An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
In the 1980s, the Federal Highway Administration (FHWA) began the collection of research quality load test data and associated subsurface information leading to the development of the first version of the FHWA Deep Foundation Load Test Database (DFLTD v.1). The objective was to serve as a...
We are committed to providing our visitors with useful and updated information. We invite you to visit this page frequently to see what items have been added or updated on the Turner-Fairbank Highway Research Center Web site.
We are committed to providing our visitors with useful and updated information. We invite you to visit this page frequently to see what items have been added or updated on the Turner-Fairbank Highway Research Center Web site.
by Richard Weingroff / FHWA News 2024-2025
IHSDM is a suite of software analysis tools used to evaluate the safety and operational effects of geometric design decisions on highways.