The updated FHWA Deep Foundation Load Test Database (DFLTD v.2) is now available!

The Federal Highway Administration (FHWA) Office of Infrastructure Research and Development (HRDI) would like to announce the availability of the updated FHWA Deep Foundation Load Test Database (DFLTD v.2). 

The DFLTD v.2 contains over 1,600 research quality load test results on various types of piles and drilled shafts. The database is relational where the records can be queried in numerous ways to include foundation type and size, subsurface soil information, and location. The functionalities included in the software will help facilitate best practice and greater reliability in the design and construction of different deep foundation elements. The DFLTD v.2 can be used by Federal and State agencies, universities, consultants and contractors, design engineers and planners, and research and development professionals.

The DFLTD v.2 replaces the previous DFLTD (v.1) developed at TFHRC to meet current operating system requirements and also adds new information on over 150 load tests on Large Diameter Open-End Piles (LDOEPs). The DFLTD v.2 was developed as part of an ongoing research study to evaluate the bearing resistance of LDOEPs and calibrate resistance factors for both static and dynamic analysis methods. Instructions on how to install and use the DFLTD are provided in the associated User Manual (FHWA-HRT-17-034). The DFLTD v.2 and the User Manual can be downloaded from the Turner-Fairbank Highway Research Center website.