ADAMA Software has released update 13.1 for their Mechanically Stabilized Earth retaining wall design software, MSEW 3.0 as of August 30, 2011. Some of the design methodology changes in the 2009 FHWA manual for MSE walls were implemented in Update 13, as well as a few corrections related to true bridge abutments and other bug fixes.
The American Association of State Highway and Transportation Officials (AASHTO) just released the 2008 interims for the AASHTO LRFD Bridge Design Specifications, Customary U.S. Units, 4th Edition. These specifications govern the design of foundations for federal and state highway projects. As soon as we find out if there are any significant changes with respect to bridge foundations or retaining walls, we’ll let you know.