Category: New Construction
Date: 5/1/2016
Tags: Build It Back, Coastal, Flood Zone, Foundation, House Lift, Marine, Residential, Support
Multiple house lift projects in Gerritsen Beach (Brooklyn, NY), funded through the “Build it Back” program post Superstorm Sandy, chose helical piles for the new foundations.
Project Summary:
- Helical Pile Type: 1 1/2″ Square Shaft
- # of Helical Piles: approximately 2o to 30 per property
- Location: Brooklyn, NY
- Installation Depth: 50′-70′
- Equipment Used: Dingo walk-behind fitted w/Pengo RS 7 drivehead
- Challenge/Unique Aspect: Helical Piles in the organic, weight of hammer soils were going between 100′ and 200′. Danbro recommended lowering the load per pile, using more piles and using a helical extension with a trailer, (two additional 14″plates) to get capacity between 50′ and 60′. Less depth and faster installations more than compensated for a few additional piles and helped save the program money when these soil conditions were encountered.
- Installers: Various Certified Danbro installers
- Engineer/Architect: AECOM
