Project at a Glance

• Client: Skanska RJ Industries HPWWTP JV
• Owner: New York City Department of Environmental Protection
• Design Consultant: Brown and Caldwell
• Location: Hunts Point, NY
• Tri-State Scope of Work:
  • Caisson Installation
  • Soldier-Pile Installation
  • Water Treatment

Project Summary

The project includes the installation of four 3.2-million-gallon digesters, a gas room, a control building, a digester feed pump station, a guardhouse, and walkway bridges. It also includes a few systems works, site clearing, and excavation.

Tri-State Work Summary

Tri-State thus far installed 80 rock-socketed caissons of two different-sized casings to support the new pump station and pipe bridges. We also installed 42 soldier piles to facilitate the excavation for the new digesters and associated pipe chase. Two lateral load tests were successfully performed to substantiate the design lateral loads. 

The challenges include working closely with the general contractor and NYC DEP to ensure their daily operations will not be affected by the relocating and drilling of our work.