Ottawa Trillium Line – Caissons Project
Marathon Underground completed deep foundation drilling and caisson installation for Ottawa’s Stage 2 Trillium Line transit expansion project.
Earth Works & Infrastructure
Canada-Wide Solutions
Marathon Underground delivers comprehensive earth works and civil infrastructure services for projects across Canada. From early site preparation to complex excavation and utility installation, our teams provide the equipment, expertise, and engineering support required to execute large-scale infrastructure projects safely and efficiently.
Our capabilities include mass and bulk excavation, grading, rock excavation, utility installation, and specialized earth moving operations in both urban and remote environments.
From municipal infrastructure to large industrial developments, we deliver dependable earth works solutions that support the successful construction of critical underground and surface infrastructure.
Our Earth Works & Infrastructure Capabilities
Mass / Bulk Excavation
Mass or bulk excavation forms the foundation of many civil infrastructure projects. Marathon performs large-scale excavation in both soil and rock to prepare sites for infrastructure construction, utilities, foundations, and structural systems.
Using a combination of heavy equipment, engineered excavation strategies, and efficient material handling processes, we safely manage large volumes of earth while maintaining project schedules.
Common Applications
- Infrastructure site preparation
- Building and facility foundations
- Mining and industrial site development
- Tailings pond and dyke construction
- Large-scale earth moving and grading
Detailed & Confined Space Excavation
Projects in dense urban environments or restricted spaces often require specialized excavation techniques and equipment. Marathon has extensive experience performing excavation in confined or highly constrained environments where precision and safety are critical.
Our teams implement engineered excavation plans that address ventilation, structural protection, and access challenges while maintaining safe working conditions.
Common Applications
- Excavation adjacent to existing structures
- Confined urban construction sites
- Utility tie-ins and underground infrastructure work
- Excavation within shafts or deep pits
- Projects with limited site access
Rock Excavation & Controlled Rock Removal
Marathon provides advanced rock excavation solutions for projects involving challenging ground conditions. Our expertise includes controlled drilling, blasting, hydraulic rock splitting, rock grinding, and mechanical breaking technologies.
These methods allow us to safely remove rock in environments where vibration control, precision, or environmental considerations are critical.
Common Applications
- Infrastructure excavation in bedrock
- Controlled rock removal in urban environments
- Excavation for tunnels, shafts, and foundations
- Non-explosive rock removal near sensitive structures
- Projects with strict vibration or noise limits
Utility Installation (Wet & Dry Utilities)
Our teams support the installation of essential underground infrastructure, including both wet and dry utilities required for municipal and industrial development.
We coordinate excavation, trenching, installation, and backfilling to ensure safe and efficient integration of underground utility networks.
Common Applications
- Water and sewer infrastructure
- Stormwater systems
- Electrical and telecommunications conduits
- Gas and energy distribution lines
- Utility corridor development
Precision Excavation in Sensitive Environments
Some projects require excavation methods that minimize disturbance to surrounding structures, communities, or historic sites. Marathon specializes in low-impact excavation techniques designed for environments with strict vibration, noise, or preservation requirements.
Our teams carefully plan excavation sequences and use specialized equipment to protect surrounding infrastructure while maintaining project efficiency.
Common Applications
- Heritage building restoration projects
- Excavation near sensitive infrastructure
- Urban projects with vibration restrictions
- Excavation near railways or active facilities
- Low-impact construction environments
Blasting
Controlled blasting is used to fracture and remove hard rock where mechanical excavation methods are not practical or efficient. Marathon performs engineered blasting operations using carefully designed drill patterns, charge placement, and timing sequences to achieve controlled rock breakage while maintaining site safety.
Blasting plans are developed to manage vibration, air overpressure, and fly rock in accordance with regulatory requirements and project constraints. This controlled approach allows efficient rock excavation while minimizing impact to nearby structures, infrastructure, and surrounding environments.
Common Applications
- Rock excavation for infrastructure corridors
- Roadway and transportation corridor development
- Foundation excavation in hard bedrock
- Mining and industrial site preparation
- Large-scale rock removal for civil construction
Trusted Across Canada
With decades of experience supporting complex civil and underground infrastructure projects, Marathon Underground has built a reputation for delivering reliable earth works and excavation solutions in a wide range of environments.
From dense urban construction zones to remote industrial sites, our teams bring the equipment, engineering expertise, and operational discipline required to execute projects safely, efficiently, and to exact specifications.
Featured Earth Works & Infrastructure Projects
Real-World Results. Large-Scale Civil Expertise.
From major infrastructure developments to complex excavation in dense urban environments, Marathon Underground has successfully delivered earth works and civil infrastructure projects across Canada. Each project demonstrates our ability to safely manage mass excavation, rock removal, grading, and underground utility installation while maintaining strict safety, precision, and efficiency. Explore a selection of projects that highlight how we support the construction of critical infrastructure from the ground up.
Why choose Marathon Underground?
National Reach & Local Knowledge
Our crews operate across Canada with a deep understanding of regional ground conditions, permitting requirements, and construction standards.
Turnkey Civil Solutions
From site preparation and excavation to utility installation and grading, we provide integrated earth works services that support the entire construction process.
Safety-Driven Culture
Marathon maintains rigorous safety protocols, comprehensive training programs, and strict operational procedures to ensure every project is executed safely.
Proven Experience
With decades of experience delivering complex excavation and infrastructure projects, Marathon is trusted by municipalities, engineers, and developers across the country.
Contact Us and Let’s Talk Earth Works & Infrastructure
Marathon Underground Constructors Corporation has been a trusted leader in underground construction and civil infrastructure for over four decades.
From mass excavation and rock removal to complex infrastructure development and utility installation, our teams deliver the expertise, equipment, and experience required to successfully execute large-scale earth works projects across Canada.
Contact Marathon Underground