A National Grid worker replacing gas pipes close to the railway level crossing at Tallington was injured during work today (Friday).
The man was taken to Peterborough City Hospital by ambulance with a minor cut to his leg. The air ambulance was reportedly called to the scene but not used.
A spokesman for National Grid said the injured worker was back to work later in the day.
The roadworks in Tallington will be completed by tomorrow (Saturday) - a week ahead of schedule.
The 200-metre stretch of Main Road had been closed to traffic since Monday last week to allow National Grid contractors to replace old gas pipes.
Traffic was diverted through outlying villages for the duration.