I dont think “a lot to be desired is fair” :) but you can see a lot of potential in that there bridge.
Is it in use anymore as the rails look rusty?
Might be some potential for large scale painting with light now this is just an idea but how about set you camera up on a tripod as per number 1 in the dark and with the shutter open on a long exposure and standing way off down the bridge with a big torch play it over the girder work in circles (we are talking waving your arms madly but dont move) pointing towards the camera you might get a hovering ball of light thing going.
It’s the main line between Waterford and Rosslare I think it’s still in use, not but it was hard to tell by thr rails they were very rusty, getting a train half way accross would be great