. . . "1849" . . . . . . . . . "Roebling Aqueduct" . . . "Motor vehicles, pedestrians" . . . . . . . . . "Roebling Bridge" . . . . . . . "Roebling's Delaware Aqueduct" . . . "Roebling's Delaware Aqueduct" . . . . . . . "Roebling's Delaware Aqueduct of the Delaware & Hudson Canal" . . . . . "163.068" . . . . . . . . . . . "Delaware Aqueduct" . . . .