Micropile and Drilled Pier Installation

The project involved replacement of an existing 69 kV transmission line between Carsonia and S. Reading, PA. The existing line was exhibiting signs of deterioration, increasing required maintenance needs, and was determined to be approaching the end of its life.

Team Members


Crux Subsurface

JW Didado

Crux’s Role

Crux’s scope included design and installation of nine steel cap micropile foundations, as well as installation of seven drilled pier foundations. Specified micropile sites featured challenging drilling and/or challenging access conditions. Sites were accessed using a combination of conventional vehicle and forklift support, and leveling drill platforms were employed to negate the steep, rocky slopes where necessary.

Crux completed one proof test per foundation, and provided fabrication and installation of the galvanized steel pile caps. Scope for drilled pier foundations included procurement of concrete and reinforcing through anchor bolt setting, concrete testing and final construction inspection. Remaining foundations on the alignment were specified as direct embedded, and installed by Crux sister company, JW Didado.

All foundation work was successfully completed within the allotted schedule.

Crux installed 9 steel cap micropile foundations and 7 drilled pier foundations.

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