It appears that this bridge most likely replaced an earlier all wood railroad trestle. No builders plaque found on bridge so I speculate from the date found on the cement pier that this is also the date that the pony plate qirder was constructed across the relief at this time. This bridge is located roughly 30 yards west of the pass through truss railroad bridge across the Petit Jean River in Danville. The rails continue west from this point for an undetermined distance. I was unable to explore further due to fallen trees and other obstructions.