I don't see a problem, you can just obtain the guys responsible for the bridge's telephone number, and ring them, and stick the telephone number on the talk page and how you found it (the number is normally a public number anyway, so there's likely to be no privacy issues). Anybody wanting to verify it can ring the number. You have then referenced the information. There may well be websites as well you can reference.
It's only OR if *you* are making a new *synthesis* of information. Merely ringing somebody or looking at something on the web to see if the bridge is open/closed isn't OR, it's just consulting a source.