PROJECT CASE 3
Helical Pile: John Heinz Wildlife Refuge Bunkhouse – Philadelphia PA
Vertical Pile Detail:
3 1/2” Round Shaft with 10”-12” helical plates (Filled with grout)
# of Piles: 115
Length: 15’-0”
Required Torque = 5,800 ft-lbs
Design Loads:
10 Tons Compression
5 Tons Tension
0.25 Tons Lateral
Battered Pile Detail:
1 1/2" Solid Square Shaft with 10”-12” helical plates
# of Piles: 14
Length: 15’-0”
Required Torque = 3,000 ft-lbs
Design Loads:
7.5 Tons Compression
7.5 Tons Tension




Gencorelli Engineering effectively designed a helical pile foundation, layout and connection for the wooden modular bunkhouse building. A helical pile foundation solution was essential for supporting the building above grade and providing no spoils on the site. As a national preserved park, no excavation was permitted on the site. Helical piles were the perfect solution for the deep foundation and to elevate the building without any spoils. The building needed to be elevated above grade to provide room for MEP.