Colwell Cut Viaduct - Credit: Wikimedia Commons
Colwell Cut Viaduct - Credit: Wikimedia Commons
Colwell Cut Viaduct, also known as Hogback Hill Bridge, is a historic concrete arch bridge located at Mahoning Township in Armstrong County, Pennsylvania. It was built in 1922, and is a three-span bridge, with a main span. It crosses the Pittsburg and Shawmut Railroad. Note: This includes Read more on Wikipedia
Source: en.wikipedia.org