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

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