Deep Foundation Testing, Analysis, and Consulting Services. 

GRL Engineers services range from small specialized testing jobs (such as evaluating unknown foundations)
to large-scale projects requiring the monitoring and analysis of hundreds of test piles nationwide.


Testing & Consulting



View all
case histories >
Pensacola Bay Bridge
The U.S. 98 Pensacola Bay Bridge replacement project began in 2017 to address hurricane evacuation traffic needs. The replacement required PDA Testing on test piles and production piles. Data was assessed via CAPWAP® data analyses to provide simulated static load testing. Hurricane Sally interrupted construction in 2019, and potential damages to production piles were assessed using Low Strain Integrity Testing.
Read More >
I-77 Canton Bridge Structures
The large aquifer in Canton, OH presented multiple drilled shaft installation challenges on the I-77 mainline bridge structures. GRL Engineers were involved in mulitple phases of construction, providing a variety of testing services including Dynamic Load Testing with an APPLE drop weight system, CAPWAP® Analyses to simulate static load testing, Drilled Shaft Base Cleanliness Evaluations, Thermal Integrity Profiling, and Static Load Testing on CFA piles. The project was considered monumental as it was the Ohio DOT's first time utilizing Dynamic Load Testing on a CFA pile.
Read More >
Bridge Abutment and Boardwalk at TI' awh ah dees Park
Test piles for the bridge abutments underwent GRLWEAP Pile Driveability Analysis to assess if the proposed hammer would be able to achieve specified driving depths. GRL Engineers provided Pile Driving Monitoring on the abutments and utilized CAPWAP® Analyses to simulate static load testing. Additionally, the new boardwalks were tested with Static Compression Load Tests using a hydraulic jack.
Read More >