A driver fled after a car hit Horbury Bridge in the early hours of this morning (Saturday 30).
The incident took place at around 4.40am when a blue BMW crashed into the stone bridge.
The driver had left the vehicle when police arrived at the scene. Officers seized the vehicle.
Bricks fell onto the railway line below, causing some disruption to train services.
A Northern Rail spokeswoman confirmed that trains were now back to normal.