Black and white photographic print showing the Welland Canal Aqueduct siphons under construction. Captioned 'Two of the six reinforced concrete tubes or siphons, 22 feet in diameter, that will carry the Welland River under the canal at Welland. The…
Black and white photographic print showing the Welland Canal Aqueduct construction, undated. Captioned 'One of the largest sheet piling jobs in the history of engineering occurred at this spot on the Welland Ship Canal, where the present canal was…