The Belgian Deceuninck-Quick Step rider was descending from a high climb in the leading pack when he hit the bridge wall and was thrown over the edge.
Paramedics attended the 20-year-old before carrying him to an ambulance.
“Remco Evenepoel has been tended to by the doctors and is now taken to the hospital with the ambulance,” said a team statement.
The Independent understands Evenepoel was conscious and talking in hospital, with pain in one of his legs. Medical examinations are ongoing.
More to follow...