How often should we grade?

Once in early spring after frost-out is standard. High-traffic roads may need a second mid-season grading. Roads with recurring chloride programs need less frequent grading.

When in the year is best for chloride application?

Late spring through early summer, after grading and once surface temps are warming. The chloride binds the fines while the surface is at peak workability.

How do we know when to re-gravel?

When the original surface aggregate is exposed and fines are no longer present, it's time. Most roads hit that point every 3–7 years depending on traffic.

Gravel Road Maintenance Guide (Grade, Crown, Chloride, Re-Gravel)

10 min read·June 11, 2026

The four-step annual cycle

Healthy gravel roads follow a predictable annual maintenance cycle. Spring grading restores crown and removes washboard. Early-summer calcium chloride application binds the regraded fines into a tight, dust-free surface. Mid-season touch-ups address localized failure. Periodic re-graveling (typically every 3–7 years) replaces lost material.

Agencies that skip any step accelerate road failure. The most common skip is calcium chloride application — and the result is accelerated washboarding, faster fine loss, and roads that need more grading more often.

Why grading without chloride doesn't work long-term

Grading alone restores profile but loosens fines. Without binding (chloride), traffic and weather strip the fines out within weeks, exposing the larger aggregate and creating the washboard pattern that grading was meant to fix. Within months, you're regrading the same road again.

Re-graveling — when to invest

Even well-maintained gravel roads lose material to runoff, wind, and traffic over time. Re-graveling restores the lost depth, typically every 3–7 years depending on traffic and climate. Roads under recurring chloride programs lose material more slowly and need re-graveling less often.

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