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Inco Superstack, Sudbury

(2.1/5 based on 35 reviews on the web)
The Inco Superstack in Sudbury, Ontario, with a height of 380m, is the tallest chimney in Canada and the Western hemisphere, and the second tallest freestanding chimney in the world after the GRES-2 Power Station in Kazakhstan. It is also the second tallest freestanding structure of any type in Canada, behind the CN Tower but ahead of First Canadian Place. It is the 40th tallest freestanding structure in the world. The Superstack is located on top of the largest nickel smelting operation in the world at Inco's Copper Cliff processing facility in the city of Greater Sudbury.HistoryThe Superstack was built by Inco Limited at an estimated cost of 25 million dollars. Construction on the structure was underway during the Sudbury tornado of 20 August 1970; the structure swayed heavily in the wind, but remained standing and suffered only minor damage. Six workers were on top of the construction platform when the storm hit; all six survived, but quit their jobs the following day. The same day was the final day of construction on the stack, with the construction fully completed by the evening of August 21.
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Reviews
TripAdvisor
  • This stack was built several decades ago to help with local pollution. It did help in that the pollution that was coming out was distributed over a wider and distant area. It's not great guns as a tou...  more »
  • This is a dirty Vale industrial site. There is toxic sulphur dioxide spewing out of the top. Don't stand under it when there is a down draft because you will definitely smell if not taste the sulphur....  more »
  • An impressive feat of engineering resulted in this stack, but for those who go to visit it will look like just a stack. Better to read about it first and understand just how high it is (second tallest...  more »