I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Can park directly underneath the bridge, not many spaces but doesn’t get too busy. There are steps to the right hand side of the road which take you up on top of the viaduct - The bridge is fenced off at one side, but accessible via the steps. occassional dog walkers / ramblers.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 15/02/2023. It remains the responsibility of any pilot to check for any changes before flying at the same location.