Welty's Mill Bridge is a historic multi-span stone arch bridge located at Washington Township in Franklin County, Pennsylvania.
It is a 137-foot-long (42 m), two-arch bridge built of limestone.
It was constructed in 1856.
It crosses the East Branch of Little Antietam.

It was listed on the National Register of Historic Places in 1983.
Welty's Mill Bridge is a historic multi-span stone arch bridge located at Washington Township in Franklin County, Pennsylvania. It is a 137-foot-long (42 m), two-arch bridge built of limestone. It was constructed in 1856. It crosses the East Branch of Little Antietam.
It was listed on the National Register of Historic Places in 1983.
Welty's Mill Bridge