Intermediate Wharf Construction at the Port of Saint John

Overview of the Port of Saint John Wharf Expansion 

Pomerleau was awarded a lump sum contract by the Port of Saint John to execute major construction works as part of the port’s infrastructure expansion. The project involved quay extension, surface works, and landside improvements, enhancing intermodal flow and cargo operations. 

Scope of this construction site 

Package 5 and Package 5A – Wharf Construction and Commissioning 

Crane-Rail Foundation: Construction of a 300-metre-long crane-rail foundation.  

Drainage and Utilities: Installation of a new drainage pipe system and power supply infrastructure for the quay. 

Paving and Surface Works: Full paving of the new wharf surface for durability and heavy-equipment operation. 

Steel and Precast Construction: Integration of 33 steel piles, 6 precast beams, and 33 precast slabs to extend the existing wharf. 

Concrete Structures: Installation of an 800-m² concrete slab, a capping beam, and two pile bent caps. 

Landside Works and Terminal Upgrades 

Railyard Expansion: Extension of the existing railyard to increase cargo capacity and improve logistics efficiency. 

Cargo Area Optimization: Upgrades to container and bulk cargo zones. 

Access and Routing: Improvements to truck access points and terminal circulation. 

Warehouse Modernization: Updates to meet modern operational needs, supporting enhanced terminal operator capabilities. 

The Port of Saint John relied on Pomerleau’s strategic expertise to maintain terminal flexibility and integrate semi-automatic clearance technologies and cargo tracking systems. 

Tailored Methods for Maritime Conditions 

Pomerleau leveraged its marine construction experience, especially in deep foundation works, to adapt to the unique challenges of the Bay of Fundy, known for having the highest tides in the world. 

“Our Methods team developed customized solutions for both underwater and above-water work, accounting for the extreme tidal conditions,” explained Project Manager Cedrik Vallée. 

Environmental Protection Measures 

Pomerleau implemented proactive environmental protection strategies to safeguard underwater ecosystems throughout the construction process. 

 “Because much of the work was above water, we took special care to prevent any debris or material from contaminating the marine environment,” said Vallée. 

Construction Challenges Around the Port of Saint John 

Adapting to Extreme Tides 

The eight-metre tidal range in the Bay of Fundy required a flexible work schedule, with activities planned around tidal movements—often early in the morning or late in the evening. 

Innovative Construction Methods 

The internal Methods group designed specialized work techniques for marine environments, focusing on above-water execution to minimize disruption. 

Through its innovative approach, environmental care, and deep marine infrastructure expertise, Pomerleau successfully delivered a complex and strategic expansion for the Port of Saint John. This project strengthens the port’s operational capacity and supports its long-term role as a key hub for intermodal trade in Eastern Canada.