Mill Brook Bridge - Credit: Wikimedia Commons
The Mill Brook Bridge is a historic stone arch bridge, located just north of Lower Blissville Road in Lisbon, Connecticut. With a plausibly estimated construction date of the 1790s, it is probably the oldest surviving stone arch bridge in the state. It was listed on the National Register of Historic Places in 1997. Since then, it has deteriorated and is partially collapsed. Read more on Wikipedia
Source: en.wikipedia.org