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What Causes Potholes and Why Are They Dangerous?

Published: September 18, 2023
Last updated: September 19, 2023

Every driver knows the jolt of hitting an unexpected pothole. That sudden, teeth-clenching moment hints at potential vehicle damage and hidden dangers lurking beneath the road's surface. As roads crisscross the world’s landscapes, understanding the origins and risks of potholes becomes essential for every motorist.

A Deeper Look at Potholes

Potholes aren’t just minor annoyances that make your coffee spill on your morning commute — they’re complex formations resulting from natural elements and human activity. Water penetration is the main cause of pothole formation and eventual road deterioration.

When rainwater or melting snow infiltrates the cracks and crevices in the road, it lays the groundwork for what becomes a pothole. The water that seeps into the road freezes when temperatures plummet. As it freezes, it expands, exerting pressure on the surrounding road material and causing it to bulge upward.

When temperatures rise, the ice melts and the ground thaws. However, the raised portion of the road often remains, leaving a void between the road and the ground beneath it.

As vehicles drive over these weakened road sections, the asphalt can crack and break, forming a pothole. High-traffic areas are more susceptible to rapid pothole formation and expansion. About 43% of America's public roadways are in poor or mediocre condition, largely due to the constant wear and tear from traffic.

The Real Dangers of Potholes

Beyond the jarring experience, potholes pose tangible threats to drivers. Pothole-related car repairs cost U.S. drivers over $3 billion yearly. The most common damages include tire punctures, bent wheels and suspension issues. Recognizing tire wear patterns early on can save drivers from more costly repairs down the line.

For two-wheel enthusiasts, the risks are even more pronounced. Defective road surfaces — primarily potholes — are a major cause of injuries and accidents for cyclists. Given these risks, ensuring you have robust auto insurance becomes paramount. Pothole-related damages can be expensive and adequate coverage can help shield drivers from unforeseen repair costs.

Avoiding Potholes and Damaged Roads

The best way to avoid accidents and repair costs is for drivers to practice defensive driving and spot potholes early on. Keeping a distance from the car in front will allow better visibility of the road's condition.

Be on the lookout for new potholes, especially after a rainfall or snowmelt. Additionally, try to navigate around puddles, as they might be concealing a deep pothole. If you can't avoid one, reduce your speed to minimize damage.

Proper car maintenance can help withstand unavoidable potholes. Properly inflated tires provide a cushion against pothole impacts, so be sure to check your tire pressure often so you can keep them at the manufacturer’s recommended minimum inflation. Consider investing in tools that fix bent rims, which are a common issue after hitting a pothole and may cost you a pretty penny at the shop.

Preventing Potholes: A Proactive Approach

Addressing the aftermath of potholes is one thing, but taking steps to prevent them from forming in the first place is where the real solution lies. As many studies have shown, potholes result from a combination of environmental factors and the continuous stress roads endure from daily traffic.

The key to pothole prevention lies in the initial construction of the road. A properly constructed road can resist the formation of fatigue cracking, which is a common sign a pothole is about to form.

Integrating quality foundational layers of roads can significantly enhance their overall strength and stiffness. The results are roads that can handle more traffic, and resist the wear and tear that typically leads to potholes.

Driving Forward: The Road Less Potholed

Potholes tell a deeper story about roads. They emerge from a blend of natural elements, the relentless march of vehicles and, occasionally, subpar road construction. Grasping the origins and threats of potholes equips people to champion better road maintenance and safety protocols, safeguarding drivers and pedestrians.

It’s crucial to recognize these seemingly minor road defects can wreak havoc on your vehicle, compromise safety and even strain your finances with unexpected repair bills. As you navigate the roads, stay alert, prioritize safety and arm yourself with knowledge. When you understand the ground you drive on, you set the stage for a smoother ride and a safer journey for all.

Jack Shaw is a seasoned automotive writer with over six years of experience. As the senior writer for Modded, he combines his passion for cars, trucks, and offroading with his expertise to deliver engaging content that resonates with automotive enthusiasts worldwide.
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