National historic landmark rehabilitated with Helical Pulldown Micropiles in 3 days

The preservation and rehabilitation of the Robinson House will stabilize the structure, & reclaim interior spaces to evoke the buildings' historic past while re-purposing the spaces for a regional tourism center. 

Results

Stable Foundations installed 29 A B Chance SS1150 (8/10/12) leads with a 5" pulldown grout column. The helical piles torqued up between 21 and 28'.

Advantage

The small construction site was perfect for a Helical Pile Foundation. Larger pile equipment would not have been feasible on such a small site and vibration was a major concern due to the age of the existing building. 

Team

Chance Distributor: Walder Foundation Products, Chance Installer: Stable Foundations, Project Engineer: Structural Engineering Concepts (Jonathan Smith), General Contractor: Howard Shockey & Sons, Inc., Glave & Holmes, Architect.