Does Gravel Wash Away?

Which Gravel Washes Away? Gravel can wash away during heavy rains, but proper installation and material selection greatly reduce this risk. Smaller, lighter gravel (like pea gravel) is more prone to washing than larger, heavier stone (like river rock or #57 gravel). Angular crushed stone interlocks and resists movement better than rounded stones. How to Prevent Washout To prevent gravel from washing away: Ensure proper grading so water flows where you want it — not across your gravel surface Install edging along all borders For driveways, create a crown (slight hump in the center) so water drains to the sides Slopes and Drainage On slopes, use crushed stone rather than rounded gravel, and consider installing a geogrid (honeycomb-shaped stabilizer) underneath. French drains or swales can redirect water before it reaches your gravel areas. If erosion is recurring, the underlying issue is usually poor drainage design rather than the gravel itself. Addressing water flow patterns is more effective than simply adding more gravel.

Decomposed Granite vs Pea Gravel

Side-by-side comparison of Decomposed Granite and Pea Gravel to help you choose the right gravel for your project.

Overview

Decomposed Granite

Granite that has weathered to the point of breaking into small pieces and fine particles. Creates a natural, rustic look that blends beautifully with desert and Mediterranean landscapes. When compacted, it forms a firm yet permeable surface.

Pea Gravel

Small, rounded stones about 3/8 inch in diameter. Smooth texture and available in natural earth tones. Pea gravel is one of the most popular decorative gravels for residential projects thanks to its comfortable feel underfoot and attractive appearance.

Common Uses

Decomposed Granite

✓ Patios
✓ Pathways
✓ Driveways
✓ Xeriscaping
✓ Ground cover
✓ Bocce courts

Pea Gravel

✓ Patios
✓ Walkways
✓ Playgrounds
✓ Drainage
✓ Landscaping beds
✓ Garden paths

Pros & Cons

Decomposed Granite

+ Compacts into a firm walking surface
+ Natural, rustic appearance
+ Permeable — allows water infiltration
+ Low cost
+ Ideal for drought-tolerant landscaping

− Can get muddy in heavy rain
− Tracked indoors on shoes
− Decomposes further over time and needs replenishing
− Limited color options
− Not suitable for high-traffic vehicle areas

Pea Gravel

+ Affordable and widely available
+ Smooth and comfortable underfoot
+ Excellent drainage
+ Attractive natural colors
+ Easy to spread and install

− Shifts and migrates easily
− Not ideal for driveways (poor compaction)
− Requires edging to stay contained
− Can be tracked indoors
− Difficult to shovel snow from

Cost Comparison

Measure	Decomposed Granite	Pea Gravel
Per ton	$25 – $45	$25 – $50
Per cubic yard	$30 – $50	$30 – $60

Sizes & Colors

Decomposed Granite

Decomposed granite is a mix of fine particles and small chunks, typically 1/4" and smaller. Colors include gold, tan, brown, gray, and reddish-brown depending on the granite source. Stabilized DG (with resin binder) creates an even firmer surface.

Pea Gravel

Pea gravel ranges from 1/4 to 3/8 inch in diameter. It comes in natural earth tones including tan, brown, white, gray, and rust. Some suppliers offer mixed-color blends. The stones are naturally rounded and smooth from water erosion.

Published February 11, 2026

Compare prices from local suppliers

Get quotes from gravel suppliers near you to find the best deal.

Find Suppliers