Clearly someone from APS needs to go to Jersey and settle this.
So I'm bored today, and had some time to Google. I'm saying again that's not flat stock. it my bean H-beam (I confess, I had forgotten the differences between H and I) but there is definitely a web there.
I present my evidence for my last try:
1. Linked article labels it an "I beam". Not the most compelling I know, what with journalistic standards being what they are, but hey, they might be right.
2. Look at the diagonal beam coming up to the lamination. On the outside you can clearly see four rows of bolts with a gap in the center. This pattern is copied on the horizontal beam. Now look at the inside of the diagonal truss. You can only see the heads of two rows of bolts. That's because the other two rows are on the other side of the web, and hidden from view. The beam's web lies in that gap between the rows of bolts.
3. I took a screen shot of the pic quoted above and yelled "Enhance" at my computer in an attempt to correct for curmudgeon eyes. Compare the depth of the beam on the inside of the bridge (full depth) vs the depth on the outside. You can (i can anyway) pretty clearly see that there is a horzontal chunk of metal about half way up. Also you can just pick out the rows of bolts again. The "outside" face has 4 rows, and the inside only has two, because the top two rows are hidden by the web.
We can know return to our regularly scheduled kvetching about cornbread and plotting things to wrap with bacon.