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30 Most Dangerous Roads in America

From dangerous drivers to treacherous terrain, these roads are not for the faint-hearted.

America is a country built for driving. All told, there are 2.7 million miles of road in the United States—enough to go around the entire world almost 110 times. And with that many routes to ride on, you can be sure that some roads are going to be less safe than others.

In fact every year, more than 30,000 people are killed in car accidents. And while no one road is to blame, there are certainly some that host more than their fair share of fatal accidents. Here we've rounded up the most dangerous roads in America, helping you make that next road trip—or just your morning commute—a whole lot safer. And if these driving dangers have you thinking flying is more appealing, you should know The 10 Worst U.S. Airports for Summer Travel.

Highway 99, California

California 99 dangerous highways

Highway 99 runs through California's Central Valley, spanning 424 miles from Wheeler Ridge north to Red Bluff. The highway averages 0.62 fatal crashes per mile. From Wheeler Ridge to Sacramento, the highway is at least four lanes wide, but north of Sacramento, it dwindles down to a dark, rural two-lane highway in places.

U.S. Route 1

Route 1 dangerous highways

U.S. Route 1 is the longest north-south highway in America, running 2,369 miles from Fort Kent, Maine, down to Key West in Florida. It's the most dangerous highway in Maryland and Maine, and the Florida section of Route 1 had more than 1,000 fatal crashes over the course of a decade, making it one of the deadliest roads in the country. And if driving the country from top to bottom sounds enticing to you, check out these 40 Roads Everyone Should Drive by Age 40.

U.S. Route 550

Million Dollar Highway dangerous highways

Also known as the Million Dollar Highway, U.S. Route 550 offers unparalleled views as it makes its way through the Red Mountain Pass in the San Juan Mountains of Colorado. However, the hairpin turns of this narrow, winding road don't have guardrails to keep you from plummeting over the edge, so the 25-mile drive can be a real white-knuckle ordeal.

Oregon Coast Highway

Oregon Coast Highway dangerous highways

Though it travels from Los Angeles all the way to Tumwater, Washington, the portion of U.S. Route 101 that runs through Oregon, known as the Oregon Coast Highway, is especially dangerous. It averages 34 fatal crashes a year over the course of the 363 miles it runs parallel to the Pacific Ocean. And for some safe ways to have fun on the road, check out The 33 Best Roadside Attractions in America.

Interstate 285

Interstate 285 dangerous highways

If you've ever driven through, or rather around, Atlanta, you've probably experienced I-285, also known as The Perimeter. It circles the city in a 63-mile long loop that links all the interstates that cross the city. The high density of traffic, sharp turns, semis, and interchanges make for some seriously risky driving. It is frequently named one of America's most deadly freeways.

James Dalton Highway

James Dalton Highway dangerous highways

The James Dalton Highway in Alaska opened in 1974, and became open to tourists 20 years later. You might know it as the treacherous road that inspired Ice Road Truckers, and it's mostly used to transport oil and gas. The road is incredibly remote, with only three towns along its entire 414-mile path from Fairbanks to Deadhorse. Car rental companies don't generally allow their cars on this road, and helicopters make twice daily patrols to look for accidents or breakdowns, so if something happens out there, you're probably going to be on your own for a while.

Interstate 4

interstate 4 dangerous highways

Interstate 4 runs 132 miles from Tampa to Daytona Beach in Florida. It averages 1.4 fatalities per mile, and is frequently ranked among the most dangerous interstates in the country. Florida's lax laws regarding cell phone use while driving might have something to do with so many of the state's highways being so dangerous. And if you're having a hard time putting down your phone, check out these 11 Easy Ways to Conquer Your Smartphone Addiction.

Interstate 17

Interstate 17 dangerous highways

Interstate 17 is contained entirely within Arizona, running from Flagstaff to Phoenix, with amazing views along the way and several scenic view exits drivers can take advantage of. The road is just under 176 miles in length, but it averages 0.84 deaths per mile.


US 83 dangerous highways

US-83 runs from the Canadian border all the way down to Mexico, running through Texas, Oklahoma, Kansas, Nebraska, and the Dakotas. In Texas, it's particularly dangerous, averaging 26 fatal crashes each year for the past decade. That's one every other week.

U.S. Route 192

IS 192 dangerous highways

Running a brief 75 miles through Florida, U.S. Route 192 runs past Walt Disney World, Kissimmee, St. Cloud, and Melbourne. It's a short highway, but there's a lot going on in those few miles. The road averages 0.87 deaths per mile.

The Lake Pontchartrain Causeway

Lake Pontchartrain Causeway dangerous highways

The Lake Pontchartrain Causeway in Louisiana holds the Guinness World Record for longest continuous bridge over water, which makes for some very scenic driving. However, the driving can also be quite dangerous, with fog sometimes rolling in so thick that police convoys are needed to usher people across the bridge.

Interstate 95

Interstate 95 dangerous highways

I-95 runs from Maine to Florida, and goes through a lot of cities along its 1,915 mile path. The interstate is actually the most dangerous highway in Connecticut, Rhode Island, North Carolina, South Carolina, and I-495 is the most dangerous highway in Massachusetts.

Interstate 45

Interstate 45 dangerous highways

I-45 runs for 284.9 miles through Texas, from Galveston to Dallas. It's the shortest primary interstate in the country, and the only primary interstate that's only in one state. The highway averages 0.56 fatal crashes per mile. Unfortunately, drunk driving contributes to a large proportion of its crashes.

Interstate 37

Interstate 37 dangerous highways

In the short 143-mile span I-37 runs from San Antonio to Corpus Christi, it manages to average 0.65 deaths per miles each year, making it one of the most dangerous interstates in the country.

Interstate 80

Interstate 80

Interstate 80 is the second longest interstate in the country. It runs from Teaneck, New Jersey, all the way to San Francisco, traversing 11 states over the course of its 2,899 miles. It also the most dangerous road in 5 of those 11 states—Nebraska, Wyoming, Pennsylvania, Iowa, and Nevada. Each of those states has 16 fatal crashes each year on their section of the interstate.

U.S. Route 199

US 199 dangerous highways

Also known as Redwood Highway No. 25, U.S. Route 199 runs from Grants Pass, Oregon, to Crescent City, California. It averages about 0.58 deaths per mile of its 80-mile length, making it a beautiful, but dangerous, road to travel on.

U.S. Route 175

US 175 dangerous highways

U.S. Route 175 runs for 111 miles, from Jacksonville, Texas, to Dallas. The road averages 0.685 fatalities per mile, and nearly half of those happened in Dallas. So, in this case, it's not the road that's dangerous as much as it is the drivers.

Interstate 10

Interstate 10 dangerous highways

Interstate 10 spans the country, running 2,460 miles from Santa Monica, California, to Jacksonville, Florida. It averages 0.85 fatalities per mile, but the 150-mile stretch of the highway that runs through the desert from Phoenix to California is especially dangerous, with frequent fatal crashes. It probably doesn't help that it's dark and the speed limit is 75 miles per hour.

Interstate 65

Interstate 65 dangerous highways

Interstate 65 runs 887 miles from Gary, Indiana, to Mobile, Alabama. It averages 0.48 deaths per mile overall, but it is the most dangerous road in Alabama, where an average of 33 fatal accidents occur every year along its 367-mile path through the state.

U.S. Route 90

US 90 dangerous highways

U.S. Route 90 runs from Van Horn, Texas all the way to Jacksonville, Florida, but it's the 297.6-mile stretch of road that goes across Louisiana that's worth mentioning here. With an average of 27 fatal crashes every year, it's the most dangerous road in the state.

U.S. Route 17

US 17 dangerous highways

From Winchester, Virginia, to Punta Gorda, Florida, U.S. Route 17 averages 0.43 fatal crashes per mile of its 1,206-mile span. Of special note is the high concentration of fatal crashes involving drunk drivers, which made up for slightly less than a third of all fatal crashes on the road.

Interstate 40

Interstate 40 dangerous highways

Interstate 40 runs from Barstow, California, to Wilmington, North Carolina, covering a distance of 2,555 miles. Across the entire highway, it averages 0.43 fatal crashes per mile, but it is the most dangerous highway in California, Arizona, New Mexico, and Tennessee.

Interstate 75

Interstate 75 dangerous highways

I-75 spans from Michigan to Florida and cuts through Detroit, Cincinnati, Atlanta, Tampa, and Miami. It runs along the Great Lakes through Michigan and Ohio, and lake effect snow certainly doesn't make the road any safer. It's ranked third for the number of fatal accidents occurring in rainy or snowy weather.

U.S. Route 2

Route 2 dangerous highways

U.S. Route 2 runs from Washington to Michigan, and it's the country's northernmost east-west route. The stretch of highway that runs all the way across Montana is especially dangerous. It has more fatal crashes than any other road in Montana, and to make matters worse, the average arrival time for an ambulance to get to a crash is 80 minutes because the road goes through such a remote landscape.

Interstate 15

Interstate 15 dangerous highways

Interstate 15 runs from Sweet Grass, Montana, all the way to San Diego, California, but it's the 181-mile stretch of highway that goes from Los Angeles to Las Vegas that is exceptionally dangerous. That expanse of road has almost double the death rate of other highways in the country. Possibly to blame is that it's a long, dark, straight shot through the desert, which makes it easy for drivers to speed up and stop paying attention to what they're doing.

Interstate 35

Interstate 35 dangerous highways

Interstate 35 runs for 1,569 miles, from Duluth, Minnesota, to Laredo, Texas. The road averages 0.48 fatal crashes per mile, with an especially dangerous patch in Austin, Texas. Anyone who's ever driven in Kansas City can tell you it's no picnic there, either.

Interstate 44

Interstate 44 dangerous highways

Running from Wichita Falls, Texas, to Saint Louis, Missouri, Interstate 44 averages 0.41 fatal crashes per mile of its 633-mile length and hits an especially rough patch around Oklahoma City.

U.S. Route 24

US 24 dangerous highways

U.S. Route 24 runs for 1,540 miles from Clarkston, Michigan, to Minturn, Colorado, but it's the section of the highway around Toledo, Ohio, that earned a gnarly reputation. The road is known for head-on collisions and a dead man's curve, and is frequently referred to as "the killway."

Interstate 26

Interstate 26 dangerous highways

Interstate 26 runs from Kingsport, Tennessee, to Charleston, South Carolina, winding through the Appalachian mountains along the way. The road averages 0.8 fatalities per mile, but the most dangerous part of its 349-mile span is at the end of the road in Charleston, South Carolina, where a disproportionate number of those accidents occur.

Interstate 97

Interstate 97 dangerous highways

At just 17.62 miles in length, Interstate 97 is one of the shortest interstates in the country and runs from Annapolis to Baltimore. But what it lacks in miles it makes up for in danger. The road averages 0.79 fatalities per mile, making it one of the more dangerous roads to drive on in America. And for more ways to get safely to wherever it is you're going, discover these 15 Ways to Be a Safer Female Solo Traveler.

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