20th Street Housing Development

Ten new homes were being constructed on 20th Street in South Philadelphia. Urban fill and unstable soils required a deep foundation. Helical piles were designed to support the grade beams and the residential structures.

Project Summary:

  • Helical Pile Type: 2875.203 Pipe Material
  • # of Helical Piles: 300
  • Location: Philadelphia, PA
  • Installation Depth: 35′
  • Ultimate Pile Capacity: 60 kips
  • Equipment Used: Volvo Excavator, 10K Drive Head, Digital Torque Indicator
  • Challenge/Unique Aspect: To speed the installation and stay on schedule, the contractor needed to pre-drill the first 8 feet at each pile location. This project was in an existing neighborhood so little noise and no vibration also drove the decision to use helicals.
  • Installer: Vaspoli Builders Inc.