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Channelling sides of the rock cutting during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of workers channelling sides of the rock cutting during the fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Building an earth dam around the concrete core-wall, during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of workers building an earth dam around the concrete core-wall, during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and…
Reinforced retaining wall on a pile foundation, during fourth Welland Canal construction, c. 1920
Black and white halftone photograph showing a reinforced retaining wall on a pile foundation, during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Reinforced concrete entrance wall at Lock 1 being backfilled, during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of a reinforced concrete entrance wall at Lock 1 being backfilled, during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and…
West wall of Lock 1 during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of the west wall of Lock 1 during fourth Welland Canal construction, c. 1920. 34 feet yet to be built is shown as a dotted illustration. From the booklet "Welland Ship Canal (Under Construction)" by the Department…
Lock 2 during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of Lock 2 during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Interior of filling culvert in west wall of Lock 1, during fourth Welland Canal construction, c. 1920
Black and white halftone photograph of the interior of the filling culvert in the west wall of Lock 1, during fourth Welland Canal construction, c. 1920. Size is 14 ft. x 16 1/2 ft. From the booklet "Welland Ship Canal (Under Construction)" by the…
Concrete protection to banks, during fourth Welland Canal construction, c. 1920
Black and white halftone photograph showing the concrete protection to banks, during fourth Welland Canal construction, c. 1920. From the booklet "Welland Ship Canal (Under Construction)" by the Department of Railways and Canals.
Drag line opening new channel on Welland River to the new syphon culvert, c. 1927
Black and white photograph showing a drag line opening a new channel on the Welland River to the new syphon culvert, c. 1927. Merritt Island on the right.