The incident happened at a site in Corporation Street in Stafford at about 3.30pm yesterday (Tuesday 3rd April).
A rapid response vehicle, an ambulance, a paramedic area support officer and the Midlands Air Ambulance were sent to the scene.
A West Midlands Ambulance Service spokesman said: “On arrival, the man was found to have significant injuries on his right side.
“He had his leg splinted and a pelvic binder put in place before he was airlifted to the major trauma centre at Royal Stoke University Hospital.”
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