Something tells me the Daily Hate would have been the first paper to start shrieking, foaming and frothing had a bit of stray masonry hit anyone...
I totally agree with your sentiments but there is little chance if this happening.This is one of a few bridges which go over a disused line which is in a cutting. This is the weird bit, the land, including the cutting, either side of the bridge was sold off to the local land owner(s) years ago and then the cuttings were filled in, but only upto the sides of the bridge, I believe because of maintainence requirements.
The bit directly under the bridge is left empty!! In effect you can go into the adjacent field and walk parallel to the bridge but on the wrong side of the parapet