Adjustable height and modular design support up to 3m water head. |
| Non-custom systems cannot fit complex site layouts or meet specific regulations. | OEM customization and flexible layout for site-specific requirements. |
Demountable Flood Barrier Installation Flexibility
Flexible span and unlimited length
The safety span between two posts is 2 meters. For wider openings, additional central posts can be added to extend the barrier to unlimited length.
Curved layouts and custom corners
Barrier panels can be installed with up to a 5° angle, allowing arcs or curves when enough central posts are used. For special corners or arcs, customized corner posts can be designed based on site assessment.
Ground compensation and water tightness
PE and PU composite compressive ground gaskets compensate for uneven ground, improving water seepage resistance.
Fast deployment and easy storage
Once pre-installed, a team of five can deploy 100 meters of 1-meter-high flood wall within one hour. After use, the barrier can be quickly disassembled and stored with minimal visual impact.
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