Horse Valley Bridge
The Horse Valley Bridge is an historic, American, multi-span, stone, arch bridge which is located in Letterkenny Township in Franklin County, Pennsylvania. It was listed on the National Register of Historic Places in 1988. History and architectural features
This historic American infrastructure element is a , bridge with three spans, each of which measures . It was erected before 1860, and crosses Conodoguinet Creek. It was listed on the National Register of Historic Places in 1988. References 

Road bridges on the National Register of Historic Places in Pennsylvania
Bridges in Franklin County, Pennsylvania
National Register of Historic Places in Franklin County, Pennsylvania
Stone arch bridges in the United States