There is only two for my county and only one is obsolete. Me and Milkman can relate to this one:
436 ALTAMONTE SPRINGS SEMINOLE I-4 SR-436 OVER I-4
They keep screwing with it (add ons) but have not replaced any of it. It is the major bridge in the area.
Orlando is awful about replacing bridges and most for or over the main traffic artery through Greater Orlando are over 40 years old. There are 77 bridges in the area that are on the list. (I was going to copy & paste them but that would be too long).