East Washington Street Bridge (Lawrence County, Pennsylvania)
Built 1909Concrete arch bridge over Neshannock Creek on East Washington Street in New CastleOpen to traffic
Grant Street Bridge (Lawrence County, Pennsylvania)
Built 1914Through truss bridge over Shenango River on Grant Street in New CastleClosed to all traffic
Jefferson Street Bridge (Lawrence County, Pennsylvania)
Built 1914Concrete arch bridge over Big Run on Jefferson Street in New CastleOpen to traffic
Mahoning Avenue Viaduct (Lawrence County, Pennsylvania)
Built 1923; rehabilitated 1985Through truss bridge over Shenango River on Mahoning Avenue in New CastleOpen to traffic
Mahoning River Bridge (Lawrence County, Pennsylvania)
Built 1932Through truss bridge over Mahoning River on TR 395 (Old PA 18) in New CastleOpen to traffic
Neshannock Creek Bridge (Lawrence County, Pennsylvania)
Built 1917; rehabilitated 1982Through truss bridge over Neshannock Creek on Mill Street in New CastleOpen to traffic
Willowgrove Road Bridge (Lawrence County, Pennsylvania)
Built 1921Concrete through arch bridge over Hickory Run on Willowgrove Road in New CastleClosed to all traffic