Chelmsford, MA Crash Report: Route 3 Wrong-Way Head-On Collision

May 21, 2026 | Chelmsford

Report ID: May 21, 2026

NCIC#: Unknown

Officer ID#: Unknown

Traffic Unit 1: Acura (passenger vehicle)

Traffic Unit 2: Unknown vehicle (wrong-way driver); additional second vehicle involved

Occupants: Isaiah Portocarrero, 20 years old (Unit 1); occupants of other vehicles unknown

Injuries/Fatalities: Isaiah Portocarrero sustained minor injuries including swelling and abrasions to his right hand, a swollen right pinky, and abdominal pain consistent with seatbelt use. One other person was transported to the hospital with non-life-threatening injuries. No fatalities reported.

Vehicle Damage: Significant damage to Unit 1 — hood split open, engine pushed inward; all airbags deployed

Property Damage: Unknown

Road Surface: Unknown

Manner of Impact: Head-on collision; a vehicle crossed the median and struck Unit 1 head-on; a second vehicle subsequently struck Unit 1

Pedestrian/Cyclist Location: N/A

Narrative

On Wednesday, May 21, 2026, at approximately 4:30 p.m., a wrong-way driver crossed the median on Route 3 in Chelmsford, Massachusetts, and struck a vehicle head-on driven by 20-year-old Isaiah Portocarrero. A second vehicle then struck Portocarrero’s Acura, causing additional damage. Dashcam footage captured the moment of impact.

Portocarrero sustained minor injuries including swelling and abrasions to his right hand and abdominal discomfort attributed to his seatbelt. One other person involved in the crash was transported to a local hospital with injuries described as non-life-threatening. No fatalities were reported.

Investigators are still working to determine the cause of the crash, and it remains unclear whether any charges will be filed. Full details are developing.

When a wrong-way driver crosses the median and causes a violent head-on collision, the consequences can be life-altering — even when victims walk away with minor injuries. If you or someone you love was involved in a serious highway crash like this one, understanding your rights starts with having the official documentation. You can get your free crash report here to help protect your legal interests and support any potential claims.

This report contains details provided by WCVB and is NOT an official crash report.

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