Frehn Bridge, also known as Huntingdon County Bridge No. 1, was a historic Pratt truss bridge spanning Sideling Hill Creek and located at Springfield Township, Huntingdon County, Pennsylvania. It was built in 1890, and measured in length and had a timber deck. It was added to the National Register of Historic Places in 1990. The bridge has been demolished and replaced with a modern structure. References External links HAER Engineering in Huntingdon County Road bridges on the National Register of Historic Places in Pennsylvania Bridges completed in 1890 Bridges in Huntingdon County, Pennsylvania National Register of Historic Places in Huntingdon County, Pennsylvania Pratt truss bridges in the United States Metal bridges in the United States