FORT ST. JOHN, B.C. – The final four turbine runners for the Site C project have arrived in Prince Rupert.

BC Hydro says the runners will be transported to the site individually over the next couple of months.

The first two runners arrived in January and were transported on specific routes in the evening to avoid delays during busy traffic hours.

The runners are the project’s heaviest uninstalled component, coming in at approximately 170 tonnes and measuring around 26 feet (8 m) wide and 17 (5 m) feet tall.

According to BC Hydro spokesperson David Conway, the turbine acts as a fan or windmill in the dam.

“The runner is the rotating part of a turbine that converts the gravitational energy of falling water into mechanical energy, which then spins a generator to produce clean hydroelectric power. The runners are the heaviest unassembled single project components.”

There are six turbines in total needed on site. The turbines were manufactured in Sao Paulo, Brazil, by Voith Hydro after receiving a contract in 2016.