Dangerous Highways

Interstate 10 crosses the entire state of Texas from the Louisiana border at Orange to the New Mexico border west of El Paso — a distance of approximately 880 miles, making it the longest single-state interstate segment in the United States. For commercial truck drivers, this corridor is less about a single dramatic hazard and more about the cumulative toll of distance, heat, wind, isolation, and the fatigue that comes from driving through hundreds of miles of visually monotonous terrain.

Interstate 75 is one of the longest north-south interstates in the United States, running approximately 1,786 miles from Sault Ste. Marie, Michigan, at the Canadian border to Hialeah, Florida, near Miami. For commercial drivers, I-75 is a primary artery connecting the Midwest manufacturing belt and Great Lakes region to Florida’s population centers and Gulf ports. The full length of the route is demanding, but two sections in particular — Florida and Georgia — concentrate the corridor’s most acute dangers.

The Queen Elizabeth Way — the QEW — is the primary expressway connecting Toronto, the western Greater Toronto Area, Hamilton, and the Niagara region. It is one of the busiest commercial vehicle corridors in Ontario, carrying massive freight volumes between Toronto’s distribution infrastructure and the US border at Niagara Falls and Fort Erie. Somewhere near the middle of this corridor, between the cities of Burlington and Hamilton, sits a structure that concentrates the QEW’s inherent dangers into their most intense form: the Burlington Skyway.

US Highway 17 is not a highway that appears on most national dangerous-road lists. It lacks the dramatic mountain passes of I-70 or the oilfield chaos of US-285. It is, in most sections, a moderately traveled two-lane or four-lane road through the coastal South — passing through resort towns, fishing villages, agricultural land, and coastal wetlands from Virginia to Florida. That ordinariness is part of what makes it dangerous.

The highway’s accident rate reflects a confluence of hazards that individually seem manageable but in combination produce consistent, serious crashes: poor infrastructure, varied and unpredictable traffic, inadequate lighting, and terrain that limits sight distances in ways that drivers unfamiliar with the route don’t anticipate.

Interstate 15 between the Inland Empire and Las Vegas is one of the highest-volume freight and passenger corridors in the American West, and one of its most deadly. The 150-mile stretch through the Mojave Desert from the Cajon Pass summit to the Nevada state line combines extreme summer heat, monotonous open-road conditions that encourage speeding and drowsy driving, and one of the most notorious truck grades in California — all on a corridor that sees over 50,000 vehicles per day.

Montana Highway 2 runs approximately 650 miles across the northern tier of Montana from the Idaho border near Glacier National Park east to the North Dakota state line at Williston — a route known as the “Hi-Line” that follows the path of the old Great Northern Railway through some of the most sparsely populated terrain in the continental United States.

It does not look dangerous. That is part of what makes it deadly.

At 3,020 miles, Interstate 90 is the longest US interstate highway — running from the waterfront of Seattle to the streets of Boston. Most of its length is manageable freight territory. But three segments make I-90 a serious winter corridor for commercial drivers: the Cascade passes of Washington State, the open range of Montana, and the Buffalo–Albany snow belt of upstate New York.

Understanding these segments, and knowing how to navigate them, is essential for any driver or dispatcher running the northern transcontinental freight lane.

Interstate 84 is the primary east-west freight corridor through Oregon and Idaho, following the Columbia River gorge before turning south through the high desert toward Boise and Salt Lake City. Most of this route is straightforward for experienced commercial drivers — until the highway climbs into the Blue Mountains east of Pendleton.

At the summit of what truckers call Cabbage Hill (the locals’ name for the Emigrant Hill section of I-84), the road crests above 4,000 feet before dropping dramatically toward the Umatilla River valley and Pendleton below. What follows is one of the most consequential descents on any US interstate.

Colorado sits at the intersection of two of the highest transcontinental freight routes in North America: I-70 crossing the Continental Divide at the Eisenhower Tunnel, and US-160 serving the southwestern corner of the state. Both routes have sections that force trucks onto some of the most demanding roads in commercial driving — roads that make the already-challenging main corridors look mild by comparison.

This article covers two of those routes: Loveland Pass (US-6) and Wolf Creek Pass (US-160).

Michigan’s roads have a national reputation that has transcended trucking circles into popular culture. The state’s infrastructure funding shortfall, combined with one of the most punishing freeze-thaw climates in the contiguous United States, has produced a highway network that truckers and civilians alike recognize immediately. “Michigan, Michigan, and Michigan is pretty bad too.” “I75 in Michigan heading towards Detroit is an abomination.” One trucker reported getting motion sickness from the sustained bouncing on a Michigan interstate. This is the road.