Route 3 Accidents: What to Do After a Crash Between Quincy, Plymouth, and the Sagamore Bridge

If you were hurt in a Route 3 accident on the South Shore, the next few days matter more than most people realize. Massachusetts has its own rules for crash reports, insurance, and injury claims, and some deadlines are as short as five days.

This guide covers Route 3 (the Pilgrims Highway) from the Braintree Split to the Sagamore Bridge. It explains why crashes happen here, who investigates, how to get your crash report, and how a Massachusetts injury claim works.

Jon Olsson has been licensed to practice law in Massachusetts since 2017 and represents people injured in car accidents across Massachusetts, including the South Shore and Cape Cod. If you were in a Route 3 crash, you can request a free case review.

Route 3 on the South Shore at a glance

The Pilgrims Highway runs about 43 miles from the Braintree Split, at the Braintree–Quincy line, south to the Sagamore Bridge in Bourne. North of the split, Route 3 runs together with I-93 on the Southeast Expressway into Boston.

Along the way it passes through Weymouth, Hingham, Rockland, Norwell, Hanover, Pembroke, Duxbury, Kingston, and Plymouth. In Plymouth it briefly shares the road with US 44, which is the stretch already widened to six lanes. Exits are numbered by mileage from the Sagamore Bridge, so a lower exit number means you were closer to the Cape.

Route 3 is a state highway maintained by MassDOT. That affects who responds to a crash and who is responsible if a road defect played a part, both covered below.

Massachusetts also has a separate northern Route 3 (US 3) running from Burlington to New Hampshire. This guide is about the South Shore highway.

Why Route 3 crashes happen

Most Route 3 crashes come from the same few patterns: stop-and-go commuter traffic, short merges, and seasonal Cape traffic.

• Commuter traffic near the Braintree Split. Weekday traffic between the South Shore and Boston backs up around the split and the Weymouth and Braintree exits. Sudden slowdowns lead to rear-end crashes, often several cars at once.
• Short on-ramps and lane changes. Much of Route 3 is two lanes in each direction. Drivers merging from local roads, or cutting across to an exit, cause sideswipes and crashes that push cars into the median or guardrail.
• Summer Cape traffic and Sagamore Bridge backups. On summer weekends, traffic to Cape Cod can stop for miles north of the Sagamore Bridge. Drivers who come over a rise at highway speed into a stopped line cause some of the most serious rear-end crashes.
• Bridge construction. Site work for the new Sagamore Bridge began in 2026, and the state expects main construction to start in winter 2027. Traffic is expected to shift onto a new span around fall 2033, with completion in 2037. Work zones, lane shifts, and new traffic patterns raise the risk of crashes near the bridge for years.
• Winter weather and night driving. Snow, ice, and dark, lightly lit stretches between exits contribute to spinouts and single-car crashes, along with deer strikes.

When a crash happens in a work zone, more than one driver may be at fault. A contractor or the agency running the project may also share responsibility, and that can affect who pays.

Who responds to a Route 3 crash, and how to get the Massachusetts crash report

On the South Shore stretch of Route 3, crashes are usually handled by Massachusetts State Police (Troop D, often troopers from the Norwell barracks), not local police. That matters when you go looking for the report.

There are two different reports:

1. Your own crash operator report. You must file it within five days if anyone was hurt or killed, or if there was more than $1,000 in damage to any one vehicle or other property. Send copies to the RMV, the police department where the crash happened (on Route 3, usually State Police), and your insurer. Use the state’s Motor Vehicle Crash Operator Report.
2. The police crash report. This is the trooper’s report. If you have a Massachusetts license or ID, request it online through myRMV. Otherwise, use the RMV’s crash report request form. The RMV charges $20 and asks you to wait at least four weeks after the crash before requesting it.

The police report often records who was cited, witness names, and the trooper’s view of how the crash happened. Insurers rely on it heavily, so read it carefully and flag any errors early.

How a Route 3 accident claim works in Massachusetts

A Route 3 crash claim usually starts with your own insurance, then moves to the at-fault driver. The rules are the same as anywhere in Massachusetts.

• PIP pays first. Personal Injury Protection covers up to $8,000 in medical bills, up to 75% of lost wages, and replacement services, no matter who caused the crash.
• Pain and suffering has a threshold. You can recover it only if your reasonable medical expenses exceed $2,000, or you have a fracture or another serious injury listed in the statute.
• Then the at-fault driver’s insurance. Since July 1, 2025, Massachusetts drivers must carry at least $25,000 per person and $50,000 per accident in bodily injury coverage. Multi-car Route 3 crashes can involve several drivers and several policies.
• Partial fault reduces your recovery. Massachusetts uses a 51% rule: your damages drop by your share of fault, and you recover nothing if you were more at fault than the other drivers combined.
• The deadline to sue is generally three years from the date of the crash.

For more detail on each of these rules, see our Massachusetts car accident lawyer guide.

Potholes and road defects on Route 3

Because Route 3 is a state highway, a crash caused by a pothole or other road defect is a claim against the Commonwealth, not a city or town. These claims have strict limits.

• File within 30 days. MassDOT says claims for state highway defects should be made within 30 days of the incident (G.L. c. 81, § 18).
• Recovery is capped, and limited to injuries. Personal injury recovery against the Commonwealth for a road defect is limited to $4,000, and there is no recovery for property damage.
• Construction zones are different. If the defect was in an active construction zone, MassDOT forwards the claim to the contractor, whose liability isn’t subject to that cap.
• Photograph the defect right away, before it is repaired, and note the nearest exit or mile marker.

Because the cap is so low, it is worth finding every other responsible party, such as a driver who swerved into you or a contractor that left a hazard in a work zone. See the road defect table on our Massachusetts page for how state and local claims compare.

Out-of-state drivers and Cape Cod visitors

Route 3 is the main road to the Sagamore Bridge for summer visitors heading to the Cape, so many crashes involve a driver from another state. That can make the insurance picture more complicated, but it rarely stops a claim.

• If the other driver is from out of state, their insurer still handles the claim. Most auto policies extend coverage to the minimums required where the crash happened.
• If you are the visitor, which coverage pays your medical bills first depends on your own state’s rules and your policy. Massachusetts PIP generally applies to Massachusetts-insured vehicles and the people in or struck by them.
• Where the case is handled. A claim from a Massachusetts crash can generally be brought in Massachusetts, even if you have gone home. You don’t need to travel back for most of the process.

What to do after a Route 3 accident

1. Get to safety and call 911. If your car can move, pull into the breakdown lane or off at the next exit. Route 3 has fast traffic and narrow shoulders, and secondary crashes are common.
2. Get medical care, even if you feel fine. Keep every appointment. Your medical records are what show you’ve passed the $2,000 threshold.
3. Document the scene. Take photos of the vehicles, the road, any work zone, and the nearest exit number or mile marker. Get names and phone numbers of witnesses.
4. File your crash operator report within five days if anyone was hurt or damage exceeded $1,000.
5. Open a PIP claim with your own insurer, even if the other driver caused the crash.
6. Give written notice within 30 days if a pothole or road defect played a part.
7. Ask about video. Nearby businesses, dash cameras, and other drivers’ phones may have footage, and it is often recorded over within days.
8. Talk to a lawyer before giving a recorded statement to the other driver’s insurer or signing a release.

If your crash happened in or near Plymouth, our Plymouth car accident lawyer page covers local roads, courts, and claims in more detail.

Route 3 accident FAQs

Where can I find out about a Route 3 accident today?

For live closures and delays, check MassDOT’s Mass511 traffic service or local news. If you were in the crash, focus on getting medical care and filing your crash operator report within five days.

Who investigates a Route 3 crash?

Usually Massachusetts State Police, not local police. Your police crash report will come from State Police, and you request it through the RMV.

How do I get my Massachusetts crash report?

Request it online through myRMV if you have a Massachusetts license or ID, or with the RMV’s paper request form. Wait at least four weeks after the crash, and expect a $20 fee.

Can I sue if I was partly at fault for a Route 3 crash?

Yes, as long as your fault isn’t greater than the other drivers’ combined. Your recovery is reduced by your share of fault.

How long do I have to file a claim after a Route 3 accident?

Generally three years to file a lawsuit. Shorter deadlines come first: five days for the crash operator report and 30 days for notice of a road defect.

Do I need a lawyer for a Route 3 crash?

Not for every crash. It’s worth a free consultation if you were hurt, missed work, or the insurer is disputing fault or pushing for a quick recorded statement.

Talk to a Massachusetts car accident lawyer about your Route 3 crash

The sooner a lawyer sees your case, the more evidence there is to work with, and some Massachusetts deadlines are as short as five days. Jon Olsson represents people hurt in Route 3 crashes from Quincy and Weymouth through Plymouth to the Sagamore Bridge and across Cape Cod. He also handles crashes in Fall River and across Massachusetts, and his prior results include car accident settlements of up to $700,000.

Call (508) 659-5235 or contact us online for a free case review. There is no attorney’s fee unless you recover. Learn more about Jon.

This article is provided for general informational purposes only and does not constitute legal advice. Reading this article or contacting Olsson Law does not, by itself, create an attorney-client relationship. Every case depends on its particular facts and applicable law.

Prior results include matters personally handled by Jon Olsson at prior law firms and matters in which he participated as part of a legal team. Past results do not guarantee a similar outcome.

By Jon Olsson
Founder, Olsson Law, PC
Attorney admitted in California, Massachusetts, and Texas. Practicing law since 2017.
Before founding Olsson Law, he defended major corporations at a leading international law firm.