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INCO Superstack

Greater Sudbury ON Canada

Construction Dates
Building Uses
 - industrial
Structural Types
 - chimney
Architectural Style
 - modern
 - concrete

 Heights ValueSource / Comments 
Roof1247 ft

- Architect: M.W. Kellogg Company

- Weight: 39006 t

- Diameters: 35.4 m at base and 15.8 at top

- The chimney was built in 60 days

- Owner/Operator: Inco Limited

- This was the world's tallest chimney for 15 years, until the construction of the Ekibastuz chimney in Kazakhstan in 1987.

- Upgrades to the chimney finished in 1994 reduced emissions from the stack. Its exhaust is now mostly water vapour.

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Drawing by Damien Koh
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