What Is the Danger of Driving Through Flooded Roads?

Even shallow water can cause your vehicle to stall. When water enters the exhaust pipe or air intake, it can quickly hydro-lock the engine, leading to catastrophic and expensive damage. Your car may lose traction and become uncontrollable in moving water. Once floating, the vehicle is at the mercy of the current, which can carry it into deeper water or obstacles.

Modern vehicles are not designed to be waterproof. Electronics, including the engine control unit, sensors, and airbag systems, are vulnerable to short-circuiting when submerged. This can lead to failure long after the water recedes. The buoyancy of water means your car weighs far less, making it easy for even a modest current to push it sideways off the road.

• Six inches of water can sweep a person off their feet.
• One foot of water can float most passenger cars and small SUVs.
• Eighteen inches of water can carry away larger vehicles like trucks and vans.
• Flowing water can hide potholes, debris, or a completely washed-out roadbed.
• Contaminated floodwater can damage brake systems and corrode mechanical components.
• A stalled vehicle in a flood zone becomes a hazard for you and potential rescuers.

Floodwater is rarely clean water. It often contains raw sewage, chemicals from roads and garages, agricultural runoff, and other hazardous substances. If this contaminated water enters your vehicle's cabin through the ventilation system or door seals, it exposes you to harmful bacteria, viruses, and toxins. Inhaling aerosols from this water or having it contact open skin can lead to serious infections or illness.

Flooded roads often lead to flooded properties. If floodwater enters your home, it requires professional water extraction and drying to prevent structural damage and mold. Acting quickly is key to minimizing long-term problems and restoration costs. The humid conditions common in many areas after a flood can contribute to rapid mold growth if materials are not dried properly.

Local water damage pros have equipment for emergency water extraction and structural drying. They can perform moisture mapping to find hidden dampness in walls and floors. This process helps prevent secondary damage like warped flooring and mold. For persistent leaks, a professional leak detection service can identify the source, whether from a pipe, the roof, or foundation seepage, allowing for proper repair.

• Move valuables and electrical items to a higher floor if flooding is forecast.
• Know the location of your main water shutoff valve.
• Clear gutters and downspouts to direct water away from your foundation.
• Consider installing flood barriers or sandbags if your area is prone to flooding.
• After a flood, document all damage with photos for your insurance records.
• Avoid using household fans to dry soaked walls, as they can spread mold spores.