I have added "wrought iron" to categories for this bridge considering the builders and the construction date of 1885. This seems appropriate unless proven otherwise.
This bridge is almost identical to the nearby Bois D'Arc Bridge. I suspect that it may have been built by the same company at about the same time.
Went and visited this bridge last night, and it was worth the trip! The bridge is very easy to find: just take 163rd Street to Gordon and follow the road west for about 1 mile. The road will bend a little and you will come to a modern concrete bridge-the old bridge is right next to it on the north side. I wouldn't try walking down to it except maybe in the winter time: it is quite overgrown at both approaches.