Microtunneling

Columbia Water Supply

Columbia Water Supply

Scope

Michels used microtunneling to install 227 linear feet of 46-inch diameter pipe for a new water source into the Columbia River. The project was completed in one drive through soil conditions including sands, gravel, cobble, boulders and rock.

The project initiated from an 80-foot-deep, 32-foot-wide secant pile entry shaft and was completed with a wet retrieval of the microtunnel boring machine from the Columbia River.

Projects

Microtunneling

Schweitzer Pump House Wet Well & Intake Piping

Minnesota

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Schweitzer Pump House Wet Well & Intake Piping

Microtunneling

Delco Raw Water Pump Station

Ohio

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Delco Raw Water Pump Station

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

Nothing great in the world has
been accomplished without passion.

Georg Wilhelm Friedrich Hegel

Let us show you our passion.

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