Overview
- MassDOT said Monday evening a tractor-trailer flipped in Westborough, reducing both directions to a single open lane.
- Two left lanes in each direction were closed for hours as crews cleared spilled cargo and secured the scene.
- The Westborough Fire Department urged drivers to take detours and warned of significant delays during the cleanup.
- Officials reported no injuries and said other vehicles were involved, though the number was not yet clear.
- The crash occurred in a construction zone near the I-495 interchange in the Westborough–Hopkinton area, a busy stretch where disruptions can trigger broad spillover congestion.