AFDE Partnership

AFDE Partnership is a group of four construction companies building the Generating Station and Spillways (GSS) Civil Works portion of the Site C dam. The partnership consists of global and local leaders in complex infrastructure construction: Aecon, Flatiron, Dragados, and EBC.

The partners bring a breadth of experience in dam and hydropower construction, combining their skills to deliver the project safely and to the highest quality standards. Learn more about the partners

BC Hydro awarded the GSS Civil Works contract for the Site C project to AFDE Partnership in March 2018. The key components of the contact include the generating station (also called the powerhouse) and penstocks, spillways and power intakes, and related ancillary construction work. Learn more about what is involved in constructing the GSS Civil Works.

Our Partner Companies


Aecon Group Inc. (TSX: ARE) is a Canadian leader and partner-of-choice in construction and infrastructure development. Aecon provides integrated turnkey services to private and public-sector clients in the Infrastructure, Energy and Mining sectors and provides project management, financing and development services through its Concessions segment.

Aecon has also played an integral part in building the John Hart Generating Station in Campbell River BC, as well as the Port Mann Tunnel project in Vancouver, BC.

For more information, please visit and follow us on Twitter at @AeconGroup.


Since 1947, Flatiron has been active in the civil construction industry, specializing in large-scale transportation and heavy civil projects throughout the United States and Canada. Flatiron currently has nearly $4 billion in future work and is consistently recognized as one of the leading infrastructure contractors in North America. The company specializes in value engineering – working to find the most cost-effective, safe, and timely way to meet project challenges.

Flatiron has extensive experience developing innovative construction methods using cofferdams, trestles, floating concrete tubs, scaffold, formwork, trusses, and gantries. From complicated, critical crane picks to using land-based cranes that float, raising and lowering cofferdams, Flatiron’s engineers find the solution for any complex scenario. The company is currently constructing the Ruskin Dam and Powerhouse in Mission, BC as well as the Calaveras Dam Replacement project in San Francisco, and the New Champlain Bridge Corridor in Montreal, QC.

Flatiron’s parent company, HOCHTIEF, is one of the largest international civil and tunneling contractors in the world and generated sales of approximately EUR 20 billion in 2016.


Established in 1941, Dragados is the construction arm of the ACS Group. As a major international contractor, Dragados has specialized in complex and challenging projects, such as the construction, rehabilitation, and maintenance of dams, powerhouses, hydroelectric structures, railroads, highways, bridges, tunnels, and other infrastructure around the world.

Dragados is currently involved in the delivery of more than $16 billion of infrastructure projects across Canada. In BC, Dragados is nearing the completion of the rehabilitation works on BC Hydro’s Ruskin Dam. The company has built over 250 hydro projects worldwide and considers the hydro sector to be one of its key strengths and core competency.


A Canadian construction leader since 1968, EBC executes projects according to the highest industry standards. Both diversified and specialized, EBC performs large scale projects in the buildings, civil works, and mining sectors. EBC’s teams have built over $15 billion of construction works. EBC’s success is assured by an open and collaborative approach with all partners and clients.

EBC has participated in over 10,000 megawatts of hydroelectric projects across North America in the last 25 years. A leader in the energy industry, EBC has been awarded over $4 billion in major civil works contracts for hydro corporations and developers, including several dams, tunnel and power plant projects, which EBC has made its area of expertise across Canada. EBC took part in some of Canada’s largest hydroelectric projects, namely La Grande-2, La Romaine, Eastmain, Upper Lillooet, Wuskwatim, and Chaudiere Hydro.

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