ScourMicropiles™

Scour micropiles

ScourMicropiles™

GeoStabilization International uses ScourMicropiles™ to protect bridge foundations, culverts, open-bottom structures, and stream-adjacent infrastructure from scour and streambed erosion across Canada. Scour is one of the leading causes of foundation instability in waterways, especially in regions affected by spring runoff, high-flow events, freeze–thaw cycles, and changing hydrologic conditions.

ScourMicropiles™ offer an engineered, low-disturbance solution that reinforces vulnerable streambeds while supporting long-term infrastructure reliability and public safety.

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What Are ScourMicropiles™ and Why They Work

ScourMicropiles™ are a specialized application of micropile technology designed specifically for scour mitigation. Traditional micropiles are small-diameter structural elements installed to transfer loads to deeper competent soils or bedrock. ScourMicropiles™ adapt that concept to stabilize eroded or erosion-prone streambeds around structural foundations and hydraulic crossings.

Scour occurs when flowing water removes sediment around abutments, piers, or other stream-adjacent structures. Over time, this can create voids and loss of support that leads to settlement, tilting, or structural distress. ScourMicropiles™ help reduce these risks by reinforcing the streambed with a structural framework that limits particle displacement during high-energy flow conditions.

Installation for Sensitive Waterways and Limited Access Sites

Many Canadian waterways involve restricted access, regulated riparian zones, and the need to minimize environmental disturbance. ScourMicropiles™ can be installed using methods that reduce excavation and equipment footprint, which is especially valuable near streams, wetlands, and erosion-sensitive corridors.

In select applications, ScourMicropiles™ may be installed using GSI’s Soil Nail Launcher™, which allows rapid placement of steel elements with minimal disruption compared to conventional drilling operations. This approach can be useful for remote sites, confined crossings, and projects where limiting site disturbance and maintaining safer work zones are key priorities.

Built for Real Waterway Conditions

After ScourMicropiles™ are installed, properly graded alluvium or rock can be placed to rebuild scour holes, restore streambed profile, and support stable hydraulic function. Depending on sediment type and flow conditions:

  • Larger particles can interlock within the micropile spacing to create a stable matrix
  • Graded rock can be placed to reduce local erosion and support infill over time
  • The system can be engineered to handle seasonal flow variation and debris movement

ScourMicropiles™ are commonly used to support:

  • Bridge abutments and piers
  • Culverts and open-bottom crossings
  • Stream-adjacent retaining systems and embankments
  • Utility corridors and waterway crossings
  • Channels impacted by flooding, runoff, or snowmelt

ScourMicropiles™ can also be integrated with other stabilization systems, including Geosynthetically Confined Soil® (GCS®) Walls, when projects require combined slope and water-adjacent protection.

Eroded road shoulder next to a river.

Our Solutions

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If your bridge, culvert, or stream crossing is showing signs of scour, erosion, or loss of support, GeoStabilization International can help. Our engineers and field teams deliver engineered ScourMicropiles™ solutions designed to protect foundations, restore stability, and improve long-term performance in Canadian waterways.

Contact us today to request a site assessment and discuss a stabilization plan that prioritizes safety, constructability, and long-term reliability.

855.559.5217

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    How Can We Help?

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    How Can We Help?

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    • Project Info

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