National Register. (National Register Information System)
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Colwell Cut Viaduct
National Register: 88000796 (6/22/1988)
Cited Architects, Engineers, and Others
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(LR 66 over Pittsburgh & Shawmut RR)
Pennsylvania (Seminole vicinity, Armstrong)
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- Architects (from NRIS):
Concrete Steel Bridge Co.
Highway Bridges Owned by the Commonwealth of Pennsylvania, Department of Transportation TR
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