Microtunneling

Schweitzer Pump House Wet Well & Intake Piping

Schweitzer Pump House Wet Well & Intake Piping

Scope

Michels used microtunneling methods to install a 163-foot tunnel into a reservoir to provide a local mine with fresh water. A Microtunnel Boring Machine (MTBM) was launched from a 40-foot-deep shaft to mine the tunnel, which measured 74 inches in diameter. Retrieval of the MTMB was done in the reservoir via wet retrieval using divers and an overhead crane from shore.

Michels used its established pre-planning procedure to make sure that all necessary parts and equipment were readily available on-site to help the job run efficiently.

Projects

Microtunneling

Delco Raw Water Pump Station

Ohio

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Delco Raw Water Pump Station

Microtunneling

Columbia Water Supply

Washington

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Columbia Water Supply

The Tualatin River microtunnel set a North American record for the tightest curve radius for an 84-inch pipe.

Microtunneling

Tualatin Interceptor and Siphon Improvements

OR

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Tualatin Interceptor and Siphon Improvements

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been accomplished without passion.

Georg Wilhelm Friedrich Hegel

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