Moseley Wrought Iron Arch Bridge
The Moseley Wrought Iron Arch Bridge, also known as the Upper Pacific Mills Bridge, is a historic, riveted, wrought iron bowstring arch bridge now located on the campus of Merrimack College in North Andover, Massachusetts. It was the last of eight of this type spanning the north and south canals in Lawrence, Massachusetts built between 1864 and 1868.
Source: Wikipedia — Moseley Wrought Iron Arch Bridge (CC BY-SA 4.0)