I remember something know as an “attractive nuisance” from some legal class long ago. This looks like that. I can see drunks and dare devil kids running up and down these with lawsuits to follow. Why are there no barriers? I think the “owner” of the bridge has left themselves wide open for million dollar lawsuits.
They hadn’t yet erected the barriers on the north arches. The south are already done.
Also, the stunt crew did some of their own bridge modification by filling in the gaps between arches.