Stone Sign Post Road Bridge over Plum Brook

[3] Built in 1903 by John W. Scott of Flemington, it was added to the National Register of Historic Places on October 4, 2016, for its significance in engineering.

[1][4] It was listed as part of the Historic Bridges of Delaware Township, Hunterdon County, New Jersey Multiple Property Submission (MPS).

[5] The 26 foot (7.9 m) long single-span bridge crosses Plum Brook, a tributary of the Wickecheoke Creek, which flows into the Delaware River at Prallsville.

According to the nomination form, it is a distinct modification of a traditional Warren truss bridge.

Scott also built the nearby Peck's Ferry Bridge, which also crosses Plum Brook.