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Direct Pipe InstallationTM (DPI) is becoming a more prominent construction method in the pipeline crossing industry. DPI involves connecting a micro tunnel boring machine to a section of welded pipeline and utilizing a thruster on surface to push the pipeline through the ground while excavation of the soil by the MTBM commences.

The Capital Regional District (CRD) of Victoria, BC is constructing a new wastewater treatment facility. A pipeline was required to cross the Victoria Harbor between Ogden Point and McLoughlin Point. Due to the large volume of marine traffic, a trenchless methodology was chosen.

The importance of site-specific factors are often neglected which has led to significant discrepancies between expected forces and observed values during construction. Pull force estimation during Horizontal Directional Drilling (HDD) is one of the essential steps during planning and design phases of bridge projects.

The Capital Regional District (CRD) of Victoria is constructing a new wastewater treatment facility. A pipeline was required to cross the Victoria Harbour between Ogden Point and McLoughlin Point. Michels and CCI were subcontracted to deliver the design build approach to the crossing.