
Mining Infrastructure
Active
Great Dyke Heavy Mining Haul Corridor & River Crossing
Midlands
Client
Mining sector client
Contract Type
FIDIC Red Book
Timeline
2024 - 2025
Industry
Mining
Timeline
2024 - 2025
The Challenge
Maintaining continuous mining haulage operations with zero downtime while constructing culvert crossings through black cotton expansive clay soils prone to massive volumetric seasonal shrinkage and heave.
Engineering Approach
Chemical stabilization with 4% road lime and cement blend on subgrade, followed by high-strength non-woven geotextile separation layers. Precast culvert elements installed in 48-hour coordinated diversion windows.
Scope Breakdown
Clearing, dynamic subgrade stabilization, importation of G1 crushed rock base, 28km heavy pavement engineered for 60-ton axle-load ore trucks, 6 multi-cell structural culverts.
Outcomes & Impact
- Haul cycle times reduced by 35% across operational sections.
- Zero wet-season road closures logged in active sections.
- Zero lost-time injuries achieved across continuous 24/7 site operations.
Operational Gallery

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