What causes surface water flooding?
You don't need to live near a river or the coast to experience flooding. Sometimes, heavy rain and nowhere for the water to go causes havoc. Find out how you can become more flood prepared.
- surface water flooding
- rainwater management
- rainwater capture
What is surface water flooding?
Surface water flooding happens when rainwater collects on the ground, instead of draining away.
It will often build up on surfaces like roads, pavements, driveways and gardens.
It might lead to large puddles, or in serious cases, entering homes, buildings and rising to dangerous levels.
Why does surface water flooding happen?
Ultimately, surface water happens when rainwater has nowhere to go, causing it to collect.
- Heavy Rainfall
- Hard Surfaces
- Sewer Systems at Capacity
- Blocked Drains
- Waterlogged Ground
Rain doesn't have to fall for long to cause surface water flooding. Sometimes it is the short but intense downpours that overwhelm drains or cause water to rush down hard surfaces.
What are the impacts of surface water flooding?
Surface water flooding can happen quickly, without much warning. It can also be very dangerous.
For homes and communities
- Water can enter buildings like homes, garages and businesses
- Belongings and property can be damaged
- It can heavily disrupt daily life
For roads and travel
- Roads can be flooded or blocked creating unsafe driving conditions
- Public transport can be disrupted
For wellbeing
- Stress and uncertainty can impact mental wellbeing
- Flood water can be physically dangerous as well as dirty
How can we help prevent surface water flooding?
Slowing the flow of rainwater can help communities become more flood prepared. Instead of it rushing into drains, we want water to be absorbed, stored, or reused.
At Home
- Keep green spaces in your garden where possible
- Use gravel or permeable materials instead of solid paving
- Capture rain from your rooftop with a water butt
In Communities
- Create more green spaces, trees, and planting areas
- Add features like gardens or swales to hold water
- Keep drains clear of leaves and debris
Want to stay informed about flooding?
Flooding can happen fast, so getting the right information is important.
Here's how to stay informed.
- Sign up for flood alerts
- Use live flood warnings
- Check local authority updates
Would you like to help (for free)?
Find out if you can take part in a rainwater capture project or be notified when one becomes available.