Northern Light
Superstar
It's just an overpass, I don't see any need for it to be more than simple concrete.
There is always a requirement for better design. Perhaps you don't mind plain concrete parapet walls on bridges, or generic stainless steel railings or chainlink fences. Which is fine, I suppose if function is all that matters to you.
That sounds terribly dull to me.
No one is suggesting everything need be 'iconic'; in fact I would argue the virtual impossibility of that.
But that doesn't mean we can't make things that add to public space rather than detract.
Concrete properly patterned through forms to look like stacked stone, and polished with a range of colour (not monolithic grey) so at to make it appear 'real'......attractive railings/bannisters, non-utilitarian light fixtures, the strategic use of ivy.
None of these are expensive, they don't require a 'name' architect. But they do require a conscious effort to not just 'throw stuff up'.
Sadly, many of us here are very cynical as to whether such basic consideration may be offered.