Grist Mill Bridge - Credit: Wikimedia Commons
The Grist Mill Bridge is a historic bridge in Lebanon, Maine, carrying Little River Road across the Little River. Although the bridge has a 20th-century wooden deck on rubblestone abutments and pier, it is functionally similar to the bridge's original deck, which was also a wooden structure that may have existed as early as 1774. The bridge was listed on the National Register of Historic Places as a rare example of a bridge in the state with some essential 18th-century elements intact. Read more on Wikipedia
Source: en.wikipedia.org