Its a late 1870s or early 1880s Whipple, based on the appearance and lightness of structure.
I wish there was more detail so that the builder could be identified. I'd love to find another Columbia Bridge Works product. We've got two identified in IL (one still in existence). I'd love to find more.
I'm still hoping to determine that they built bridges in NJ.
Regards,
Art S.
Art, thank you. I am surprised you were able to tell anything about this bridge. I'm still looking for another photo !