U.S. Courthouse | Fort Lauderdale

Geotechnical engineering for a federal landmark

When Brasfield & Gorrie began planning the new U.S. Courthouse in Fort Lauderdale, they needed a geotechnical partner who could deliver dependability and value for a complex foundation system. ECS Group of Companies (ECS) stepped in with a comprehensive subsurface exploration and engineering program designed to create deep foundation performance for this 12-story structure with a basement.

Challenge: Complex foundations on a tight schedule

The courthouse design called for structural steel framing and precast concrete panels supported on 30-inch augercast-in-place (ACIP) piles extending up to 140 feet below grade. Initial load assumptions were conservative, presenting an opportunity to apply value engineering, reducing foundation costs without compromising performance. Delivering that value within an aggressive construction timeline added another layer of complexity.

Solution: Advanced testing and value engineering from the ground up

ECS proposed a series of Standard Penetration Test (SPT) borings — three locations drilled to depths of 120 feet — to confirm subsurface conditions and refine pile design. ECS also offered pressuremeter testing as an optional service, measuring in-place soil stiffness and compressibility to support higher bearing pressures or alternative foundation strategies. By integrating pressuremeter results with traditional SPT data, ECS helped Brasfield & Gorrie achieve meaningful cost savings while maintaining structural integrity.

The scope also included ground penetrating radar (GPR) surveys to identify underground utilities, laboratory testing for soil classification and corrosion potential and detailed engineering analyses. The final report delivered recommendations for ACIP pile lengths, axial and lateral capacities and embedment requirements tailored to site-specific conditions. ECS anticipated a five- to six-week schedule from authorization to final report, keeping the project on track for its demanding timeline.