December 2024

Storm Darragh batters UK with 90mph winds highlights Concrete’s important role in flood defence

Storm Darragh has unleashed hurricane-force winds and torrential rain across the United Kingdom, prompting the Met Office to issue a rare red weather warning. The storm, which hit on Saturday, December 7, 2024, brought gusts reaching up to 93mph in Wales, causing widespread disruption and power outages.

As the UK grapples with increasingly frequent and intense storms, with five of the ten wettest years on record occurring since 2000, the importance of robust flood defence infrastructure has come into sharp focus.

Concrete drainage and walling systems are emerging as a heavyweight solution to combat high winds and flooding.

Concrete’s advantages in storm defence

Wind resistance and stability
Concrete’s substantial mass allows it to withstand high wind speeds associated with severe storms, effectively absorbing and dissipating wind forces.

During floods and storm surges, concrete walls and barriers remain firmly in place due to their heavyweight nature.

Water Management
The dense composition of concrete makes it highly resistant to water penetration, creating an effective barrier against floodwaters. Its mass help deflect floating debris, protecting properties from potential damage during high-water events.

Durability and Versatility
Concrete structures can endure harsh weather conditions without warping or rotting, unlike some lightweight material alternatives. The strength of concrete allows for flexible design options, including heightening riverbanks or constructing sea walls.

Additional benefits of concrete in flood defence

• Structural integrity: Concrete’s compressive strength increases over time, providing long-term reliability.
• Fire resistance: In the event of storm-related fires, concrete remains resistant to extreme heat
• Rapid installation: Concrete blocks can be quickly sourced and built, making them ideal for emergency flood protection measures.
• Robustness: They create strong, long-lasting structures capable of withstanding floodwater pressures.
• Versatility: Suitable for various applications, including riverbank and coastal erosion control
• Low maintenance: Minimal upkeep required, ensuring long-term practicality
• Sustainability: Long service life contributes to environmental goals

As extreme weather events like Storm Darragh become more common, the use of concrete in flood defence systems is providing invaluable. Its ability to provide immediate protection and long-term resilience makes it an essential component in the UK’s strategy to combat the impacts of climate change and protect communities from flooding.