Expert tips for driving through flooded roads

With warnings in place for heavy rain, motorists are being advised on how to navigate flooded roads safely.

Motoring experts at LeaseLoco.com have shared their top tips for drivers who find themselves with no choice but to tackle waterlogged routes.

Flooded roads not only pose a serious risk of vehicle damage but can also lead to lengthy standstills and an increased likelihood of accidents.

So motorists have been advised to drive steadily, remain considerate of other road users, and use consistent engine revs to reduce the risk of water damage.

Using a low gear is particularly important, as it helps prevent costly repairs and avoids unnecessary breakdowns that can cause further disruption.

Drivers are also being urged to stay calm and focus on safety by using headlights and maintaining clear visibility. 

Patience is key when navigating flooded roads – motorists should take turns, drive through the highest points of the road, and avoid rushing, as panic can lead to accidents.

John Wilmot, CEO and founder of car leasing deals site LeaseLoco said: “Driving through flooded roads should be avoided whenever possible, both for personal safety and to prevent costly damage to your vehicle.

“However, drivers will inevitably encounter waterlogged roads from time to time, so knowing the safest ways to navigate them is essential.

“Water damage to vehicles can be expensive, but maintaining consistent revs while driving through floodwater can help prevent water from entering the engine.

“It’s also important to stay inside your vehicle in flooded areas, as floodwater often contains contaminants from drainage systems that pose serious health risks.

“In wet conditions, vehicles are at risk of losing traction and control – something known as aquaplaning. If this happens, ease off the accelerator gently, keep the steering wheel straight, and avoid braking harshly, as this can worsen the situation.

“By staying calm, driving slowly, and taking proactive precautions, you can protect yourself, your passengers, and your vehicle.”

LeaseLoco’s tips and advice for driving through flooded roads: 

  • Avoid where possible 

Driving in floods should be avoided whenever possible, as water deeper than 4 inches can pose significant risks to both passengers and pedestrians. Floodwater may be deeper and faster moving than it appears, so plan your journey carefully and reroute if needed.

  • Drive slow 

It’s crucial to drive cautiously and at reduced speeds in flooded areas, as driving too fast can force water into your vehicle and cause serious damage. Additionally, splashing pedestrians by driving through puddles at speed is against the law.

  • Drive through the centre 

Roads are engineered to dip at the sides, allowing water to run off into drainage systems, so driving through the centre of a flooded road will ensure you’re not driving through more water than necessary.

  • One at a time 

Take time and be patient when roads are flooded. Drive cautiously to allow cars to drive through the middle of the road one at a time. For people with larger, more robust cars, be mindful and cautious of other vehicles that might not be as sturdy.

  • Low gear 

Driving in a lower gear and maintaining steady revs can help prevent water from entering the exhaust. If water does enter the exhaust, it can cause hydrolock, potentially resulting in severe engine damage.

  • Use headlights 

Visibility is important when roads are flooded, especially in the evenings, as other drivers might not notice reduced speeds or delays caused by cautiously navigating through the centre of floodwater.

  • Air conditioning 

Prevent your car from misting in floods so that your vision is clear for any potential hazards. Keep air flowing by turning the air conditioning on.

  • Remain inside the car 

Flood water is usually caused from systems overflowing, so the water could be grossly contaminated. Stay inside your car, even if you’re waiting for help. Water may also appear to be more shallow than it really is, which can increase danger to individuals who aren’t confident in water.

Motorists can sign up for flood warnings on the GOV.uk website.