Dual Code Provisions of Online Help
This help content covers both the AASHTO LRFD Bridge Design Specifications version of the software, and the AASHTO Standard Specifications 17th edition version.
It is possible to switch between the two versions at any stage without loss of data, other than loading data for live loads, by making the appropriate selection from the Options Menu.
Most topics in the help apply to both design codes. Where there are specific differences, sections are duplicated, the first being the version for the AASHTO LRFD Bridge Design Specifications version, and the second being for the AASHTO Standard Specifications 17th edition version.
The following topics illustrate the format described:
Roadways and Notional Lanes for LRFD
Roadways and Notional Lanes for Standard 17th