Drainage Gravel
Proper drainage protects foundations and prevents erosion. Angular gravel like #57 stone is the backbone of French drains, dry creek beds, and general drainage solutions.
Material Cost
$20 – $100/ton
Typical Depth
3" – 12"
Recommended Types
6 gravel types
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Recommended Materials
The standard choice for French drains and drainage trenches. Angular shape creates void space for water flow.
Mechanically cleaned stone with no fines — the ideal drainage aggregate. Commonly specified for French drains, septic systems, and foundation backfill.
Larger sizes (#3, #4) used for deep drainage beds behind retaining walls and foundations.
Use 2-4 inch river rock around downspouts and in dry creek beds to slow water velocity and prevent erosion.
Fine backfill around drain pipes. Small size fills voids while maintaining water flow.
Large heavy stones for severe erosion control. Protects shorelines, stream banks, and culvert outlets from water damage.
Drainage Gravel Cost Breakdown
| Material | Per Ton | Per Yard |
|---|---|---|
| #57 Gravel | $20 – $35 | $25 – $45 |
| Washed Gravel | $25 – $45 | $30 – $60 |
| Crushed Stone | $20 – $40 | $25 – $55 |
| River Rock | $40 – $100 | $45 – $120 |
| #89 Stone | $22 – $40 | $28 – $50 |
| Rip Rap | $35 – $80 | $45 – $100 |
Prices vary by region, availability, and order size.
Proper drainage is essential for protecting foundations, preventing erosion, and keeping landscapes healthy. Gravel is the backbone of most residential and commercial drainage systems because it allows water to flow freely while filtering out debris.
French drains use a perforated pipe surrounded by #57 gravel wrapped in filter fabric. The gravel allows groundwater to seep into the pipe while preventing soil from clogging the system. This setup redirects water away from foundations, retaining walls, and low-lying areas.
For general drainage solutions, #57 and #67 gravel are the standard choices. Their angular shape and consistent sizing create ample void space for water flow. Around downspouts and in rain gardens, larger river rock (2-4 inches) slows water velocity and prevents erosion.
Dry creek beds combine drainage function with landscape beauty. Line the channel with filter fabric, add a base of #57 gravel, and top with decorative river rock. Grade the bed to direct water toward a suitable outlet point like a storm drain or rain garden.
Published February 11, 2026
Frequently Asked Questions
What Size Gravel for Driveway?
A well-built gravel driveway uses three layers of progressively smaller stone:
Base Layer (4 inches)
Use #3 stone (1-2 inches) or #4 stone (1.5-3 inches). These large angular stones create a stable foundation and won't sink into soft soil. A geotextile fabric under this layer prevents the stone from migrating into the subgrade.
Middle Layer (4 inches)
#57 stone (3/4 to 1 inch) is the standard choice. It fills the gaps in the base layer, adds stability, and provides a transition to the finer top layer.
Top Layer (2-3 inches)
#8 gravel (3/8 to 1/2 inch) or crushed limestone creates a smooth driving surface. Some homeowners prefer #411 (a blend of #57 stone and stone dust) because the dust fills voids and compacts into a very firm surface.
What to Avoid
Avoid using pea gravel or river rock for driveways — their rounded shape means they never lock together and will constantly shift under tires, creating ruts.
Gravel vs Concrete: Which Is Better?
Gravel and concrete each have clear advantages depending on your priorities, budget, and project requirements.
Where Gravel Wins
A gravel driveway costs $1-$3 per square foot installed, while concrete runs $5-$10 per square foot. Gravel can be a DIY project; concrete requires professional installation. Gravel is permeable and handles drainage naturally; concrete requires slopes and drainage planning.
Where Concrete Wins
A properly installed concrete driveway lasts 25-30 years with minimal upkeep. Gravel driveways need periodic regrading, rut filling, and top-layer replenishment. Concrete provides a smooth, clean surface year-round; gravel can be dusty in summer and difficult to plow in winter.
Cold Climate Considerations
For driveways in cold climates, concrete can crack from freeze-thaw cycles and road salt damage. Gravel handles freezing and thawing without damage but is harder to snow-plow.
Which Should You Choose?
Choose gravel when budget is a priority, the driveway is long (rural properties), drainage is a concern, or you want a rustic aesthetic. Choose concrete for short suburban driveways, wheelchair accessibility, frequent snow removal, and a modern look.
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