Slope Stabilization & Landslide Repair
GRW stabilizes steep rock and soil slopes. We reinforce and support slopes so movement is controlled and people, corridors, and structures stay protected.
Understanding Slope Stabilization
What is slope Stabilization?
Slope stabilization is the reinforcement of rock and soil slopes, cuts, and embankments using structural systems
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When slopes fail, time isn’t on your side. That’s why Global Rock Works mobilizes fast — often assessing your site within 24 hours and deploying stabilization crews within days. After a no-obligation site review, we will recommend a solution and deliver a proposal.
From remote mountain roads to active mining corridors, our team has stabilized thousands of slides — on schedule, within budget.
Before & After Slope Stabilization
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Featured Projects
Stabilizing the Abbot Hut
When Canada’s highest permanent structure was at risk of collapsing, we provided slope stabilization to secure this historic, heli-access-only public recreation site.
Facilitating the Passage of At-Risk Fish Species
A massive landslide obstructed the migratory path of several wild salmon species, putting them at risk of extinction and causing significant economic impacts.
California Route 36 Emergency Landslide Repair
After a landslide sent debris across both lanes of Highway 36, GRW provided emergency hazard mitigation and drapery installation to restore swift access to the roadway.
Slope Stabilization Frequently Asked Questions
What is Slope Stabilization
Slope stabilization is all about making steep or unstable ground safe, secure, and resistant to movement. When a hillside starts to crack, slide, or show signs of erosion, it doesn’t just “fix itself.” Water, gravity, and weather keep working away at it—until something gives. Slope stabilization steps in before that happens.
Working with partnering engineers, geologists, and hands-on construction teams, slope stabilization reinforces the hillside so it stays exactly where it’s supposed to. That might mean installing soil nails to anchor the slope, adding shotcrete for extra surface support, building retaining structures, or improving drainage so water can’t undermine the ground from within.
At its core, slope stabilization protects people, property, and infrastructure from landslides and rockfall. Whether it’s a residential backyard or a massive mountainside above a highway, the goal is the same: create a long-lasting, rock-solid solution that keeps the slope stable and the area safe.
What causes slope failure?
Slope failure can occur due to heavy rainfall, poor drainage, seismic activity, human excavation, vegetation loss, or natural weathering of soil and rock. Often, it’s a mix of these factors that weakens the slope’s structure over time.
How do you determine if a slope is unstable?
Signs of slope instability include visible cracks in the ground, leaning trees or poles, bulging soil at the base, water seepage, or sudden changes in slope shape. A geotechnical assessment is usually required to confirm the risk level.
What are the most common slope stabilization methods?
Some widely used techniques include:
- Retaining walls (gravity, cantilever, or anchored)
- Soil nailing
- Shotcrete
- Geotextiles and erosion control mats
- Drainage improvements
- Regrading or terracing
- Vegetation and bioengineering solutions
What’s the difference between temporary and permanent stabilization?
Temporary stabilization is used during construction to prevent erosion or movement (like with silt fences or sprayed mulch).
Permanent stabilization provides long-term protection, using engineered solutions such as soil nails, retaining walls, or drainage systems.
Our Approach To Landslide Repair
Anchored mesh solutions aren’t always sufficient to stabilize landslides. On sites that require more robust solutions, GRW is prepared to install soil nails and tieback walls in various ground conditions. These walls are often used to stabilize and rebuild roadways at a reduced schedule and lower cost than other solutions.
Retaining Wall Rehabilitation
Aging retaining walls can fail for multiple reasons, including undermining, deterioration, and impacts by unstable ground. Rather than undergoing extensive and costly remove-and-replace projects, stabilizing and/or rehabilitating an existing wall can prolong its useful life and save the asset owner significant costs. GRW applies its specialized expertise in installing anchors and diverse facing elements to stabilize and protect these critical structures.
Roadway Stabilization & Buildouts
Roads and highways, particularly in rural and mountainous regions, are highly vulnerable to landslides. These natural events can wipe out entire sections of roadways, posing significant safety risks and interrupting traffic flow. At GRW, we specialize in stabilizing and reconstructing damaged roadways by securely anchoring the affected areas. Depending on the extent of the damage, we utilize Mechanically Stabilized Earth (MSE) walls, form walls, and shotcrete facings to restore and reinforce the roadway, ensuring long-term stability and public safety.
Geotextile
Unstable slopes and shifting soil can compromise property safety and structural integrity. Rather than opting for disruptive and expensive excavation, GRW utilizes high-performance geotextiles to reinforce the earth from within. These advanced fabrics provide essential filtration, drainage, and tensile strength, effectively locking soil in place and managing subsurface water flow.
By integrating these geosynthetics with our precision anchoring and rock-facing systems, we provide a cost-effective alternative to total reconstruction. Our approach stabilizes the existing.