1/4 Severn Bridge Junction signal box from the front
2/4 Severn Bridge Junction signal box from the back
3/4 Scaffolding on the signal box
4/4 Shrewsbury sign at the junction
Work on the 117-year-old Grade II-listed Severn Bridge Junction signal box in Shrewsbury is now complete.
It is the largest operational mechanical signal box in the world, with the refurbishment its biggest in more than a decade.
The £250,000 project - carried out by Network Rail and MPH Construction and part funded by the Railway Heritage Trust - has allowed the entire three-storey building to be weather-proofed.
As part of the refurbishment the original single-glazed windows, installed when the building first opened in 1903, have also been replaced with new double-glazed units.