Winter Does Not Wait for December

Today is October 1, which means BC's commercial chain-up season is now in effect. From this morning until spring, commercial vehicles over 11,794 kg must carry chains on most designated BC highways, and on the mountain passes that carry nearly all of Western Canada's east-west freight, the requirement runs to April 30.

Most shippers start thinking about winter the week of the first storm. By then the heated trailer capacity is booked, the transit schedules are already slipping, and the freight that needed protection is sitting in a cold trailer somewhere east of Hope. This post is the version of the conversation we would rather have with you in October: what winter actually changes on a freight lane, which products are at risk, and what to build into your planning before the first closure of the season, not after it.

The Season Started This Morning

The chain-up rule is the official start line, but it is really a signal about everything else. The same date marks the return of avalanche control schedules, winter maintenance classes on the highways, and the months where DriveBC becomes the first tab dispatch opens every morning.

The geography has not changed since we wrote about it during fire season: nearly everything moving between the Lower Mainland and the rest of Canada crosses one of three corridors, Highway 1, Highway 3, or Highway 5. In summer the threat to those corridors was fire. In winter it is snowfall, avalanche control, and the multi-vehicle incidents that close a pass for hours at a time. Different season, same bottleneck.

What Winter Does to a Freight Lane

A winter lane is the same distance and a different job. Four things change at once, and they compound.

Protect From Freeze Is a Service, Not a Hope

Every November somebody learns this the expensive way. A pallet of liquid product ships in a standard dry van because it always has, the lane crosses two nights of minus twenty, and the receiver opens the doors to a write-off. The claim conversation that follows is painful, because the answer to "why did it freeze" is "because nobody asked for heat."

The freeze list is longer than most people expect: beverages, paints, adhesives, sealants, cleaning chemicals, some pharmaceuticals, certain electronics, and fresh produce. If your product label says "protect from freezing," your freight documents need to say it too. The service that protects it is a heated trailer or a reefer running in heat mode, holding the box above freezing regardless of what the pass is doing outside.

Two practical rules. First, flag freeze-sensitive product on every quote request between November and March, even for lanes you think of as mild, because the cold snap does not check your assumptions. Second, confirm the protection in writing on the booking confirmation. A verbal "it should be fine" is not a service level.

Build the Buffer Now

The cheapest winter insurance is time. A 24 to 48 hour buffer on mountain and prairie lanes between November and March absorbs most chain-up events, most short closures, and most storm slowdowns without turning into a missed delivery appointment and a detention conversation at the other end.

Build it into the commitment, not the hope. If the customer-facing promise is Friday, plan the freight to arrive Wednesday. Book delivery appointments with flexibility where the receiver allows it. And front-load the week: freight that leaves Monday has days of slack to absorb a storm, freight that leaves Thursday is betting the weekend on clear roads.

When the Highway Closes

At some point this winter, Highway 5 will close while your freight is on it or headed toward it. The question is not whether, it is what happens in the first thirty minutes after.

The reroute math is unforgiving. The alternatives to the Coquihalla are Highway 1 through the Fraser Canyon or Highway 3 through the Crowsnest, both slower, both mountain roads in the same weather system, and both absorbing everyone else's diverted trucks at the same time. Sometimes the right call is to reroute immediately. Sometimes it is to hold at a safe stop and let a two-hour avalanche control closure finish. Making that call well requires someone watching DriveBC, the weather along the lane, and the driver's remaining hours, all at once.

What a shipper should expect from a carrier in that moment is simple: a decision, a new ETA, and a notification you did not have to chase. That last part is why we put live tracking on every load. When the plan changes on a pass, the tracking link changes with it, and the receiver finds out from the system rather than from an empty dock.

What It Does to Rates This Year

Winter always costs more to operate: fewer kilometres per day, chain-up labour, idle time burning fuel, and equipment wear that summer never inflicts. In a normal year that pressure shows up quietly in winter pricing. This is not a normal year.

The season is landing on a market where diesel set an all-time record above six dollars a gallon in September, Canadian capacity is the tightest in a year at 2.71 trucks per load, and counter-tariffs are repricing equipment and parts. Every winter cost multiplies a fuel price that is already at a record. The practical takeaway for shippers is to lock in winter commitments early, because the carrier who quotes you in October is pricing from today's reality, and the spot market in a January storm will not be kinder.

How Keylink Runs Winter

We run the BC-Alberta and Canada-US lanes through these passes all winter, every winter, out of Abbotsford and Calgary. The playbook is not complicated, it is just actually followed.

Questions We Get Asked

Sources and Further Reading