It’s called a “Propylene-Propane Splitter” distillation column, and its job will be to help make plastic out of propane. It weighs nearly 900 tons, stands over 300 feet tall, and just began its journey from Edmonton, Alberta to a nearby suburb on the backs of specialized trailers towed by diesel commercial trucks. Behold the amazing sight of this enormous convoy.

There’s a big project underway in Canada called the Heartland Petrochemical Complex, and its purpose—according to , the company building it—will be to “convert locally sourced, low-cost propane into 525,000 tonnes per year of polypropylene” plastic.

Yes, “locally sourced” is a term now being used for plastic.

Part of the over $2.5 billion being spent on the project went to Dacro Industries in Edmonton, who spent basically all of 2018 building a huge “splitter” out of carbon steel. Now that it’s done, the distillation column is being transported from Dacro to the Heartland Petrochemical complex about 30 miles away. And that’s no easy task. Just watch these trucks tow the huge specialized equipment on heavy duty trailers:

Viralhog, who posted the video above to , writes in its description that the short journey began on Sunday night and will take four days. Canadian news site CBC’s the full route, and quotes the Alberta government as saying the splitter is the “heaviest load ever to travel on Alberta’s highway network,” and that—including all vehicles involved—the operation will span almost 590 feet in length, over 31 feet in width, and over 42 feet in height, taking up both lanes and the shoulder of a two-lane highway.

If you’re curious to know how such an object, which weighs about 882 tons and stands 318 feet tall, is being towed, check out the beginning of the video below by Inter Pipeline’s contractor, Mammoet, which specializes in moving huge loads:

The video describes a “conventional method” of towing enormous objects, and that appears to be what’s being used in Alberta. It involves pushing and pulling modular trailers using prime movers like diesel trucks. The trailers, which are possibly built by German company , appear to be able to steer, much like the one shown below:

It’s hard to tell exactly which trailers are being used, or if they’re self-propelled in any way, but the trucks appear to be , which Mammoet mentions on its website as among the prime movers it uses for such operations.

And what an impressive operation it is. Unless you’re stuck in traffic because of it, in which case, perhaps “impressive” isn’t the right term.