The Tunnelling Department at CCI offers our clients a full range of tunnelling-specific services to efficiently support owners and contractors in all aspects of their projects from conception to completion. 

During a project’s planning, engineering, and construction stages, CCI’s 360-degree approach allows the tunnelling team to come together to identify and mitigate potential risks and issues with practical problem-solving. 
Our highly specialized team provides our clients with the information and resources to strategically execute the scope of work, keeping the project’s best interest as the key focus point. Both our onsite and office-based resources are available to service the project day and night to meet priority timelines.  
Our team has extensive experience with different tunnelling techniques, shaft solutions, material selections and geotechnical conditions. This also includes understanding the needs and nuances of both the municipal and oil and gas industry requirements. 
We target a supportive and collaborative approach with our clients to maintain a transparent relationship with a clear direction for each project milestone.  

Services include
  • FEED and Detailed Design  
  • Geotechnical investigation and Baseline Reports  
  • Crossing alignment evaluation and selection 
  • Evaluation of constructability and feasibility 
  • Jacking force calculations and stress calculations 
  • Jacking pipe selection  
  • Engineering Design Specifications (EDS) 
  • Equipment suitability assessments 
  • Cost estimate and schedule preparation 
  • Shaft type selection 
  • Reinforced Concrete Designs 
  • Thrust block, headwall, and soft eye design 
  • Preparation of detailed site, shaft, and alignment drawings 
  • Constructability risk assessments 
  • Contingency and mitigation planning 
  • Construction Readiness support  
  • Factory acceptance testing 
  • Technical construction support 
  • Field Engineering/ Onsite Engineer  
  • Prompt office-based services (24/7) to support construction priorities     
  • Construction compliance services 
Tunnelling Engineering

Case Studies

City of Calgary | Green Line Tunnelling

City of Calgary

Within the scope of the project, two crossing locations have been completed using microtunnel methodology.
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Coastal GasLink | Tunnelling Engineering

Coastal GasLink

CCI was requested to provide desktop detail design, equipment inspection, construction planning and onsite field engineering support.
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Metro Vancouver | Tunnelling Engineering

Metro Vancouver

The overall project includes a trenchless installation beneath two enclosed reservoirs launching from the east side, tunnelling to a receiving point on the west side of the reservoirs.
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