Old Ben is no engineer, but that looks like a serious problem.
Come on! A little crazy glue, some elbow grease, good as new!
Seriously, though, it does appear that you could replace the gusset plates with longer ones, grabbing the intact portion of the beam, assuming you could winch it back into place. Something like this happened about ten years ago in Boston when a (Canadian) truck hit a vertical beam on a major traffic artery. They actually managed to save the bridge and it’s held up all these years. You would probably need thicker gusset plates, and on both sides, but it would be a lot cheaper and faster than a new bridge.
Order the gusset plates on Tuesday, put out a request for repair bids on Monday.
Wow, that’s a pretty clean break. Don’t see any obvious rust.
That’ll buff right out.
What’s in that rusty inner bit? Looks like a round something? A void, rivet? Weird.
That’ll buff right out!
That's not a crack
That's a clean break. A total disconnect.
Sort of like Obama's claim for his performance as president and painful reality...
Oooof! As the graduate of an engineering program that included classes in Statics, Solid Mechanics, Materials Science, etc, I can tell you in no uncertain terms, That Is Not Good.
Technically speaking.