Far be it from me to say "were you wearing hi-viz", but wouldn't yellow fluorescent strips on the inside part slanting down that the drivers hit help?
#DublinBridges #DublinDrivers #HiViz
https://dublininquirer.com/2023/07/05/three-dublin-railway-bridges-are-among-those-most-often-hit-by-drivers-says-irish-rail/
Three Dublin railway bridges are among those most often hit by drivers, says Irish Rail

What more can be done to keep drivers from trying to squeeze their trucks and coaches under too-low railway bridges, causing safety risks, damage and delays?

Dublin Inquirer