DEEP FOUNDATIONS
BELOW GRADE EXCELLENCE DRIVES ABOVE GROUND SUCCESS
We partner with developers, owners, and general contractors to design and execute various deep foundation elements that perform in the toughest subsurface conditions. By combining advanced equipment, in-house expertise, and collaborative preconstruction, we deliver below-grade systems that protect schedule, control cost, and support everything built above.
Cased Continuous Flight Auger (CCFA) piles
Cased CFA piles utilize dual rotary drilling techniques where the outer temporary casing rotates in an opposite direction from the inner continuous flight auger.
Continuous Flight Auger (CFA) piles
CFA piles, also known as Auger Cast Piles (ACP), are installed using a hollow stem continuous flight auger will the drill bit and plug at the tip.
Full/Direct Drilled Displacement piles (FDP)
FDP piles are installed with a similar technique as the CFA piles except no or a relatively small amount of soil cuttings (spoils) are removed from the ground.
Drilled Caissons
Drilled Caissons are very high-capacity deep foundations typically installed when competent bedrock is encountered within about 150-ft from ground surface.
Drilled Micropiles
Drilled Micropiles, commonly known as minipiles, are installed by drilling a casing typically 9.625-inches to 24-inches in diameter into the load bearing soil stratum.
Drilled Shafts
Drilled Shafts are typically installed by drilling a large diameter (3- to 8-ft) casing to design depth.
Drilled Structural Tie-downs (Anchors)
Tie-down anchors are tension elements typically installed below shear cores of high-rise structures or where tension loads are required.
Driven Piles
Driven piles are installed by vibratory or impact methods and can be made of timber, steel or precast concrete.
Related Services
Sheet Piling 
Secant Pile Wall
