Overview
- Massachusetts State Police say a wrong-way driver struck a southbound car at the Hunt Road overpass in Chelmsford.
- Investigators report the wrong-way driver has life-threatening injuries.
- One victim was flown by medical helicopter to a hospital.
- MassDOT closed I-495 south at exit 88 to allow the investigation and cleanup.
- Officials expect the closure to last several hours and urge drivers to avoid the area and use other routes.