Colwell Cut Viaduct

Colwell Cut Viaduct
Colwell Cut Viaduct, 1982
LocationLegislative Route 66 over the Pittsburg and Shawmut Railroad southwest of Seminole, Mahoning Township, Pennsylvania
Coordinates40°56′13″N 79°21′47″W / 40.93694°N 79.36306°W / 40.93694; -79.36306
Arealess than one acre
Built1922
Built byConcrete Steel Bridge Co.
Architectural styleOpen-spandrel arch
MPSHighway Bridges Owned by the Commonwealth of Pennsylvania, Department of Transportation TR
NRHP reference No.88000796[1]
Added to NRHPJune 22, 1988

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 220-foot-long (67 m) three-span bridge, with a 128-foot-long (39 m) main span. It crosses the Pittsburg and Shawmut Railroad.[2]

It was listed on the National Register of Historic Places in 1988.[1]

References

  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
  2. ^ "National Historic Landmarks & National Register of Historic Places in Pennsylvania". CRGIS: Cultural Resources Geographic Information System. Archived from the original (Searchable database) on July 21, 2007. Retrieved August 24, 2012. Note: This includes T.R. Sitler (July 1982). "National Register of Historic Places Inventory Nomination Form: Colwell Cut Viaduct" (PDF). Retrieved August 24, 2012.