MDX Software Curved & Straight Steel Bridge Design & Rating is currently in use by many ENR Top 500 design firms and state DOTs to design and rate steel girder bridges for compliance with AASHTO Specifications: the 17th Edition of the AASHTO Standard Specification for Allowable Stress Design (ASD) and Load Factor Design (LFD), and the 6th Edition LRFD Bridge Design Specifications, including interims. (The 7th Edition of LRFD version is in development. Portions of the 7th edition are currently available as options. Contact Tech Support for more info.)

This package is actively maintained and has been continually enhanced as a result of the high level of technical support that we have been providing our users for over 25 years.