The AASHTO LRFD Bridge Construction Specifications are intended for use in the construction of bridges. The specifications employ the Load and Resistance Factor Design (LRFD) methodology, ..... Read More
These specifications cover the design, evaluation, and rehabilitation of highway bridges. The design provisions of these specifications employ the Load and Resistance Factor Design (LRFD) methodology, ..... Read More
The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities.
They are available as a one-year online ..... Read More
Information about the TRB cooperative research programs in highways, transit, airports, freight, and hazardous materials. In particular, the NCHRP is AASHTO’s research program and was developed to address the day to day research needs of state transportation departments.