Project records consist of correspondence, notes, drawings and specifications for suspension bridges designed and constructed by John A. Roebling, including:  Allegheny Aqueduct, Allegheny Suspension Bridge, Delaware & Hudson Canal Aqueduct, Covington and Cincinnati Bridge, Monongahela Bridge, and Niagara Railway Suspension Bridge.  (Brooklyn Bridge records are housed separately in Series 3.)

Project records consist of correspondence, notes, drawings and specifications for suspension bridges designed and constructed by John A. Roebling, including:  Allegheny Aqueduct, Allegheny Suspension Bridge, Delaware & Hudson Canal Aqueduct, Covington and Cincinnati Bridge, Monongahela Bridge, and Niagara Railway Suspension Bridge.  (Brooklyn Bridge records are housed separately in Series 3.)