South Carolina is a beautiful state — from the Blue Ridge foothills to the Atlantic coastline, there’s no shortage of scenic drives. But behind that beauty lies a troubling reality: South Carolina consistently ranks among the most dangerous states in the nation for drivers. According to data from the Insurance Institute for Highway Safety (IIHS), the state recorded 2.08 deaths per 100 million miles traveled — the second-worst rate in the entire country. In 2021 alone, 1,112 fatal collisions occurred on South Carolina roads, meaning someone was killed in a traffic accident roughly every 7.3 hours.
At Morris Law, we’ve seen firsthand how devastating road accidents can be for victims and their families. That’s why we’ve compiled this guide to the 10 most dangerous roads in South Carolina — so you know where to be extra cautious, and so you know your rights if the worst happens.
1. Interstate 26 (I-26)
The Most Deadly Interstate in the State
If there’s one road that consistently tops the danger list, it’s I-26. Running from Charleston all the way to Asheville, North Carolina, this highway passes through the heart of South Carolina — and through some of its most congested traffic. State data shows I-26 recorded 37 fatal collisions in a single recent year, the highest of any interstate in South Carolina, along with 62 serious injury collisions and over 900 other injury crashes. That same year, 46 people lost their lives on this highway.
The danger stems from a combination of heavy commuter and freight traffic, high speeds, and aggressive driving — particularly near Columbia and the I-26/Ashley Phosphate Road interchange in North Charleston, which is widely regarded as the most dangerous intersection in the entire state.
Watch out for: High-speed rear-end collisions, aggressive lane changes near urban interchanges, and heavy truck traffic.
2. Interstate 95 (I-95)
The “Main Street of the East Coast” — and One of Its Deadliest
I-95 cuts through South Carolina for nearly 200 miles, carrying millions of tourists, truckers, and commuters each year. It recorded 32 fatal collisions in a recent year and is the second-deadliest interstate in the state, with 36 people killed and 58 seriously injured. The sheer volume of tractor-trailers — over 200 large truck crashes were recorded in 2022 alone — makes this highway especially treacherous.
The long, often monotonous stretches of road also contribute to driver fatigue, while a lack of median barriers in some sections has led to deadly head-on collisions.
Watch out for: Driver fatigue, large truck blind spots, and high-speed collisions in rural stretches.
3. U.S. Highway 17 (US-17)
The Coastal Highway: Scenic, Crowded, and Deadly
Running along South Carolina’s coastline from Charleston to Myrtle Beach, US-17 is one of the most heavily traveled routes in the state. Heavy tourist traffic, frequent lane changes, winding paths, and blind curves make this road particularly hazardous. In Horry County alone — home to Myrtle Beach — US-17 is consistently ranked among the top roads for total collisions. Wildlife crossings add yet another unpredictable hazard, with over 100 animal-related crashes reported on the coastal highway annually.
Visitors unfamiliar with the road’s layout often make sudden stops, miss turns, or slow unexpectedly, creating dangerous conditions for local drivers.
Watch out for: Distracted tourist drivers, wildlife crossings, and heavy seasonal congestion.
4. SC Highway 9
The Longest — and One of the Most Lethal — Highways in the State
SC Highway 9 stretches across the northern part of the state, making it South Carolina’s longest highway. That length comes with a cost: a high average number of fatalities that has earned it a notorious reputation among safety researchers and law enforcement. Rural stretches with limited lighting, high speeds, and intersections with poor visibility all contribute to its danger.
Watch out for: High-speed rural driving, limited road lighting, and dangerous crossroads.
5. U.S. Highway 501 (US-501)
The Gateway to Myrtle Beach — and a Collision Hotspot
US-501 serves as the primary corridor leading into Myrtle Beach, making it an intensely busy route — especially in summer. The combination of local and tourist traffic, numerous commercial driveways, and high-volume intersections creates a recipe for accidents. One particularly dangerous stretch runs through North Myrtle Beach, where nine fatal crashes resulted in ten deaths over a three-year study period. SC-544, which connects to US-501 in Horry County, has recorded five fatal accidents in a single year along with hundreds of other injury-causing crashes.
Watch out for: Congested tourist traffic, commercial driveway hazards, and distracted driving near shopping areas.
6. U.S. Highway 25 (US-25)
Greenville County’s Deadliest Road
Greenville County experiences more total traffic crashes than any other county in South Carolina, and US-25 sits at the center of that danger. State data shows that the majority of fatal crashes in Greenville County occur along this corridor. The White Horse Road (US-25) and Farrs Bridge Road (SR-183) intersection has been identified as one of the three most dangerous intersections in the entire state.
Watch out for: High-traffic intersections, aggressive driving in commercial zones, and pedestrian activity near urban sections.
7. Interstate 85 (I-85)
The Upstate’s High-Speed Corridor
I-85 cuts through the Upstate, connecting Greenville and Spartanburg to the broader Southeast. Like I-26 and I-95, it carries heavy freight traffic and sees frequent high-speed collisions. Aggressive driving and lane-weaving are consistent problems on this corridor. Defensive driving is essential here, particularly around large trucks that have significant blind spots and need longer distances to stop.
Watch out for: High-speed merging, large truck traffic, and aggressive drivers in the Greenville-Spartanburg metro area.
8. U.S. Highway 521 (US-521)
A Rural Road with Deadly Consequences
US-521 stretches through rural South Carolina, connecting communities from Camden to Lancaster and beyond. Its long, open rural character encourages speeding, while blind spots and unmarked crossroads create deadly hazards. More than 75 fatalities have been recorded on US-521 in recent years, with the majority occurring during low-light conditions. In Lancaster County, US-521 recorded 567 total collisions including four fatal crashes in 2021.
Watch out for: Unmarked rural intersections, low-light conditions at dawn and dusk, and speeding on open stretches.
9. U.S. Highway 278 (US-278) / I-26 Near North Charleston
A Deadly Urban Intersection Zone
The stretch of I-26 near North Charleston — particularly around Ashley Phosphate Road — is one of the most collision-prone areas in the state. A 4.8-mile segment in this area recorded 11 fatal accidents that claimed 14 lives over a three-year study period. Heavy commercial traffic, complex interchanges, and high volumes of commuters converging near the Charleston metro make this area consistently dangerous.
Watch out for: Abrupt lane changes near interchange ramps, heavy commercial vehicle traffic, and congestion during peak hours.
10. U.S. Highway 378 / SC Rural Secondary Routes
Secondary Roads: Often Overlooked, Often Deadly
It might surprise you to learn that South Carolina’s most dangerous roads — by total collisions, injuries, and fatalities — are not always the interstates. Secondary routes, including rural highways like US-378 and various county roads, account for a significant share of fatal crashes. About 60% of all accidents in South Carolina occur on rural roads, and 66% of road fatalities happen in rural settings. Poor lighting, lack of guardrails, narrow lanes, and high speeds are common features of these roads.
Watch out for: Sharp curves without guardrails, reduced visibility, and limited emergency response times in rural areas.
What Makes South Carolina’s Roads So Dangerous?
South Carolina drivers face a perfect storm of risk factors:
- Driver behavior is the #1 cause — responsible for over 90% of traffic accidents. Speeding, distracted driving, and impaired driving are the leading culprits.
- Tourist traffic from visitors unfamiliar with local roads contributes to unpredictable driving patterns, especially on coastal routes.
- Heavy truck traffic on interstates like I-95 and I-26 adds significant risk.
- Rural road design — including poor lighting, blind curves, and lack of median barriers — amplifies the consequences of driver error.
- Weather plays a role in roughly 15% of crashes, with sudden rainstorms, fog, and occasional ice creating hazardous conditions.
Injured on a South Carolina Road? Morris Law Is Here to Help.
If you or a loved one has been injured in a crash on any of these dangerous roads, you may be entitled to compensation for medical bills, lost wages, pain and suffering, and more. The at-fault driver — or even a government entity responsible for unsafe road conditions — may be held liable.
Don’t navigate the legal process alone. The experienced personal injury attorneys at Morris Law are here to fight for the compensation you deserve.
📞 Call us today for a free consultation.
The road to recovery starts with one call.
Disclaimer: This blog post is intended for informational purposes only and does not constitute legal advice. Statistics are sourced from the South Carolina Department of Public Safety (SCDPS) Traffic Collision Fact Book and related state and national safety data. If you have been involved in an accident, please consult a licensed attorney.