The oldest railroad covered bridge in the world is the Contoocook Railroad bridge in Contoocook Village, New Hampshire.
The 1849 covered bridge was rebuilt in 1989 and spans the Contoocook River.
The bridge is on the grounds of the Contoocook Railroad Museum which also includes a nice little park and good access to the river.
There a nice access to the river for canoes and kayaks.
