Two colour slides with a view of the top of the Welland Aqueduct looking south, c. 1970s. The Welland River is on the right, mostly frozen over, and the Main Street Bridge is in the background.
Colour slide with a view of the Welland Canal and the Main Street Bridge with greenery in the foreground, as taken from the bottom of Aqueduct Street, August 1969.
Black and white photographic print of watertight lock gates under construction on the Fourth Welland Canal, undated. A description states: 'A pair of the mighty lock gates that are 82 feet high, 45 feet wide and weigh about 480 tons each. 43,560…