rumbling bridge

I have driven and walk ed over this place many a time ,
so today I and family member s took a good look at it ,
and found two bridges, not one.
The lowerbridge was built in 1713 ,by a local mason WILLAIM GREY.
BUILT AS A WALK WAY with no parapet.
The second bridge or upper arch ,was erected in 1816 and is still being use as a main road waytoday .