Riprap Design Basics: Stone Size, Filter Layer and Placement
Riprap stability depends on stone size, durability and the filter layer. Learn how flow velocity relates to stone weight, what the filter does and how to place it.
Sized by design
Rubble stone and riprap
Riprap
Riprap
Heavy stone armour protecting slopes, shorelines and the footings of water structures.
Sized by design
Properties and technical role
Riprap is a layer of large stones that resists erosion from water flow and waves. Stone size and weight are designed from the flow velocity or wave height.
Suitable graded stones placed on a filter layer stop the underlying soil washing out.
Applications
- Shoreline and river protection
- Embankment slope
- Water structures
Quality information
| Method | Test |
|---|---|
| ASTM C88 | Sulfate soundness |
| ASTM C127 / C128 | Density and water absorption |
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Inquire about Riprap
The grading on offer, stock and supply terms for this product are confirmed at the time of inquiry.