Why are Massachusetts’ deadliest roads so dangerous? 

A motor vehicle accident can be traumatic for individuals and families. Victims can suffer traumatic, life-long injuries and property damage as a result of reckless or negligent drivers.

Whether you live in Massachusetts, are driving through on a vacation or spending time with family, it is important to know what roads are the most dangerous in Massachusetts. If you are involved in an auto accident, it can also help to understand how your accident could have happened and what you can do to protect your rights. Here is what you should know:

Massachusetts’ deadliest highways

It may be important to read motor vehicle accident statistics to learn what roads and intersections are the deadliest in Massachusetts. From a 2025 analysis of Massachusetts highways, I-495 is one of the deadliest roads, claiming nearly 10 lives a year. 

In addition to I-495, the following are the 10 deadliest roads in Massachusetts:

1. I-95 N from S. Main St. to Exit 21
2. Main St. From Perkins Ave. to Stonehouse Hill Rd.
3. I-93 N From Exit 39 to Exit 42
4. I-495 N from Exit 14 to Exit 15
5. I-93 N from Exit 11B to Exit 13B
6. I-93 N from Exit 28A to Exit 31
7. I-195 E from Exit 1 to Exit 5
8. I-495 S from Stow Rd. to Exit 70
9. I-95 N from Exit 7 to 12A
10. I-95 S from Exit 1 from Exit 2B

Drivers may be able to reduce auto accidents by avoiding these roads. If these roads are unavoidable, it is important to stay cautious and watch for signs of negligent or reckless driving.

What causes traumatic motor vehicle accidents?

There are many reasons why these roads are so dangerous. For example, because these roads are so heavily used, they must also be constantly maintained. The addition of construction, signs and outdated infrastructure can confuse drivers and lead to congested traffic. Confusion and heavy traffic can increase auto accidents. However, construction is not the only cause of auto accidents.

In the U.S., nearly 30% of fatal accidents are caused by drunk driving. Speeding contributes to 26% of fatal accidents. And, another 9% of auto accidents with fatal injuries are caused by distracted driving.

What can victims do?

Drivers who are involved in deadly auto accidents should be aware of their legal rights. Many victims have the right to seek compensation for their injuries and losses. Legal guidance can help.