Pittsburgh, Harmony, Butler, & New Castle Railway

Reporting mark: PHB&NC
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Harmony Line - Buhl Bridge (Butler County, Pennsylvania)
Built 1908; Line closed 1931
Lost Pratt through truss bridge over Connoquenessing Creek on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed

Harmony Line - Cascade Park Viaduct (Lawrence County, Pennsylvania)
Built 1908; Line closed 1931
Pratt through truss bridge over Buffalo, Rochester & Pittsburgh Railway & Big Run on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed

Harmony Line - Grimm Bridge (Lawrence County, Pennsylvania)
Built 1908; Line closed 1931
Lost Baltimore deck truss bridge over Connoquenessing Creek on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed

Harmony Line - Knox Bridge (Lawrence County, Pennsylvania)
Built 1908; Line closed 1931
Lost Baltimore deck truss bridge over Connoquenessing Creek on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed but not replaced

Harmony Line - Luntz's Bridge (Lawrence County, Pennsylvania)
Built 1908; Line closed 1931
Lost Pratt through truss bridge over Breakneck Creek and B&O RR on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed but not replaced

Harmony Line - Lyndora Viaduct (Butler County, Pennsylvania)
Built 1907; Line closed 1931
Lost Deck plate girder bridge over Lyndora on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed but not replaced

Harmony Line - North Sewickley Bridge (Beaver County, Pennsylvania)
Built 1908; Line closed 1931
Removed Pratt through truss bridge over Connoquenessing Creek on Pittsburgh, Harmony, Butler, & New Castle Railway
Removed

Koppel Bridge (Beaver County, Pennsylvania)
Built 1915; rehabilitated 1994; replaced in 2019
Deck truss bridge over Beaver River on PA 351 in Koppel
Replaced by a new bridge