Built in 1910, the Kellogg residence was originally designed for use as a boathouse, and was later converted into a residential home. The current owners decided to raise the house 6′ to 8′ and completely demolish and rebuild the first floor area, while preserving the second floor construction. Initially, the owners were unable to find a contractor to perform the required jacking procedure for the house lift due to poor soil conditions and limited access to install a new foundation.
- Helical Pile Type: 1.5″ SS with 6″ cased grout column
- # Helical Piles: 72
- Location: Bay Head, NJ 08742
- Installation Depth: 35 – 40 Feet
- Equipment Used: Mini Excavator with 6,000 Ft. Lb. Drive Head
- Challenge/Unique Aspect: The structure was jacked up and temporarily supported on cribbing. Then segmented five-foot helical lead sections and extensions were installed to provide a deep foundation in the weak soils. The installer had to overcome access, overhead access, mobilization and a high-water table to install a grouted helical micro pile to deal with buckling and lateral concerns.
- Location: Bay Head, NJ
- Engineer/Architect: W.J. Castle
- General Contractor: Hydro Marine Construction