Drilled Shafts

Drilled shaft foundations are a very established deep foundation technology. They are constructed typically by excavating a 3-12 ft in diameter hole and constructing a cast-in-place reinforced concrete foundation within the hole, typically by placing in the steel reinforcement and subsequently pouring in concrete (very commonly using Tremie pipes). These foundation systems have excellent axial capacity due to a combination of side shearing and end bearing resistance. The size of the foundations also allows for significant resistance to lateral and overturning loads. Drilled commonly reach depths of up to 200 ft and may extend to 300 ft or more.

Abbott Biotechnologies - Storm Water Wells
AT&T Center Retention System
Ave De Loiza
Brazos River Bridge
Calaveras Lake Bridge
Carolina Bays Parkway - Alt Foundation Design
Cemex USA Balcones Cement Plant Expansion
Dallas Area Rapid Transit
De Diego Bridge Modifications
Flint Creek Power Plant Environmental Retrofit
Folly River
Hacienda Elena
Harbor Wind 1.5MW Turbine Project
I-4 / Crosstown Connector
I-495 Emergency Repair Project
IH45 Direct Connectors
IH59 Realignment
Jordan River IH10 Replacement Bridge
LA Ship Rail Remediation
LA-8 Bridge over the Ouchita River