Reliable driven pile capacity verification through dynamic impact testing (ASTM D4945)
D.W. Kozera, Inc. provides high-strain dynamic load testing services for driven piles, drilled shafts, and other deep foundation elements. Using pile driving analyzers (PDA) and advanced signal matching software, we deliver real-time insights into pile capacity, hammer performance, and stress behavior which helps contractors and engineers evaluate the load-bearing performance of their deep foundation systems without the delays or the costly setup required for static load testing.
DWK performs drivability analysis to evaluate suitable pile hammers and estimate drive times. This can be a valuable planning tool in preparing a bid.
Our team works directly with contractors to plan and execute dynamic testing programs that meet project specifications and comply with applicable codes and industry standards. We provide both testing and engineering analysis, making us a one-stop resource for verifying foundation performance on fast-paced construction schedules.
Services Offered
- High-Strain Dynamic Load Testing (PDA Testing) of Driven Piles and Drilled Shafts
- Pile Driving Monitoring and Hammer Performance Evaluation
- CAPWAP® Analysis for Capacity, Stress, and Soil Resistance Distribution
- Pile Integrity and Driving Stress Assessment
- Re-strike Testing to Evaluate Setup Effects
- Preconstruction Testing, Production Pile Verification, and Quality Assurance Support
- Reporting for DOT, municipal, and private project compliance
- Integration with Geotechnical Design and Value Engineering Reviews
Why Work with D.W. Kozera?
- Certified PDA Specialists Who Understand Field Conditions
Our engineers and technicians are PDCA-certified and trained in advanced signal matching, combining technical skill with practical insight during live pile driving. - Responsive Results that Support Construction Momentum
With rapid data turnaround and on-site interpretation, we help contractors verify capacity without slowing down production or waiting on outside labs. - Field-Ready Testing that Integrates Seamlessly with Crews
Our team works side-by-side with contractors during installation, offering real-time support and adjustments that align with field operations, not disrupt them.
High-strain dynamic testing delivers the data you need faster and more efficiently. Partner with D.W. Kozera to verify deep foundation performance with confidence. Contact us today to schedule a test or request a custom load testing program.



