Gravel road construction typically costs $8 to $20 per linear foot for a properly built base and surface, or $2 to $5 per square yard for periodic grading and re-graveling maintenance on an existing road. Treat every figure on this page as a starting point rather than a quote: a gravel road's long-term performance depends almost entirely on crown and drainage, not on the depth of gravel alone, and a flat road without proper crown will develop ruts and potholes regardless of how much material is on it.
A properly built gravel road has a crowned surface, meaning it's slightly higher in the center than at the edges, so water sheds off to either side into drainage ditches rather than sitting on the road surface and softening the base underneath.
What actually drives the price
Subgrade preparation determines how well the road holds up over time. Simply spreading gravel over existing soil without proper grading and compaction of the subgrade underneath leads to a road that deteriorates quickly, especially in wet seasons or under regular heavy vehicle traffic.
Drainage ditches alongside the road are not optional extras — they're what keeps water from undermining the road surface from the sides. A road built without adequate ditching often needs repeated maintenance regrading far more often than one with a properly designed drainage system.
Length and width scale cost directly, but so does intended use. A private lane meant for occasional vehicle access has different depth and base requirements than a farm road meant to carry loaded trucks or heavy equipment regularly, and undersizing the base for the actual traffic load leads to faster deterioration.
Gravel type and depth matter for durability. A road built with proper base aggregate and a finish layer of appropriately sized gravel holds up far longer than one built with a single layer of whatever material is cheapest, which tends to wash and rut faster.
Ongoing maintenance grading
Even a well-built gravel road needs periodic maintenance grading to redistribute material, maintain crown, and fill developing low spots before they become potholes. Ask whether the same operator handles this maintenance work on a recurring basis, since a road maintained regularly costs far less over its lifetime than one rebuilt periodically after neglect.
A short checklist before you book
Confirm subgrade will be properly graded and compacted before gravel goes down, not just spread over existing soil. Confirm drainage ditches are part of the plan, not treated as optional. Discuss intended traffic load to set the right base depth. Ask about gravel type and layering for the finish surface. Set up a maintenance grading schedule rather than waiting until the road deteriorates.
Costs vary by site conditions. Use the ranges here to sanity-check what you're quoted, then get a direct price for your own property. If your project needs road base or surface gravel, Natural Stone Source Ontario can help with supply.
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