What Causes Potholes to Form in Asphalt — And How to Prevent Them

by | May 20, 2026

Potholes are one of the most common and frustrating types of asphalt damage for homeowners and business owners alike. Beyond affecting curb appeal, potholes can create safety hazards, damage vehicles, and lead to more expensive pavement repairs if left untreated.

Understanding what causes potholes can help property owners take preventative steps to protect their asphalt surfaces.

How Potholes Form

Potholes develop when water penetrates small cracks in the asphalt surface. As temperatures fluctuate, the water expands and contracts beneath the pavement, weakening the foundation. Over time, traffic pressure causes the damaged asphalt to break apart, creating a pothole.

This process is especially common in areas that experience freezing temperatures, heavy rainfall, or poor drainage.

Learn more about protecting your pavement with Asphalt Repair Services.

Poor Drainage Accelerates Damage

Improper drainage is one of the leading causes of potholes. Standing water weakens the base layer underneath the asphalt, making the surface more vulnerable to cracking and collapse.

Professional paving contractors can evaluate drainage issues and recommend long-term solutions that help prevent recurring pavement damage.

Visit Asphalt Paving Services to learn more about proper asphalt installation and maintenance.

Heavy Traffic and Aging Asphalt

Asphalt naturally deteriorates over time due to sunlight, weather exposure, and vehicle traffic. Commercial parking lots and driveways that support heavy vehicles often experience faster wear and tear.

Without routine maintenance, small cracks can quickly develop into larger structural problems.

Preventative Maintenance Matters

Regular sealcoating, crack filling, and inspections can significantly extend the life of asphalt surfaces. Addressing minor damage early helps prevent costly pothole repairs and improves overall pavement performance.

Explore Sealcoating Services and our contact us to keep your asphalt surface durable, safe, and visually appealing year-round.

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J&J Asphalt | Reading, PA