What Is Alligator Cracking And How Can I Repair It

If you’ve noticed a web of interconnected cracks on your asphalt driveway, parking lot, or road surface in Bulverde, TX, you may be dealing with alligator cracking also known as crocodile cracking. This distinctive pattern resembles alligator skin and signals underlying structural failure.


More than a cosmetic flaw, it indicates deeper structural problems in your asphalt pavement that can lead to costly repairs if ignored. This comprehensive guide explains the causes of alligator cracking, how to repair cracks, and the best ways to prevent further damage.

What Alligator Cracking Looks Like on Asphalt

Alligator cracking is characterized by interconnected cracks forming a distinctive pattern similar to reptile scales or shattered glass. Unlike small cracks, this type of cracking often appears in high-traffic areas of pavement and spreads quickly.
It is often seen in:

  • Residential driveways
  • Business parking lots
  • Local roads and rural highways

These interconnected cracks are a sign of asphalt deterioration and should be addressed promptly to maintain structural integrity.

Causes of Alligator Cracking

The underlying causes of alligatoring include:

  1. Heavy Traffic Loading
    Constant pressure from vehicles, especially delivery trucks, weakens the surface and leads to fatigue cracking.
  2. Poor Drainage
    Water infiltration from poor drainage softens the subgrade and base material, creating depressions and accelerating deterioration.
  3. Low-Quality Asphalt or Improper Installation
    Insufficient compaction, weak support beneath the asphalt, or poor-quality hot mix increases the risk of cracking.
  4. Temperature Fluctuations
    Freeze-thaw cycles, summer heat, and seasonal rain stress the surface and cause structural failure due to expansion and contraction.

Why You Should Not Ignore Driveway Cracks

Ignoring cracks leads to:

  • Safety hazards from loose chunks of asphalt and concrete
  • Faster asphalt deterioration from infiltration and debris
  • More costly repairs if left untreated

Timely crack sealing and sealcoating can help extend pavement life and prevent areas from becoming unusable.

Short-Term Crack Repair Solutions

For minor issues:

  • Crack Sealing – Apply crack filler or crack sealer to block moisture and slow further damage.
  • Sealcoating – Adds a protective layer to the asphalt surfaces, providing a cost-effective preventive measure.

These are temporary and work best to prevent alligator cracking before it worsens.

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Long-Term Fixes for Alligator Cracking

If damage is severe, use:

  • Full-Depth Patching – Remove the damaged area, repair the base material, and install new asphalt.
  • Cold Patch or Hot Mix Asphalt – For partial fixes, apply patch materials to the affected zone.
  • Resurface – Overlay with fresh mix asphalt after proper cleaning and preparation.

Professional installation ensures structural integrity and can extend the life of your driveway or parking lot.

DIY vs. Professional Asphalt Repair

DIY repairs for small cracks may use store-bought repair material and a squeegee.
However, to repair alligator cracking properly, hiring experts is recommended because:

  • Surface-only fixes won’t solve underlying structural issues
  • Professionals have access to commercial-grade sealant, slurry, and patch products
  • Contractors understand local soil conditions and paving services requirements

The doityourself.com community forums often discuss crack repair, but for Bulverde’s climate, professional help is safer.

Preventing Alligator Cracking

Asphalt maintenance can help extend pavement life:

  • Perform regular inspection to catch small cracks early
  • Sealcoat every 3–5 years to protect from water infiltration and oxidation
  • Ensure proper drainage to prevent depression formation
  • Limit high-traffic loads on weak spots
  • Use repair alligator cracking methods promptly to prevent further damage

Why Choose C. Brooks Paving in Bulverde, TX

We offer:

  • Four generations of asphalt paving experience
  • Expertise in sealcoating, driveway crack repair, and installation
  • Knowledge of South Texas weather’s effect on asphalt pavement
  • Quality sealing jobs that protect against accelerates deterioration

From crack repair to full-depth replacements, our team delivers results that help extend pavement life.

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Final Thoughts

Alligator cracking is a warning sign that should never be ignored. Addressing underlying structural problems early ensures a longer lifespan for your asphalt driveway and avoids costly repairs. Whether you need a quick patch or a full reconstruction, professional repair services are the best way to maintain safety and value.

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