Piper & Shiffler Bridge Co.
California Avenue Bridge (Old) (Allegheny County, Pennsylvania)
Built 1889Lost Linville-Piper Variant Whipple deck truss bridge over Woods Run on California AvenueReplaced by a new bridge
PRR - Steubenville Bridge (1863) (Jefferson County, Ohio)
Built 1863Lost Whipple through truss bridge over Ohio River on Pennsylvania RailroadReplaced by a new bridge