Winter-Driving

British Columbia Highway 5 — the Coquihalla Highway — has a reputation among commercial drivers that is earned every winter. The 315-kilometre corridor from Hope to Kamloops climbs to 1,244 metres (4,081 feet) at the Coquihalla Summit, receives some of the heaviest snowfall of any highway in Canada, and closes multiple times each winter for avalanche control or storm-related hazards.

It is also the most important freight artery between the Port of Vancouver and the BC Interior. When the Coquihalla shuts down, the supply chain for much of western Canada feels it.

The Yellowhead Highway (Highway 16) stretches from Portage la Prairie, Manitoba to Prince Rupert, British Columbia — over 3,000 kilometres of Canada’s northern transcontinental corridor. For much of its length, the Yellowhead is a serviceable two-lane highway through boreal forest and prairie. But two sections in the mountain west require specific attention from commercial drivers: the Jasper–Hinton corridor in Alberta, and the McBride–Tête Jaune Cache section in British Columbia.

These stretches are dangerous for overlapping but distinct reasons: extreme wildlife density, remote location, severe winter weather, mountain terrain, and in the case of the BC section, a troubling history of violence against highway users that has given this road a dark nickname.

There are dangerous roads, and then there is Alberta Highway 63.

For decades, the 465-kilometre corridor between Edmonton and Fort McMurray carried a grim distinction: one of the highest per-kilometre fatality rates of any Canadian highway. The road became so notorious that provincial politicians, safety advocates, and the families of accident victims campaigned for years under the banner of “Twinning 63” — arguing that the single-lane highway was a preventable killer.

For commercial truck drivers, no single stretch of US interstate commands more respect — or fear — than the 150 miles of Interstate 70 between Denver and Grand Junction, Colorado. Combining extreme elevation, sustained steep grades, avalanche terrain, mandatory chain laws, and weather that can change from clear to whiteout in minutes, this corridor is responsible for a disproportionate share of serious commercial vehicle accidents in North America.

If you are dispatching or driving freight through Colorado, this guide is essential reading.

Interstate 80 is the northern transcontinental freight corridor — 2,899 miles of rolling plains, high desert, mountain passes, and urban sprawl from San Francisco to the New York metro. Most of it is manageable. Two segments are not.

Donner Pass in California’s Sierra Nevada and Sherman Hill near Laramie, Wyoming are separated by nearly 500 miles of Nevada and Utah desert, but they share a common identity: they are the most dangerous truck segments on I-80, and among the most dangerous on any US interstate.

The Trans-Canada Highway is the longest national highway in the world, stretching over 7,800 kilometres from Victoria, BC to St. John’s, NL. For most of its length it is a manageable, if sometimes remote, route. But two sections in the western mountains stand apart: Rogers Pass through Glacier National Park in British Columbia, and the Banff–Lake Louise corridor on the BC–Alberta border through Banff National Park. Together, these segments represent some of the most consequential driving in Canadian commercial trucking.

Interstate 81 is one of the most heavily used freight corridors in the United States, running 855 miles from Tennessee through Virginia and Pennsylvania before connecting to I-90 in New York. For commercial drivers, this route is deceptively challenging: it looks like a standard Appalachian interstate, but the concentration of trucks, the terrain, and the weather conditions make it one of the most statistically dangerous stretches of highway in the country.

Interstate 40 between Little Rock, Arkansas and Memphis, Tennessee is a roughly 135-mile corridor through the Arkansas River Valley and the Mississippi Delta that most commercial drivers approach with zero concern. The terrain is flat. The alignment is straight. There are no mountain passes, no steep grades, no dramatic features.

It’s that complacency that makes this section so dangerous.

The Southern Ice Problem

Ice storms behave differently in southern states than in northern ones, and the difference matters enormously for commercial drivers.

The James W. Dalton Highway is in a category by itself. At 414 miles from the Elliott Highway junction north of Fairbanks to Deadhorse at Prudhoe Bay on the Arctic Ocean, it is the northernmost road in Alaska’s highway system, one of the most remote freight corridors on the continent, and the only surface route supplying the Trans-Alaska Pipeline infrastructure and the oil fields of the North Slope.

For commercial drivers, the Dalton is not a highway in the conventional sense. It is an industrial supply road built to serve the pipeline, and it operates under conditions that have no parallel anywhere else in the lower 48 states.

US Highway 550 between Ouray and Silverton, Colorado has a name that sounds glamorous — the Million Dollar Highway — and a reputation that is anything but. The 25-mile stretch of two-lane mountain road climbs to over 11,000 feet, carves across sheer cliff faces with no guardrails and no shoulder, and in winter becomes one of the most unforgiving stretches of pavement open to commercial vehicles in North America.

For truck drivers, this road demands a level of preparation and respect normally reserved for major alpine passes. It is not a shortcut. It is not a route to run casually.