Colwell Cut Viaduct
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]
Colwell Cut Viaduct | |
 Colwell Cut Viaduct, 1982 | |
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| Location | Legislative Route 66 over the Pittsburg and Shawmut Railroad southwest of Seminole, Mahoning Township, Pennsylvania |
|---|---|
| Coordinates | 40°56′13″N 79°21′47″W |
| Area | less than one acre |
| Built | 1922 |
| Built by | Concrete Steel Bridge Co. |
| Architectural style | Open-spandrel arch |
| MPS | Highway Bridges Owned by the Commonwealth of Pennsylvania, Department of Transportation TR |
| NRHP reference No. | 88000796[1] |
| Added to NRHP | June 22, 1988 |
It was listed on the National Register of Historic Places in 1988.[1]
References
- "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- "National Historic Landmarks & National Register of Historic Places in Pennsylvania" (Searchable database). CRGIS: Cultural Resources Geographic Information System. Note: This includes T.R. Sitler (July 1982). "National Register of Historic Places Inventory Nomination Form: Colwell Cut Viaduct" (PDF). Retrieved 2012-08-24.
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