Defence Construction projects through the decades

1951 – The Pinetree Line
Canada and the United States reach an agreement to establish the Pinetree Line of 33 radar stations roughly along the 50th parallel, just north of the Canadian-American border. Defence Construction’s role involves the procurement of Canadian construction contractors and suppliers – keeping both sovereignty and cost control.

1953 – The Accelerated Defence Programme
Strengthening the Canadian Armed Forces is given a high priority in the early 1950s: some $200 to $300 million is designated for upgrading and expanding DND facilities. Defence Construction puts in place tenders and supervises the many Air Force and Army contracts based on plans and specifications for the work.

1954 – The Mid-Canada Line
By the end of 1954, Defence Construction is responsible for awarding the construction and some winter transportation contracts for the Mid-Canada Line—a radar network that would eventually become eight attended Section Control Stations spaced some 400 miles apart with 90 unattended Doppler Detection Stations spaced some 30 miles apart between them.

1954 – The Distant Early Warning (DEW) Line
Canada and the United States agree to an experimental program that will ultimately become the DEW Line in the Canadian Arctic, roughly along the 70th parallel and stretching more than 8,046 kilometres, 5,944 of which are in Canada. The U.S. will pay for the line, but is required to use Canadian contractors and labour.

1956 – The Northern Ontario Pipeline
The pipeline to export Alberta natural gas to eastern Canadian markets is considered a crucial supply line from the west to the east. Defence Construction signs two agreements with the Northern Ontario Pipeline Crown Corporation (NOPL): first for the provision of administrative and supervisory personnel; and second for construction and engineering services and administrative assistance. In October 1958 the pipeline is complete – overcoming the challenges of terrain, rock and muskeg.