Colony Construction delivers hydroelectric construction services across Canada, fabricating and erecting structural steel for powerhouses, intake and spillway structures, switchyard buildings, and biomass energy facilities. From Yukon powerhouses to BC biomass plants, our steel is engineered for remote access, seismic demand, and the long service lives that power infrastructure requires.
Hydroelectric Construction Expertise
Colony Construction has completed more than 700 projects since 1985, including hydroelectric and biomass energy facilities in some of Canada’s most rugged and remote locations. Our portfolio includes the Mayo B powerhouse in Yukon and the Dockside Green biomass energy facility on Vancouver Island – projects that share the engineering rigour and long-life performance expectations characteristic of power infrastructure.
We fabricate powerhouse superstructure steel, crane runways for intake and generation halls, penstock support steel, switchgear and control buildings, and the ancillary buildings that support generation stations. Our work is engineered to CSA S16, coordinated with civil and mechanical/electrical disciplines, and detailed to the connection-level standards expected by owners and their engineers.
Hydroelectric steel must live for 50 to 100 years in wet, sometimes corrosive environments. Our detailing and protective coatings specifications reflect that service life expectation, and our QC program documents every weld, every coat, and every piece of traceable material. Long-life service means that the protective coating system has to be specified, applied, and inspected with real discipline – not because a specific paint spec is hard, but because every shortcut cuts years off the service life that the owner is paying for.
Colony also supports biomass, waste-to-energy, and other non-hydro renewable generation facilities where the engineering and fabrication demands are essentially the same: seismic resistance, heavy equipment support, long service life in aggressive environments, and coordination with civil and mechanical disciplines that drive the overall project schedule. The skills we built on large hydro programs transfer directly into those adjacent sectors.
Our Services for Hydroelectric
- Conventional Steel Construction – Heavy structural steel for powerhouse superstructures, crane runways, gantry supports, and switchyard buildings engineered to seismic and service-life demands.
- Engineering and Detailing – In-house connection design and 3D detailing coordinated with civil, mechanical, and electrical disciplines on complex powerhouse projects.
- Design-Build – Single-source delivery for ancillary buildings, control rooms, and support infrastructure on hydroelectric programs.
- Pre-Engineered Steel Buildings – Cost-effective MCC rooms, switchgear enclosures, warehouses, and maintenance shops serving generation sites.
- Cladding and Roofing Systems – High-performance envelopes engineered for wet, humid, and marine environments common at hydro generation facilities.
Challenges We Solve for Hydroelectric Clients
Remote Powerhouse Locations
Canadian hydro sites are often dozens or hundreds of kilometres from the nearest highway. Colony plans fabrication and shipping around seasonal access, barge windows, and winter-road schedules, packaging steel so erection crews have exactly what they need in the sequence they need it.
River Access and Civil Coordination
Powerhouse steel goes in tight alongside major civil work – tunnels, penstocks, tailrace structures, coffer dams. Our erection planning integrates with the civil schedule so our crews do not disrupt concrete placement and our steel lands the moment the civil side is ready.
Environmental Sensitivity
Hydroelectric sites often host sensitive riparian habitat, fish windows, and stringent environmental permits. We plan site logistics around environmental management requirements, limiting disturbance and working within permit conditions.
Seismic Requirements
Generation facilities are critical infrastructure and frequently classified as high-importance structures under the National Building Code. Our engineering and detailing team designs connections and lateral systems to the governing site-specific seismic hazard and documents seismic performance expectations for owner review.
Hydroelectric Projects
Mayo B Powerhouse
Colony fabricated and delivered structural steel for the Mayo B hydroelectric powerhouse in Yukon. The project showcased our ability to work in remote northern conditions with seasonal access and cold-weather erection discipline.
Dockside Green Biomass Energy Facility
On Vancouver Island, Colony supplied structural steel for the Dockside Green biomass energy facility, a district-scale renewable energy plant integrated with urban redevelopment. The project demanded careful coordination with the surrounding community and adjacent buildings.
Where We Build for Hydroelectric
Colony has active hydroelectric and power-infrastructure experience in British Columbia and the Yukon, and we are positioned to support hydro programs across Canada’s major generation regions.
Frequently Asked Questions – Hydroelectric Construction
What hydroelectric structures does Colony build?
Colony fabricates and erects powerhouse superstructure steel, crane runways, gantry supports, switchyard and control buildings, and ancillary infrastructure for hydroelectric projects. We also work on biomass and other renewable power facilities.
Can Colony deliver steel to remote hydro sites?
Yes. We routinely ship steel to remote Canadian sites by long-haul truck, barge, and winter road, and we plan fabrication around seasonal access so steel arrives when it is needed.
How does Colony handle high-importance seismic design?
Our engineering and detailing team designs connections and lateral systems to the governing site-specific seismic hazard, working within the high-importance category framework of the National Building Code.
Does Colony specify protective coatings for long-life hydro environments?
Yes. We specify and apply coating systems appropriate for wet, humid, and intermittently submerged service environments, coordinated with owner expectations for inspection intervals and long service life.
Can Colony work alongside major civil contractors on hydro sites?
Absolutely. Our erection planning and site management are built around integrating with civil, mechanical, and electrical contractors on multi-disciplinary hydro sites, respecting the civil schedule while delivering our steel on time.
What about environmental permit constraints?
We plan site operations around permit conditions including fish windows, sediment and erosion control, and riparian setbacks. Our field leadership coordinates with owner environmental monitors and adjusts operations to stay within permit limits.
Does Colony work on biomass and other renewable energy projects?
Yes. Our work on the Dockside Green biomass energy facility and related projects demonstrates our ability to support biomass, waste-to-energy, and other renewable generation programs with structural steel, envelope systems, and full design-build delivery.
Can Colony support powerhouse crane runway design?
Yes. Powerhouse bridge cranes – used for unit assembly, runner replacements, and major equipment maintenance – demand crane runways designed to the governing CMAA class with fatigue-appropriate detailing. Our engineering and detailing team delivers those runways as an integrated part of the superstructure.
Start Your Hydroelectric Construction Project
Send us your scope, schedule, and site details. A Colony estimator will review your project and reply within one business day.