About Infrastructure
The Office of Infrastructure has three offices:- Office of Stewardship, Oversight and Management
- Office of Bridge and Structures
- Office of Preconstruction, Construction and Pavements
The Office provides leadership, technical expertise, and program assistance to help sustain America's mobility in:
Policy and Guidance
- Geotechnical Engineering Circular No. 9 - Design and Analysis of Laterally Loaded Deep Foundations (.pdf) (April, 2018)
- Geotechnical Engineering Circular No. 10 - Drilled Shafts: Construction and Design Methods (September, 2018)
- Guide Specification for Jointed Precast Concrete Pavement (.pdf) (January, 2019)
- Jointed Precast Concrete Pavement Panel Fabrication and Installation Checklists (.pdf) (January, 2019)
- Risk-Based Interval Determination for Routine Bridge Inspections (.pdf) (06/08/2018)
- Visit the Policy and Guidance Center
Highway History
Ever wonder why Congress didn't pass the Federal-Aid Highway Act of 1956 in 1955? Do you blame the future for our traffic problems? Did the 50th anniversary of the Interstate System in 2006 make you forget other historic milestones celebrated that year? And what's the big deal about the Interstate System anyway? These and many other highway history questions are answered on the Highway history page. In addition, you will find features such as: