Cincinnati, OH.
I've never been there, but that's my guess based on a Google search. It looks like a Roebling Bridge, and
Cincinnati has one that looks much like that.
Edit: The spires on the towers really threw me off, because they don't look like that today, but
old photographs look like the one you took, and an article I found shows that it was refurbished.
I could still be wrong but it looks the same to me.