Can You Drive Through Flooded Roads? How to Gauge Water Levels and Stay Safe!

(Photo credit: Freepik)

During the rainy season, many areas in Thailand, especially in cities — face flash flooding.

Driving through flooded roads is sometimes unavoidable, but the critical question is “Can you safely drive through it?” A wrong decision can lead to engine failure, costly damage, or even accidents. That’s why knowing how to assess flood water depth and drive carefully is crucial.

Can You Drive Through Floodwater? Here’s What to Check

1. Water level should not exceed half the tire height (approx. 30 cm)

If it goes above, water might enter the engine or exhaust system.

2. Observe the car ahead of you

If a car similar in size makes it through safely, that’s a good sign—but not a guarantee.

3. Be cautious with low-ground-clearance cars like sedans

These vehicles are more likely to take in water compared to SUVs or pickup trucks.

Precautions When Driving Through Flooded Roads

1. Use low gear, drive slowly and steadily

Prevents water from splashing into the engine and maintains vehicle control.

2. Avoid sudden acceleration or braking

It can cause skidding or damage the braking system.

3. Don’t stop in deep water

If the engine stalls while submerged, restarting can cause severe internal damage.

4. Test your brakes afterward

Lightly pump the brakes to help remove excess water from the brake pads.

What to Do If Your Car Stalls in Flood Water

• Never restart the engine!

Water might have entered the combustion chamber—restarting could destroy the engine.

• Call a tow truck and inform your insurance provider

Let professionals handle the situation to avoid further damage.

What Type of Car is Best for Driving Through Floods?

• SUVs and PPVs: Better ground clearance and engine height
• Pickup Trucks: Generally good clearance unless overloaded
• EVs (Electric Vehicles): Best to avoid floods—electrical systems can be vulnerable

Driving through flooded streets requires careful judgment. If you’re ever unsure whether the water is too deep, the safest choice is to avoid driving through it. But if absolutely necessary, follow these safety tips to protect your car and yourself!

Read More:  Rainy Season Driving Tips: How to Stay Safe on Wet Roads for You and Your Car

Looking for a  car appraisal?  You can contact us for a free car valuation within 24 hours…