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Goderich is home to the largest salt mine in the world, located 1,800 feet below Lake Huron and extends 7 square kilometres underneath the lake.

Several years ago PDI was the demolition contractor who removed Headframe #1. The lessons from the first Headframe allowed for a more streamlined approach and understanding of Headframe #2.

PDI engineered protective steel collar panels midway up the shaft walls to deflect and guide demolition debris from the upper headframe, away from the adjacent structures. The demolition was completed with a high reach excavator with processor and shear attachments. During the demolition process, a mobile crane held the debris screen, in addition to the steel collar protection.



This project was valued at $1.4 Million

PDI recycled 100% of the demolition material from this project, with all concrete being sent to the salvage yard to be crushed and processed for recycling. The steel framework, staircase and mechanical equipment were recycled at the metal/scrap facility

This project commenced in January 2018 and was completed two months later in March


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Planning was an integral part of our success, ensuring all potential outcomes were addressed during the engineering and sequencing stage.




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