The original bridge here was a covered bridge with a stone arch approach built in 1833. The covered bridge was replaced but the stone arch bridge approach is still there and open to traffic. Both bridges were recently worked on in 2009. So exactly how would you list that on here the stone arch is across a old mill race that has been filled in, and actually has its own NBI data........thoughts.
Judging by condition when photographed, this bridge has been rehabilitated again in recent years (certainly some time in the last 10 years and well after 1979 as indicted under facts). The bridge deck is in good to very good condition. It is not posted so you should probably assume it is not structurally deficient although it may be functionally obsolete.