Harrisburg Underpinning


Date: 11/1/2018


The front corner of a residential home in Harrisburg, PA was settling. The engineer of record designed the plan of repair with Push Piers, but the homeowner wanted a less invasive method that didn’t require mounting a hydraulic frame to their wall and jacking on their already jeopardized foundation as part of the repair process. The foundation contractor provided a quicker, safer, and less invasive method using helical piers.

Project Summary:

  • Helical Pile Type: RS2875.203
  • # of Helical Piles: 6
  • Location: Harrisburg, PA
  • Installation Depth: 15′
  • Ultimate Pile Capacity: 45 kips
  • Equipment Used: 12K Drive Head, Marian Torque Indicator, Hydraulic Jacks
  • Challenge/Unique Aspect: In one morning, the installation contractor installed 6 helical underpinning piles to the necessary torque.  Using hydraulic jacks mounted on top of the piles, they were able to lift the foundation back to its original height.
  • Engineer/Architect: Northeast Foundations and Concrete