Most Dangerous Intersections in Massachusetts: What the Crash Data Shows
Massachusetts roads see hundreds of thousands of motor vehicle collisions every year, and intersections are where the most dangerous conflicts occur. MassDOT crash data identifies the most dangerous intersections in Massachusetts: locations that consistently produce high numbers of crashes, serious injuries, and fatalities year after year.
Knowing where these intersections are can help you drive more cautiously, but if you are injured at one of them, understanding the legal options is equally important. In some cases, the design of the intersection itself contributes to the crashes, which can create liability for the municipality or MassDOT.
The Most Dangerous Intersections in Massachusetts
Based on MassDOT crash cluster data and analysis from recent years, these intersections rank among the most dangerous in the state:
| Intersection | City/Town | Crashes (Reported Period) |
|---|---|---|
| Columbia Road & Southeast Expressway | Dorchester (Boston) | 296 crashes (78 with injuries) |
| Route 128 & Middlesex Turnpike | Burlington | 295 crashes |
| Granite Avenue & Southeast Expressway | Milton | Top 3 statewide |
| North Washington Street & Central Artery | Boston | 232 crashes |
| Route 128 & Interstate 93 | Woburn | 225 crashes |
| Mass. Ave. & Melnea Cass Boulevard | Boston (South End) | 124 crashes (49 pedestrian) |
| Mass. Ave. & Albany Street | Boston | 220 crashes (86 pedestrian, 27 cyclist) |
| Revere Beach Parkway & Fellsway | Medford | 123 incidents (15 with injuries) |
| Morton Street & Harvard Street | Boston | High injury crash rate |
| East Columbus Ave. & Route 91 Ramp | Springfield | 600+ crashes |
Sources: MassDOT top crash location data (multi-year statewide analyses) and a 2024 Boston Globe analysis of Boston crash data. Reporting periods vary by location, so counts are not directly comparable.
Boston Metro Area
Boston’s dense traffic, narrow streets, and heavy pedestrian activity make it the most collision-prone city in Massachusetts. The city averages approximately 1,900 serious or fatal crashes per year.
Massachusetts Avenue corridor: The stretch of Mass. Ave. between the South End and Cambridge contains some of the most dangerous intersections in the state. The intersection with Melnea Cass Boulevard alone saw 124 crashes over a recent study period, with 49 involving pedestrians. The Mass. Ave. and Albany Street intersection recorded 220 crashes, including 86 pedestrian collisions and 27 cyclist collisions.
Columbia Road at the Southeast Expressway: This intersection in Dorchester ranks as the single most dangerous intersection in Massachusetts by crash volume. The combination of highway on/off ramp traffic merging with local street traffic creates constant conflict points.
Highway interchanges: Several of the most dangerous intersections are at highway interchanges where high-speed traffic merges with local roads. The speed differential between highway traffic and local traffic is a primary factor in crash severity. Massachusetts highways with the most fatalities consistently include I-93, I-95, and Route 128.
Worcester
Kelley Square (Route 9 & Route 12): For years, Kelley Square was regarded as one of the most dangerous intersections in Massachusetts, with 148 crashes recorded from 2014 through 2016 and a MassDOT ranking among the state’s most crash-prone locations. The intersection had no clear traffic signals and multiple roads converging at odd angles.
In 2021, Worcester completed a $14.7 million roundabout redesign that dramatically improved safety. Crashes dropped 61% in the first six months after the redesign, from 18 crashes to 7 in a comparable period. Kelley Square is a model for how intersection design changes can save lives.
Springfield
The East Columbus Avenue and Route 91 northbound ramp area in Springfield recorded over 600 crashes over a recent three-year period, ranking it among the most dangerous in the state. The complex interchange geometry, combined with heavy traffic volume and highway-speed merging, creates a hazardous environment.
What Makes an Intersection Dangerous?
Federal Highway Administration (FHWA) and MassDOT research identifies several common factors:
- High traffic volume: More vehicles mean more conflict points, and crash risk climbs sharply as volume increases.
- Complex design: Three or more roads converging, confusing lane assignments, and multiple simultaneous turning movements (like the old Kelley Square) create confusion.
- Speed differentials: Intersections near highway ramps where vehicles are transitioning between highway speed and local speed are particularly dangerous.
- Wide crossing distances: Major arterial streets wider than 70 feet force pedestrians to spend more time in traffic, increasing exposure.
- Inadequate signal timing: Traffic signals that do not provide enough time for pedestrians to cross or do not have protected left-turn phases.
- Poor visibility: Buildings, vegetation, parked vehicles, and road geometry that limit sight lines.
- Lack of pedestrian and cyclist infrastructure: Missing crosswalks, no pedestrian signals, no bike lanes, and no physical separation between vehicle traffic and vulnerable road users.
When the Intersection Design Is at Fault
In some cases, the intersection itself is the problem. If a municipality or MassDOT knows an intersection is dangerous and fails to take reasonable steps to address it, the government entity may share liability for resulting crashes.
Evidence that supports a design liability claim includes:
- A history of similar crashes at the same intersection
- MassDOT crash data identifying the intersection as a “top crash cluster”
- Citizen complaints or safety studies recommending improvements that were not implemented
- Engineering standards that the intersection fails to meet
- Comparisons to similar intersections that have safety features this one lacks
Claims against government entities are demanding, and the rules depend on the theory of the claim. A road defect claim against a municipality (a pothole, broken pavement, or similar defect in the way) is governed by M.G.L. c. 84, Sections 15 and 18: you must provide written notice within 30 days of the injury, and damages are capped at $5,000. Other negligence claims against public entities fall under the Massachusetts Tort Claims Act (M.G.L. c. 258), which requires a presentment letter within 2 years and caps damages at $100,000; discretionary decisions about road design may also be immune from suit. Claims against private parties (construction companies, engineers, contractors) are not capped, which is one more reason a thorough investigation matters.
Safety Improvement Initiatives
Massachusetts has invested significantly in intersection safety:
Boston Vision Zero: The City of Boston’s program aims to eliminate fatal and serious traffic crashes. Boston secured roughly $9 million in federal grant funding to redesign high-injury intersections, implementing protected left turns, speed humps, narrowed lanes, and improved signal timing.
Safe Streets and Roads for All (SS4A): Massachusetts municipalities have won more than a dozen SS4A grants worth millions of dollars for road safety improvements.
Complete Streets Funding Program: MassDOT’s Complete Streets program funds pedestrian and cyclist safety improvements at intersections across the state.
These initiatives demonstrate that the government recognizes the problem, which can support liability arguments when known dangerous intersections are left unimproved.
What to Do If You Are Injured at a Dangerous Intersection
- Call 911 and get a police report. Document the intersection where the collision occurred.
- Photograph the intersection. Capture the traffic signals, lane markings, sight lines, and any conditions that contributed to the collision (obscured signs, missing signals, confusing lanes).
- Note the date and time. Traffic patterns change throughout the day, and the timing may be relevant to signal timing and traffic volume.
- Get witness information.
- Seek medical attention. Prompt medical treatment protects your health and your claim.
- Contact an attorney promptly. If a government entity may be liable, the 30-day notice requirement for road defect claims makes timing critical. An attorney can determine whether the intersection design contributed to the collision and identify all liable parties.
Frequently Asked Questions
What is the most dangerous intersection in Massachusetts?
According to MassDOT crash cluster data, Columbia Road at the Southeast Expressway in Dorchester is among the most dangerous intersections in Massachusetts, with 296 crashes over a 10-year period including 78 injury crashes. Other high-crash locations include the Route 128/Middlesex Turnpike interchange in Burlington and several intersections along Massachusetts Avenue in Boston and Cambridge.
What makes an intersection dangerous?
Dangerous intersections typically share common factors: high traffic volume, complex road design with multiple merging or turning movements, wide crossing distances for pedestrians, inadequate signal timing, poor visibility, high speeds, and heavy pedestrian or cyclist activity. Intersections near highway on/off ramps are particularly dangerous due to speed differentials.
What should I do if I am in a crash at a dangerous intersection?
Call 911, get a police report, photograph the intersection including traffic signals and road conditions, get witness information, seek medical attention, and contact a personal injury attorney. If the intersection design contributed to the crash, the municipality or MassDOT may share liability for failing to address a known hazard.
Can I sue a city or MassDOT for a dangerous intersection?
Sometimes, but these claims are difficult. Road defect claims against a municipality are governed by M.G.L. c. 84, require written notice within 30 days, and are capped at $5,000. Other negligence claims against public entities fall under the Massachusetts Tort Claims Act (M.G.L. c. 258), which requires a presentment letter within 2 years and caps damages at $100,000, and discretionary design decisions may be immune. Claims against private parties such as contractors are not capped. An attorney can sort out which framework applies.
About the Author
Christopher Murphy, Esq. is the Managing Partner of Scalli Murphy Law with offices in Everett and Danvers, Massachusetts. Attorney Murphy has represented personal injury victims across Massachusetts since 1999 and has been recognized as a Massachusetts Super Lawyer in Personal Injury. He has helped thousands of clients and families recover compensation after car accidents, premises liability incidents, wrongful death cases, and other personal injury claims.
Contact Scalli Murphy Law
If you have been injured in a collision at a dangerous intersection, Scalli Murphy Law can investigate whether the intersection design, traffic signals, or road conditions contributed to the crash. We identify all liable parties, including government entities, and pursue the maximum recovery available.
Call 617-387-7000 or 1-833-933-HURT for a free consultation. There is no fee unless we recover for you.
Everett Office: 537 Broadway, Everett, MA 02149
Danvers Office: 1 Webb Street, Danvers, MA 01923
Related Resources:
- Highways in Massachusetts with the Most Fatalities
- Average Car Accident Settlement in Massachusetts (2026)
- What to Do After a Car Accident in Massachusetts
- Car Accident Practice Area
This article provides general information about Massachusetts law and is not legal advice. Every case is different. For advice about your specific situation, contact Scalli Murphy Law, P.C. at 617-387-7000 for a free consultation.