Pennsylvania Canal Guard Lock and Feeder Dam, Raystown Branch
The Pennsylvania Canal Guard Lock and Feeder Dam, Raystown Branch, also known as the Raystown Branch Feeder Canal, is an historic, American canal structure that is located in Henderson Township in Huntingdon County, Pennsylvania. The property includes the remains of a guard lock and feeder dam. It was listed on the National Register of Historic Places in 1990. History and architectural features
The guard lock was built in 1831, and the remains consist of two ninety-foot-long parallel walls that were eight feet high and fifteen feet apart. The remains of the feeder dam consist of stone and earth remnants of a dam that once stretched across the Juniata River. The lock and dam were built to allow boats built on Standing Stone Creek to enter the Pennsylvania Canal, and were abandoned with the remainder of the Pennsylvania Canal during the 1870s. It was listed on the National Register of Historic Places in 1990. References 

Industrial buildings and structures on the National Register of Historic Places in Pennsylvania
Transport infrastructure completed in 1831
Buildings and structures in Huntingdon County, Pennsylvania
Transportation buildings and structures in Huntingdon County, Pennsylvania
National Register of Historic Places in Huntingdon County, Pennsylvania